Beyond SM Higgs Shufang Su U. of Arizona ISHP2013 IHEP Aug - - PowerPoint PPT Presentation

▶
beyond sm higgs shufang su u of arizona
SMART_READER_LITE
LIVE PREVIEW

Beyond SM Higgs Shufang Su U. of Arizona ISHP2013 IHEP Aug - - PowerPoint PPT Presentation

Apr 20, 2023 30 likes •1.31k views

Beyond SM Higgs Shufang Su U. of Arizona ISHP2013 IHEP Aug 12-17, 2013 S. Su ``BREAKTHROUGH of the YEAR - Science - S. Su 2 Higgs is discovered - Now what? S. Su 3 Celebration !!! - S. Su 3 Then What? light, weakly

slide-1
SLIDE 1
  • S. Su

Beyond SM Higgs Shufang Su • U. of Arizona

ISHP2013 • IHEP Aug 12-17, 2013

slide-2
SLIDE 2
  • S. Su
2
  • ``BREAKTHROUGH of the YEAR’’ - Science
slide-3
SLIDE 3
  • S. Su
3
  • Higgs is discovered

Now what?

slide-4
SLIDE 4
  • S. Su
3
  • Celebration !!!
slide-5
SLIDE 5
  • S. Su
4

Then What?

light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

slide-6
SLIDE 6
  • S. Su
4

Then What?

Then What? light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

slide-7
SLIDE 7
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

slide-8
SLIDE 8
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

slide-9
SLIDE 9
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

๏ Is it a SM Higgs?

slide-10
SLIDE 10
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

๏ Is it a SM Higgs? ๏ Implication of SM Higgs searches on BSM scenarios?

slide-11
SLIDE 11
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

๏ Is it a SM Higgs? ๏ Implication of SM Higgs searches on BSM scenarios? ๏ Is there more than one Higgs boson?

slide-12
SLIDE 12
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

๏ Is it a SM Higgs? ๏ Implication of SM Higgs searches on BSM scenarios? ๏ Is there more than one Higgs boson? ๏ Does this H decay to other things unexpected?

slide-13
SLIDE 13
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

๏ Is it a SM Higgs? ๏ Implication of SM Higgs searches on BSM scenarios? ๏ Is there more than one Higgs boson? ๏ Does this H decay to other things unexpected? ๏ Can we use H to look for new physics?

slide-14
SLIDE 14
  • S. Su
4

Then What?

Then What? Still a lot of hard, but fun work to do! light, weakly coupled boson: mh = 125-126 GeV, Γ < 1 GeV

๏ Is it a SM Higgs? ๏ Implication of SM Higgs searches on BSM scenarios? ๏ Is there more than one Higgs boson? ๏ Does this H decay to other things unexpected? ๏ Can we use H to look for new physics? ๏ ...

slide-15
SLIDE 15
  • S. Su
5
slide-16
SLIDE 16
  • S. Su
5
  • Higgs
slide-17
SLIDE 17
  • S. Su
5
  • Higgs

syblings H,A,H±, ...

slide-18
SLIDE 18
  • S. Su
5
  • Higgs

syblings H,A,H±, ... partners Higgsinos ...

slide-19
SLIDE 19
  • S. Su
5
  • Higgs

friends stop, ... syblings H,A,H±, ... partners Higgsinos ...

slide-20
SLIDE 20
  • S. Su
6
  • Implication of SM Higgs search on BSM scenarios
๏ MSSM ๏ NMSSM ๏ 2HDM

Higgs-assisted BSM searches

๏ SUSY electrowak-ino searches

Searches for Higgs beyond the SM

๏ exotic Higgs decays

Conclusion

Outline

slide-21
SLIDE 21
  • S. Su
7
  • I. Implication for BSM scenarios
slide-22
SLIDE 22
  • S. Su
8
  • Implication of 126 GeV Higgs

Study the consequence of (I) current Higgs search limit of 95% CL limit on σXBr (II) H in the mass range of 124 - 128 GeV (III) σXBr (gg→ H →γγ, WW, ZZ) of SM strength

The current Higgs search results already impose non- trivial constraints on various new physics extensions. MSSM, NMSSM, 2HDM, ...

๏ Focus on the Higgs sector and stop sector ๏ Mostly only consider Higgs search results

slide-23
SLIDE 23
  • S. Su
9

MSSM Higgs Sector

  • ๏ Type II Two Higgs Doublet Model

after EWSB 5 physical Higgses CP-even Higgses: h0, H0 CP-odd Higgs: A0 Charged Higgses: H±

Hu =   H+

u

H0

u

  , Hd =   H0

d

H−

d

  vu/ √ 2 vd/ √ 2

v2

u + v2 d = v2 = (246GeV)2

tan β = vu/vd

๏ tree level masses determined by mA, tanβ m2

h0,H0 = 1

2

  • (m2
A + m2 Z) ⇥

⌥ (m2

A m2 Z)2 + 4m2 Am2 Z sin2 2β

⇥ , m2

H± = m2 A + m2 W,

cos2(β α) = m2

h0(m2 Z m2 h0)

m2

A(m2 H0 m2 h0).
slide-24
SLIDE 24
  • S. Su
9

MSSM Higgs Sector

  • ๏ Type II Two Higgs Doublet Model

after EWSB 5 physical Higgses CP-even Higgses: h0, H0 CP-odd Higgs: A0 Charged Higgses: H±

Hu =   H+

u

H0

u

  , Hd =   H0

d

H−

d

  vu/ √ 2 vd/ √ 2

v2

u + v2 d = v2 = (246GeV)2

tan β = vu/vd

๏ tree level masses determined by mA, tanβ m2

h0,H0 = 1

2

  • (m2
A + m2 Z) ⇥

⌥ (m2

A m2 Z)2 + 4m2 Am2 Z sin2 2β

⇥ , m2

H± = m2 A + m2 W,

cos2(β α) = m2

h0(m2 Z m2 h0)

m2

A(m2 H0 m2 h0).

⇒ mh0 < mZ

slide-25
SLIDE 25
  • S. Su
10

Higgs Masses

  • ๏ large radiative corrections from stop sector: large Yukawa coupling

๏ To obtain relative large correction to mh0

  • relatively large stop masses (at least one)
  • large stop LR mixing

∆m2

h0 ⌅

3 4π2 m4

t

v2 ⇧ ln M 2

S

m2

t

⇥ + ˜ A2

t

M 2

S

⇤ 1 ˜ A2

t

12M 2

S

⌅⌃ + . . . ,

˜ At = At µ cot β.

๏ (mhmin) scenario: At =0 mh0 < 117 GeV for Ms < 2 TeV ~ ๏ (mhmax) scenario: At =√6 Ms mh0 < 127 GeV for Ms < 2 TeV ~

slide-26
SLIDE 26
  • S. Su
11

non-decoupling vs. decoupling region

  • black dots: 123 < mh0 or mH0 < 127 GeV

blue dots: σXBr (gg→ h0, H0 →γγ)MSSM > 80% (σXBr)SM

  • N. Christensen, T. Han, SS (2012)
slide-27
SLIDE 27
  • S. Su
11

non-decoupling vs. decoupling region

  • black dots: 123 < mh0 or mH0 < 127 GeV

blue dots: σXBr (gg→ h0, H0 →γγ)MSSM > 80% (σXBr)SM decoupling region ๏ decoupling limit

  • h0 light, SM like,
  • H0, A0, H± heavy, nearly degenerate
  • H0WW, H0ZZ coupling suppressed

~ cos(β-α)

limit” mA ⌅ mZ,

, sin(β α) ⇥ 1, cos(β α) ⇥ 0.

  • N. Christensen, T. Han, SS (2012)
slide-28
SLIDE 28
  • S. Su
11

non-decoupling vs. decoupling region

  • black dots: 123 < mh0 or mH0 < 127 GeV

blue dots: σXBr (gg→ h0, H0 →γγ)MSSM > 80% (σXBr)SM

๏ non-decoupling limit

  • all Higgses light
  • H0 SM like
  • h0WW, h0ZZ coupling suppressed

gion mA ⇥ mZ, sin(β α) ⇥ 0, cos(β α) ⇥ 1.

decoupling region ๏ decoupling limit

  • h0 light, SM like,
  • H0, A0, H± heavy, nearly degenerate
  • H0WW, H0ZZ coupling suppressed

~ cos(β-α)

limit” mA ⌅ mZ,

, sin(β α) ⇥ 1, cos(β α) ⇥ 0.

non-decoupling region

  • N. Christensen, T. Han, SS (2012)
slide-29
SLIDE 29
  • S. Su
11

non-decoupling vs. decoupling region

  • black dots: 123 < mh0 or mH0 < 127 GeV

blue dots: σXBr (gg→ h0, H0 →γγ)MSSM > 80% (σXBr)SM decoupling region ๏ h0 SM-like: large mA ≥ 300 GeV ๏ small mA ~ mZ: H0 SM-like non-decoupling region

  • N. Christensen, T. Han, SS (2012)
slide-30
SLIDE 30
  • S. Su

๏ correlation between γγ and WW

Allowed Region: gg→h0,H0→γγ, WW

h0WW coupling: source for both h0 → γγ and WW

Br(γγ) Br(γγ)SM ≈ 0.9 Br(W +W −) Br(W +W −)SM .
  • N. Christensen, T. Han, SS (2012)
slide-31
SLIDE 31
  • S. Su

Stop Masses

๏ mst1 vs mst2-mst1 ๏ M3SQ vs At Heavy stops and/or large LR mixing. purple: pass exp black dots: 123 < mh0 or mH0 < 127 GeV blue dots: σXBr (gg→ h0, H0 →γγ)MSSM > 80% (σXBr)SM

  • N. Christensen, T. Han, SS (2012)
slide-32
SLIDE 32
  • S. Su

Stop Masses

๏ mst1 vs mst2-mst1 ๏ M3SQ vs At Heavy stops and/or large LR mixing. purple: pass exp black dots: 123 < mh0 or mH0 < 127 GeV blue dots: σXBr (gg→ h0, H0 →γγ)MSSM > 80% (σXBr)SM

  • N. Christensen, T. Han, SS (2012)

๏ light stop could be fairly light ๏ heavy stop is always heavy ～ 800 GeV

slide-33
SLIDE 33
  • S. Su

Allowed Parameter Region

๏ mA vs tan β

  • N. Christensen, T. Han, SS (2012)
slide-34
SLIDE 34
  • S. Su

Allowed Parameter Region

๏ mA vs tan β

95 GeV < mA < 110 GeV, 6 < tan β < 16

Non-decoupling region

  • N. Christensen, T. Han, SS (2012)
slide-35
SLIDE 35
  • S. Su

Allowed Parameter Region

๏ mA vs tan β

95 GeV < mA < 110 GeV, 6 < tan β < 16

Non-decoupling region

A light H± around 100 GeV How about constraints from b→s γ?

  • N. Christensen, T. Han, SS (2012)
slide-36
SLIDE 36
  • S. Su
15

Indirect Experimental Constraints

  • ๏ b→s γ

b s H± t γ ๏ H± loop: always positive.

BR(Bs → Xs)exp = (3.43 ± 0.21) × 10−4, , BR(Bs → Xs)SM = (3.15 ± 0.23) × 10−4,

slide-37
SLIDE 37
  • S. Su
15

Indirect Experimental Constraints

  • ๏ b→s γ

b s χ± ˜ t γ b s H± t γ ๏ H± loop: always positive.

BR(Bs → Xs)exp = (3.43 ± 0.21) × 10−4, , BR(Bs → Xs)SM = (3.15 ± 0.23) × 10−4,

slide-38
SLIDE 38
  • S. Su
15

Indirect Experimental Constraints

  • ๏ Chargino (Higgsino/Wino - stL) loop:

negative for µM2>0, positive for µM2<0 ๏ b→s γ b s χ± ˜ t γ b s H± t γ ๏ H± loop: always positive.

BR(Bs → Xs)exp = (3.43 ± 0.21) × 10−4, , BR(Bs → Xs)SM = (3.15 ± 0.23) × 10−4,

× ˜ W ˜ Hd ˜ Hu ˜ W ˜ uL, ˜ cL, ˜ tL bR sL × × (a)

tan β

slide-39
SLIDE 39
  • S. Su
15

Indirect Experimental Constraints

  • ๏ Chargino (Higgsino/Wino - stL) loop:

negative for µM2>0, positive for µM2<0 ๏ b→s γ b s χ± ˜ t γ b s H± t γ ๏ H± loop: always positive.

BR(Bs → Xs)exp = (3.43 ± 0.21) × 10−4, , BR(Bs → Xs)SM = (3.15 ± 0.23) × 10−4,

× ˜ W ˜ Hd ˜ Hu ˜ W ˜ uL, ˜ cL, ˜ tL bR sL × × (a)

tan β light M3SQ>0 ⇒ light stL, sbL light M2 ⇒ light Wino

slide-40
SLIDE 40
  • S. Su
16

Indirect Experimental Constraints

  • 50

100 150 200 250 300 100 150 200 250 300 Mt

∼ 1 (GeV)

M2 (GeV)

  • T. Han, T. Li, SS and L. Wang (2013)
slide-41
SLIDE 41
  • S. Su
16

Indirect Experimental Constraints

  • 50

100 150 200 250 300 100 150 200 250 300 Mt

∼ 1 (GeV)

M2 (GeV)

M1 < Mst1 < Msb1 < M2

  • T. Han, T. Li, SS and L. Wang (2013)
slide-42
SLIDE 42
  • S. Su
16

Indirect Experimental Constraints

  • 50

100 150 200 250 300 100 150 200 250 300 Mt

∼ 1 (GeV)

M2 (GeV)

M1 < Mst1 < M2 < Msb1 M1 < Mst1 < Msb1 < M2

  • T. Han, T. Li, SS and L. Wang (2013)
slide-43
SLIDE 43
  • S. Su
16

Indirect Experimental Constraints

  • 50

100 150 200 250 300 100 150 200 250 300 Mt

∼ 1 (GeV)

M2 (GeV)

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1 M1 < Mst1 < Msb1 < M2

  • T. Han, T. Li, SS and L. Wang (2013)
slide-44
SLIDE 44
  • S. Su
17

Stop and sbottom search limits

  • [GeV]
1 b ~ m 100 200 300 400 500 600 700 [GeV] 1 χ ∼ m 100 200 300 400 500 600 700 forbidden 1 χ ∼ b → 1 b ~ 1 χ ∼ b → 1 b ~ production, 1 b ~
  • 1
b ~ ATLAS Preliminary =8 TeV s ,
  • 1
L dt = 12.8 fb

∫

  • 1
CDF 2.65 fb
  • 1
D0 5.2 fb =7 TeV s ,
  • 1
ATLAS 2.05 fb =7 TeV s ,
  • 1
ATLAS 4.7 fb ) theory SUSY σ 1 ± Observed limit ( ) exp σ 1 ± Expected limit ( All limits at 95% CL ATLAS-CONF-2012-165 [GeV] 1 t ~ m 200 300 400 500 600 [GeV] 1
  • m
100 200 300 400 500 ) 1
  • m
× = 2 1 ±
  • ( m
1 ±
  • +m
b < m 1 t ~ m < 106 GeV 1 ±
  • m
+5 GeV) 1
  • = m
1 ±
  • ( m
1 ±
  • +m
b < m 1 t ~ m < 103.5 GeV 1 ±
  • m
Observed limits ) theo
  • Observed limits (-1
Expected limits 1
  • m
× = 2 ± 1
  • m
  • 1
= 13 fb int L
  • 10 GeV
1 t ~ = m ± 1
  • m
  • 1
= 13 fb int L + 5 GeV 1
  • = m
± 1
  • m
  • 1
= 12.8 fb int L = 150 GeV ± 1
  • m
  • 1
= 13 fb int L = 106 GeV ± 1
  • m
  • 1
= 4.7 fb int L ATLAS Preliminary Status: December 2012 1
  • +
(*) W
  • 1
±
  • ,
1 ±
  • b+
  • 1
t ~ production, 1 t ~ 1 t ~ =8 TeV s
  • 1
= 13 fb int L =7 TeV s
  • 1
= 4.7 fb int L 0L ATLAS-CONF-2013-001
  • 1L ATLAS-CONF-2012-166
2L ATLAS-CONF-2012-167 1L ATLAS-CONF-2012-166
  • 2L [1208.4305], 1-2L [1209.2102]
  • 1-2L [1209.2102]
+ 5 GeV 1
  • = m
± 1
  • m
= 106 GeV ± 1
  • m
= 150 GeV ± 1
  • m
  • 10 GeV
1 t ~ = m ± 1
  • m
1
  • m
× = 2 ± 1
  • m
slide-45
SLIDE 45
  • S. Su
17

Stop and sbottom search limits

  • [GeV]
1 b ~ m 100 200 300 400 500 600 700 [GeV] 1 χ ∼ m 100 200 300 400 500 600 700 forbidden 1 χ ∼ b → 1 b ~ 1 χ ∼ b → 1 b ~ production, 1 b ~
  • 1
b ~ ATLAS Preliminary =8 TeV s ,
  • 1
L dt = 12.8 fb

∫

  • 1
CDF 2.65 fb
  • 1
D0 5.2 fb =7 TeV s ,
  • 1
ATLAS 2.05 fb =7 TeV s ,
  • 1
ATLAS 4.7 fb ) theory SUSY σ 1 ± Observed limit ( ) exp σ 1 ± Expected limit ( All limits at 95% CL ATLAS-CONF-2012-165 [GeV] 1 t ~ m 200 300 400 500 600 [GeV] 1
  • m
100 200 300 400 500 ) 1
  • m
× = 2 1 ±
  • ( m
1 ±
  • +m
b < m 1 t ~ m < 106 GeV 1 ±
  • m
+5 GeV) 1
  • = m
1 ±
  • ( m
1 ±
  • +m
b < m 1 t ~ m < 103.5 GeV 1 ±
  • m
Observed limits ) theo
  • Observed limits (-1
Expected limits 1
  • m
× = 2 ± 1
  • m
  • 1
= 13 fb int L
  • 10 GeV
1 t ~ = m ± 1
  • m
  • 1
= 13 fb int L + 5 GeV 1
  • = m
± 1
  • m
  • 1
= 12.8 fb int L = 150 GeV ± 1
  • m
  • 1
= 13 fb int L = 106 GeV ± 1
  • m
  • 1
= 4.7 fb int L ATLAS Preliminary Status: December 2012 1
  • +
(*) W
  • 1
±
  • ,
1 ±
  • b+
  • 1
t ~ production, 1 t ~ 1 t ~ =8 TeV s
  • 1
= 13 fb int L =7 TeV s
  • 1
= 4.7 fb int L 0L ATLAS-CONF-2013-001
  • 1L ATLAS-CONF-2012-166
2L ATLAS-CONF-2012-167 1L ATLAS-CONF-2012-166
  • 2L [1208.4305], 1-2L [1209.2102]
  • 1-2L [1209.2102]
+ 5 GeV 1
  • = m
± 1
  • m
= 106 GeV ± 1
  • m
= 150 GeV ± 1
  • m
  • 10 GeV
1 t ~ = m ± 1
  • m
1
  • m
× = 2 ± 1
  • m

strong limits from sb search.

slide-46
SLIDE 46
  • S. Su
17

Stop and sbottom search limits

  • [GeV]
1 b ~ m 100 200 300 400 500 600 700 [GeV] 1 χ ∼ m 100 200 300 400 500 600 700 forbidden 1 χ ∼ b → 1 b ~ 1 χ ∼ b → 1 b ~ production, 1 b ~
  • 1
b ~ ATLAS Preliminary =8 TeV s ,
  • 1
L dt = 12.8 fb

∫

  • 1
CDF 2.65 fb
  • 1
D0 5.2 fb =7 TeV s ,
  • 1
ATLAS 2.05 fb =7 TeV s ,
  • 1
ATLAS 4.7 fb ) theory SUSY σ 1 ± Observed limit ( ) exp σ 1 ± Expected limit ( All limits at 95% CL ATLAS-CONF-2012-165 [GeV] 1 t ~ m 200 300 400 500 600 [GeV] 1
  • m
100 200 300 400 500 ) 1
  • m
× = 2 1 ±
  • ( m
1 ±
  • +m
b < m 1 t ~ m < 106 GeV 1 ±
  • m
+5 GeV) 1
  • = m
1 ±
  • ( m
1 ±
  • +m
b < m 1 t ~ m < 103.5 GeV 1 ±
  • m
Observed limits ) theo
  • Observed limits (-1
Expected limits 1
  • m
× = 2 ± 1
  • m
  • 1
= 13 fb int L
  • 10 GeV
1 t ~ = m ± 1
  • m
  • 1
= 13 fb int L + 5 GeV 1
  • = m
± 1
  • m
  • 1
= 12.8 fb int L = 150 GeV ± 1
  • m
  • 1
= 13 fb int L = 106 GeV ± 1
  • m
  • 1
= 4.7 fb int L ATLAS Preliminary Status: December 2012 1
  • +
(*) W
  • 1
±
  • ,
1 ±
  • b+
  • 1
t ~ production, 1 t ~ 1 t ~ =8 TeV s
  • 1
= 13 fb int L =7 TeV s
  • 1
= 4.7 fb int L 0L ATLAS-CONF-2013-001
  • 1L ATLAS-CONF-2012-166
2L ATLAS-CONF-2012-167 1L ATLAS-CONF-2012-166
  • 2L [1208.4305], 1-2L [1209.2102]
  • 1-2L [1209.2102]
+ 5 GeV 1
  • = m
± 1
  • m
= 106 GeV ± 1
  • m
= 150 GeV ± 1
  • m
  • 10 GeV
1 t ~ = m ± 1
  • m
1
  • m
× = 2 ± 1
  • m

stop limit relatively weak. strong limits from sb search.

slide-47
SLIDE 47
  • S. Su
18

Stop and sbottom decay

  • 200
150 100 Mass (GeV) ˜ b1 ˜ t1 ˜ χ+ 1 ˜ χ0 1 b Z/h b W + ˜ b1 ˜ t1 ˜ χ0 2 ˜ χ0 1 b Z/h c ˜ χ0 2 ˜ χ± 1 Z/h W b

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1

slide-48
SLIDE 48
  • S. Su
18

Stop and sbottom decay

  • 200
150 100 Mass (GeV) ˜ b1 ˜ t1 ˜ χ+ 1 ˜ χ0 1 b Z/h b W + ˜ b1 ˜ t1 ˜ χ0 2 ˜ χ0 1 b Z/h c ˜ χ0 2 ˜ χ± 1 Z/h W b

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1

10
  • 3
10
  • 2
10
  • 1
1 100 120 140 160 180 200 bW*χ ∼0 1 bχ ∼+ 1 cχ ∼0 1 Mt ∼ 1 (GeV) BR(t ∼ 1)
slide-49
SLIDE 49
  • S. Su
18

Stop and sbottom decay

  • 200
150 100 Mass (GeV) ˜ b1 ˜ t1 ˜ χ+ 1 ˜ χ0 1 b Z/h b W + ˜ b1 ˜ t1 ˜ χ0 2 ˜ χ0 1 b Z/h c ˜ χ0 2 ˜ χ± 1 Z/h W b

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1

0.25 0.5 0.75 1 100 150 200 250 300 bχ ∼0 2 bχ ∼0 1 Mb ∼ 1 (GeV) BR(b ∼ 1)
slide-50
SLIDE 50
  • S. Su
18

Stop and sbottom decay

  • 200
150 100 Mass (GeV) ˜ b1 ˜ t1 ˜ χ+ 1 ˜ χ0 1 b Z/h b W + ˜ b1 ˜ t1 ˜ χ0 2 ˜ χ0 1 b Z/h c ˜ χ0 2 ˜ χ± 1 Z/h W b

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1

slide-51
SLIDE 51
  • S. Su
19

Stop, sbottom and Wino spectrum

  • 50
100 150 200 250 300 100 150 200 250 300 Mt ∼ 1 (GeV) M2 (GeV)

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1 M1 < Mst1 < Msb1 < M2 M2 < M1 disfavored

Non-decoupling region of MSSM: highly predictive spectrum

  • T. Han, T.Li, SS and L. Wang (2013)
slide-52
SLIDE 52
  • S. Su
19

Stop, sbottom and Wino spectrum

  • 50
100 150 200 250 300 100 150 200 250 300 Mt ∼ 1 (GeV) M2 (GeV)

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1 M1 < Mst1 < Msb1 < M2 M2 < M1 disfavored

Non-decoupling region of MSSM: highly predictive spectrum

  • T. Han, T.Li, SS and L. Wang (2013)
slide-53
SLIDE 53
  • S. Su
19

Stop, sbottom and Wino spectrum

  • 50
100 150 200 250 300 100 150 200 250 300 Mt ∼ 1 (GeV) M2 (GeV)

M1 < M2 < Mst1 < Msb1 M1 < Mst1 < M2 < Msb1 M1 < Mst1 < Msb1 < M2 M2 < M1 disfavored

Non-decoupling region of MSSM: highly predictive spectrum

  • T. Han, T.Li, SS and L. Wang (2013)
slide-54
SLIDE 54
  • S. Su
20
slide-55
SLIDE 55
  • S. Su
20
  • MSSM: need large loop correction from stop sector
slide-56
SLIDE 56
  • S. Su
20
  • MSSM: need large loop correction from stop sector

heavy stops (with large LR mixing): fine-tuning

slide-57
SLIDE 57
  • S. Su
20
  • MSSM: need large loop correction from stop sector

heavy stops (with large LR mixing): fine-tuning tree level mh0 < mZ

slide-58
SLIDE 58
  • S. Su
20
  • MSSM: need large loop correction from stop sector

heavy stops (with large LR mixing): fine-tuning tree level mh0 < mZ

φ ν −ν V (φ)

V (⌥) = +µ2⌥†⌥ + ⇤(⌥†⌥)2.

s M2

H = −2µ2 = 2λv2
slide-59
SLIDE 59
  • S. Su
20
  • MSSM: need large loop correction from stop sector

heavy stops (with large LR mixing): fine-tuning tree level mh0 < mZ

φ ν −ν V (φ)

V (⌥) = +µ2⌥†⌥ + ⇤(⌥†⌥)2.

s M2

H = −2µ2 = 2λv2

λ= (g12+g22)/8

slide-60
SLIDE 60
  • S. Su
20
  • MSSM: need large loop correction from stop sector

heavy stops (with large LR mixing): fine-tuning tree level mh0 < mZ

φ ν −ν V (φ)

V (⌥) = +µ2⌥†⌥ + ⇤(⌥†⌥)2.

s M2

H = −2µ2 = 2λv2

λ= (g12+g22)/8 add another singlet S ⇒ NMSSM

slide-61
SLIDE 61
  • S. Su
21

NMSSM Higgs Sector

  • ๏ Type II Two Higgs Doublet Model plus singlet S

after EWSB, 7 physical Higgses CP-even Higgses: H1, H2, H3 CP-odd Higgs: A1, A2 Charged Higgses: H± ๏ SSB

v2

u + v2 d = v2 = (246GeV)2

tan β = vu/vd

Hu =   H+

u

H0

u

  , Hd =   H0

d

H−

d

  vu/ √ 2 vd/ √ 2

S → vs/ √ 2

→ (µ = λvs/ √ 2)

WNMSSM = Yuˆ uc ˆ Hu ˆ Q + Yd ˆ dc ˆ Hd ˆ Q + Yeˆ ec ˆ Hd ˆ L + ⇤ ˆ S ˆ Hu ˆ Hd + 1 3⇥ ˆ S3

VH,Soft = m2

HuH† uHu + m2 HdH† dHd + M2 S|S|2 +
  • ⇤Aλ(HT
t Hd)S + 1

3⇥AκS3 + c.c. ⇥ ⌃

slide-62
SLIDE 62
  • S. Su
22

NMSSM: Masses for Higgses

  • ๏ Effects of singlet
  • lift (mhv)tree, small tanβ, large λ
  • mixing with singlet: change HiWW/ZZ, Hibb, Higg, Hiγγ

๏ Lots of work on (125 GeV) Higgs in NMSSM framework ...

Gunion et. al, 1201.0982 Ellwanger 1112.3548 King et. al., 1201.2671 Cao et. al., 1202.5821 EllWanger et. al., 1203.5048 Benbrik et. al., 1207.1096 Gunion et. al., 1207.1545 Gunion et. al., 1208.1817 Cheng et. al., 1207.6392 Belanger et. al., 1208.4952 Agashe et. al., 1209.2115 Belanger et. al., 1210.1976

๏ H3 heavy, mA large ๏ H1 126 or H2 126 ๏ hv/S mixing

Heng, 1210.3751 Choi et. al., 1211.0875 King et. al., 1211.5074 Dreiner et. al., 1211.6987 Das et. al., 1301.7548 ... many other Jack’s, Ellwanger’s paper ... (incomplete list)

(m2

hv)tree = m2 Z cos2 2β + 1

2(λv)2 sin2 2β

slide-63
SLIDE 63
  • S. Su
23

NMSSM: mA decouple case

  • ๏ push down: mhv < mS

hv hv S S ๏ H1 (SM-like) still heavy enough ≥ 124 GeV ⇒ not too large mass mixing (to push down mH1 too low) hv hv S S ๏ H1 (singlet-like) not ruled out by LEP ⇒ not too large state mixing (to have too much H1ZZ coupling) ๏ push up: mhv > mS

Agashe et. al., 1209.2115
slide-64
SLIDE 64
  • S. Su
23

NMSSM: mA decouple case

  • ๏ push down: mhv < mS

hv hv S S ๏ H1 (SM-like) still heavy enough ≥ 124 GeV ⇒ not too large mass mixing (to push down mH1 too low) hv hv S S ๏ H1 (singlet-like) not ruled out by LEP ⇒ not too large state mixing (to have too much H1ZZ coupling) ๏ push up: mhv > mS

Agashe et. al., 1209.2115

Need some tuning to make it work (without too much help from stops)

slide-65
SLIDE 65
  • S. Su

Our work: Focus on the NMSSM low mA region: mA ≤ 2 mZ

NMSSM: Masses for Higgses

All Higgses light

  • could have large mixing effects
  • can be probed experimentally
slide-66
SLIDE 66
  • S. Su

Our work: Focus on the NMSSM low mA region: mA ≤ 2 mZ

NMSSM: Masses for Higgses

All Higgses light

  • could have large mixing effects
  • can be probed experimentally

decoupling region non-decoupling region ๏ h0 SM-like: large mA ≥ 300 GeV ๏ small mA ~ mZ: H0 SM-like

slide-67
SLIDE 67
  • S. Su

Our work: Focus on the NMSSM low mA region: mA ≤ 2 mZ

NMSSM: Masses for Higgses

All Higgses light

  • could have large mixing effects
  • can be probed experimentally

decoupling region non-decoupling region ๏ h0 SM-like: large mA ≥ 300 GeV ๏ small mA ~ mZ: H0 SM-like both are not necessary true in NMSSM

slide-68
SLIDE 68
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

slide-69
SLIDE 69
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv h

h

h

slide-70
SLIDE 70
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv h

h

h

slide-71
SLIDE 71
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv h

h

h

slide-72
SLIDE 72
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv

h

slide-73
SLIDE 73
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv

slide-74
SLIDE 74
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv

slide-75
SLIDE 75
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv

slide-76
SLIDE 76
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv

could be realized

slide-77
SLIDE 77
  • S. Su

NMSSM non-decoupling cases

Hv Hv hv hv MSSM MSSM

H1-126 H1-126 H2-126 H2-126 H3-126 H3-126 S hv hv hv Hv Hv Hv S S S S S hv Hv Hv hv Hv hv

could be realized hard to realized

slide-78
SLIDE 78
  • S. Su
26
  • N. Christensen, T. Han, Z. Liu, SS (2013)

๏ H1 126 GeV ๏ H2 126 GeV

H1-126 H1-126 S S hv Hv Hv hv
  • 126
H2-126 H2-126 S hv Hv S Hv hv

NMSSM Higgs

slide-79
SLIDE 79
  • S. Su
27
  • ๏ σγγ vs σWW

๏ BrWW vs Brbb H2 → H1 H1

  • grey: pass exp
  • pink: 124 < mH2 < 128 GeV
  • green, red, purple, black: satisfy σXBr(γγ, WW)
  • H2 region IA, mH1>mH2/2, |ξH2hv|2>0.5
  • H2 region IB, mH1>mH2/2, |ξH2hv|2<0.5
  • H2 region II, mH1<mH2/2, H2 →H1H1
  • black: perturbativity till mGUT

NMSSM Higgs

  • N. Christensen, T. Han, Z. Liu, SS (2013)
slide-80
SLIDE 80
  • S. Su
27
  • ๏ σγγ vs σWW

๏ BrWW vs Brbb H2 → H1 H1

  • grey: pass exp
  • pink: 124 < mH2 < 128 GeV
  • green, red, purple, black: satisfy σXBr(γγ, WW)
  • H2 region IA, mH1>mH2/2, |ξH2hv|2>0.5
  • H2 region IB, mH1>mH2/2, |ξH2hv|2<0.5
  • H2 region II, mH1<mH2/2, H2 →H1H1
  • black: perturbativity till mGUT

NMSSM Higgs

  • N. Christensen, T. Han, Z. Liu, SS (2013)

large exotic HSM decay

slide-81
SLIDE 81
  • S. Su
28
  • Generic 2HDM
V (Φ1, Φ2) = m2 11Φ† 1Φ1 + m2 22Φ† 2Φ2 − (m2 12Φ† 1Φ2 + h.c.) 1 1 11 1 22 2 − 12 1 +1 2λ1(Φ† 1Φ1)2 + 1 2λ2(Φ† 2Φ2)2 + λ3(Φ† 1Φ1)(Φ† 2Φ2) ⇤ ⌅ 2 2 +λ4(Φ† 1Φ2)(Φ† 2Φ1) + ⇤1 2λ5(Φ† 1Φ2)2 + h.c. ⌅ ⇤
  • ⇥
⌅ ⇤ 2 ⌅ + ⇤ λ6
  • (Φ†
1Φ1) + λ7(Φ† 2Φ2) ⇥ (Φ† 1Φ2) + h.c. ⌅ .

after EWSB, 5 physical Higgses CP-even Higgses: h0, H0 CP-odd Higgs: A0 Charged Higgses: H±

slide-82
SLIDE 82
  • S. Su
29

h0 126 GeV: sin(β-α)

  • )

α

  • β

sin(

  • 1

1 β tan 5 [GeV] [GeV]

A

m 500 [GeV]

+ H

m 500

  • B. Coleppa, F. Kling and SS (2013)
slide-83
SLIDE 83
  • S. Su
29

h0 126 GeV: sin(β-α)

  • )

α

  • β

sin(

  • 1

1 β tan 5 [GeV] [GeV]

A

m 500 [GeV]

+ H

m 500

  • B. Coleppa, F. Kling and SS (2013)

masses are less correlated

slide-84
SLIDE 84
  • S. Su
30
  • II. Higgs assisted new physics search
slide-85
SLIDE 85
  • S. Su
31
  • Mass scales [GeV]
200 400 600 800 1000 1200 χ ∼ l → l ~ χ ∼ χ ∼ ν τ ll → ± χ ∼ 2 χ ∼ χ ∼ χ ∼ W Z → 2 χ ∼ ± χ ∼ χ ∼ χ ∼ ν ν
  • l
+ l →
  • χ
∼ + χ ∼ χ ∼ χ ∼ ν τ τ τ → ± χ ∼ 2 χ ∼ χ ∼ χ ∼ ν lll → ± χ ∼ 2 χ ∼ χ ∼ bZ → b ~ χ ∼ tW → b ~ χ ∼ b → b ~ ) χ ∼ W → + χ ∼ b( → t ~ ) χ ∼ W → + χ ∼ b( → t ~ χ ∼ t → t ~ χ ∼ t → t ~ χ ∼ q → q ~ χ ∼ q → q ~ χ ∼ btW → g ~ ) χ ∼ γ → 2 χ ∼ qq( → g ~ ) χ ∼ W → ± χ ∼ | χ ∼ γ → 2 χ ∼ qq( → g ~ ) χ ∼ Z → 2 χ ∼ qq ( → g ~ ) χ ∼ ν ± l → ± χ ∼ qq( → g ~ ) χ ∼ t → t ~ t( → g ~ ) χ ∼ | χ ∼ W → ± χ ∼ qq( → g ~ ) χ ∼ | χ ∼ τ τ → 2 χ ∼ qq( → g ~ ) χ ∼
  • l
+ l → 2 χ ∼ qq ( → g ~ χ ∼ tt → g ~ χ ∼ bb → g ~ χ ∼ qq → g ~ χ ∼ qq → g ~ SUS-12-022 L=9.20 /fb SUS-13-008 L=19.50 /fb SUS-13-011 L=19.50 /fb x = 0.25 x = 0.50 x = 0.75 SUS-13-008 L=19.50 /fb SUS-12-001 L=4.93 /fb SUS-11-010 L=4.98 /fb SUS-12-022 L=9.20 /fb x = 0.05 x = 0.50 x = 0.95 SUS-12-022 L=9.20 /fb SUS-12-028 L=11.70 /fb SUS-12-028 L=11.70 /fb SUS-13-007 SUS-13-008 L=19.40 19.50 /fb SUS-12-024 SUS-12-028 L=19.40 11.70 /fb SUS-12-001 L=4.93 /fb SUS-12-028 L=11.70 /fb SUS-12-005 SUS-11-024 L=4.70 /fb SUS-13-008 SUS-12-017 L=19.50 10.50 /fb SUS-12-005 SUS-11-024 L=4.70 /fb SUS-12-004 L=4.98 /fb SUS-12-022 L=9.20 /fb SUS-11-011 L=4.98 /fb SUS-13-008 L=19.50 /fb SUS-13-011 L=19.50 /fb left-handed top unpolarized top right-handed top SUS-11-024 SUS-12-005 L=4.70 /fb SUS-11-021 SUS-12-002 L=4.98 4.73 /fb x = 0.25 x = 0.50 x = 0.75 SUS-12-022 L=9.20 /fb x = 0.05 x = 0.50 x = 0.95 SUS-12-010 L=4.98 /fb x = 0.25 x = 0.50 x = 0.75 SUS-12-022 L=9.20 /fb SUS-11-030 L=4.98 /fb gluino production squark stop sbottom EWK gauginos slepton Summary of CMS SUSY Results* in SMS framework CMS Preliminary m(mother)-m(LSP)=200 GeV m(LSP)=0 GeV LHCP 2013 = 7 TeV s = 8 TeV s lsp m ⋅
  • (1-x)
mother m ⋅ = x intermediate m For decays with intermediate mass, Only a selection of available mass limits *Observed limits, theory uncertainties not included Probe *up to* the quoted mass limit

LHC SUSY Search limits (CMS)

slide-86
SLIDE 86
  • S. Su
31
  • Mass scales [GeV]
200 400 600 800 1000 1200 χ ∼ l → l ~ χ ∼ χ ∼ ν τ ll → ± χ ∼ 2 χ ∼ χ ∼ χ ∼ W Z → 2 χ ∼ ± χ ∼ χ ∼ χ ∼ ν ν
  • l
+ l →
  • χ
∼ + χ ∼ χ ∼ χ ∼ ν τ τ τ → ± χ ∼ 2 χ ∼ χ ∼ χ ∼ ν lll → ± χ ∼ 2 χ ∼ χ ∼ bZ → b ~ χ ∼ tW → b ~ χ ∼ b → b ~ ) χ ∼ W → + χ ∼ b( → t ~ ) χ ∼ W → + χ ∼ b( → t ~ χ ∼ t → t ~ χ ∼ t → t ~ χ ∼ q → q ~ χ ∼ q → q ~ χ ∼ btW → g ~ ) χ ∼ γ → 2 χ ∼ qq( → g ~ ) χ ∼ W → ± χ ∼ | χ ∼ γ → 2 χ ∼ qq( → g ~ ) χ ∼ Z → 2 χ ∼ qq ( → g ~ ) χ ∼ ν ± l → ± χ ∼ qq( → g ~ ) χ ∼ t → t ~ t( → g ~ ) χ ∼ | χ ∼ W → ± χ ∼ qq( → g ~ ) χ ∼ | χ ∼ τ τ → 2 χ ∼ qq( → g ~ ) χ ∼
  • l
+ l → 2 χ ∼ qq ( → g ~ χ ∼ tt → g ~ χ ∼ bb → g ~ χ ∼ qq → g ~ χ ∼ qq → g ~ SUS-12-022 L=9.20 /fb SUS-13-008 L=19.50 /fb SUS-13-011 L=19.50 /fb x = 0.25 x = 0.50 x = 0.75 SUS-13-008 L=19.50 /fb SUS-12-001 L=4.93 /fb SUS-11-010 L=4.98 /fb SUS-12-022 L=9.20 /fb x = 0.05 x = 0.50 x = 0.95 SUS-12-022 L=9.20 /fb SUS-12-028 L=11.70 /fb SUS-12-028 L=11.70 /fb SUS-13-007 SUS-13-008 L=19.40 19.50 /fb SUS-12-024 SUS-12-028 L=19.40 11.70 /fb SUS-12-001 L=4.93 /fb SUS-12-028 L=11.70 /fb SUS-12-005 SUS-11-024 L=4.70 /fb SUS-13-008 SUS-12-017 L=19.50 10.50 /fb SUS-12-005 SUS-11-024 L=4.70 /fb SUS-12-004 L=4.98 /fb SUS-12-022 L=9.20 /fb SUS-11-011 L=4.98 /fb SUS-13-008 L=19.50 /fb SUS-13-011 L=19.50 /fb left-handed top unpolarized top right-handed top SUS-11-024 SUS-12-005 L=4.70 /fb SUS-11-021 SUS-12-002 L=4.98 4.73 /fb x = 0.25 x = 0.50 x = 0.75 SUS-12-022 L=9.20 /fb x = 0.05 x = 0.50 x = 0.95 SUS-12-010 L=4.98 /fb x = 0.25 x = 0.50 x = 0.75 SUS-12-022 L=9.20 /fb SUS-11-030 L=4.98 /fb gluino production squark stop sbottom EWK gauginos slepton Summary of CMS SUSY Results* in SMS framework CMS Preliminary m(mother)-m(LSP)=200 GeV m(LSP)=0 GeV LHCP 2013 = 7 TeV s = 8 TeV s lsp m ⋅
  • (1-x)
mother m ⋅ = x intermediate m For decays with intermediate mass, Only a selection of available mass limits *Observed limits, theory uncertainties not included Probe *up to* the quoted mass limit

LHC SUSY Search limits (CMS)

slide-87
SLIDE 87
  • S. Su
32

CMS limits

  • dilepton/trilepton + MET

[GeV]

2 ! "

= m

± 1 ! "

m

100 200 300 400 500 600 700

[GeV]

1 ! "

m

200 400 600 800

LEP2 slepton limit LEP2 chargino limit )=0.5)
  • l
+ l , BF( L l ~ , ( ± 1 ! " 2 ! " # pp )=1)
  • l
+ l , BF( R l ~ , ( ± 1 ! " 2 ! " # pp , BF(WZ)=1) l ~ , ( no ± 1 ! " 2 ! " # pp )=1)
  • l
+ l , BF( L l ~ , (
  • 1
! " + 1 ! " # pp
  • 1
= 9.2 fb int = 8 TeV, L s CMS Preliminary 1 ! " + 0.5m ± 1 ! " = 0.5m l ~ m 1 ! " > m ± 1 ! " = m 2 ! " m CMS PAS SUS-12-022
slide-88
SLIDE 88
  • S. Su
32

CMS limits

  • dilepton/trilepton + MET

[GeV]

2 ! "

= m

± 1 ! "

m

100 200 300 400 500 600 700

[GeV]

1 ! "

m

200 400 600 800

LEP2 slepton limit LEP2 chargino limit )=0.5)
  • l
+ l , BF( L l ~ , ( ± 1 ! " 2 ! " # pp )=1)
  • l
+ l , BF( R l ~ , ( ± 1 ! " 2 ! " # pp , BF(WZ)=1) l ~ , ( no ± 1 ! " 2 ! " # pp )=1)
  • l
+ l , BF( L l ~ , (
  • 1
! " + 1 ! " # pp
  • 1
= 9.2 fb int = 8 TeV, L s CMS Preliminary 1 ! " + 0.5m ± 1 ! " = 0.5m l ~ m 1 ! " > m ± 1 ! " = m 2 ! " m CMS PAS SUS-12-022

lepton rich final states to enhance reach: only works for Wino NLSP with light slepton_L. Limits weaker for ๏ slepton_L heavy ๏ χ20,χ1± being Higgsinos ๏ small mχ1± - mχ10

slide-89
SLIDE 89
  • S. Su
32

CMS limits

  • dilepton/trilepton + MET

[GeV]

2 ! "

= m

± 1 ! "

m

100 200 300 400 500 600 700

[GeV]

1 ! "

m

200 400 600 800

LEP2 slepton limit LEP2 chargino limit )=0.5)
  • l
+ l , BF( L l ~ , ( ± 1 ! " 2 ! " # pp )=1)
  • l
+ l , BF( R l ~ , ( ± 1 ! " 2 ! " # pp , BF(WZ)=1) l ~ , ( no ± 1 ! " 2 ! " # pp )=1)
  • l
+ l , BF( L l ~ , (
  • 1
! " + 1 ! " # pp
  • 1
= 9.2 fb int = 8 TeV, L s CMS Preliminary 1 ! " + 0.5m ± 1 ! " = 0.5m l ~ m 1 ! " > m ± 1 ! " = m 2 ! " m CMS PAS SUS-12-022

100% WZ Br -- Usually not realized!

slide-90
SLIDE 90
  • S. Su
33

MSSM EW-ino sector 101

  • ๏ Gauginos and Higgsinos
  • Neutral ones: Bino, Wino, Hu0, Hd0
  • charged ones: Winos, Hu+, Hd-

๏ Parameters: M1, M2, µ, tanβ ~ ~ ~ ~ ๏ Neutralinos and charginos

slide-91
SLIDE 91
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ
1

χ1± χ

2

χ10 W± χ10 Z

slide-92
SLIDE 92
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z

slide-93
SLIDE 93
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z χ1± χ20 χ10 χ10 h χ10 Z

slide-94
SLIDE 94
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z χ1± χ20 χ10 χ10 h χ10 Z χ1± W

slide-95
SLIDE 95
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z χ1± χ20 χ10 χ10 h χ10 Z χ1± W χ

10

χ1± χ20 χ30 χ2± χ10 h χ10 Z χ1± W

slide-96
SLIDE 96
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z χ1± χ20 χ10 χ10 h χ10 Z χ1± W χ

10

χ1± χ20 χ30 χ2± χ10 h χ10 Z χ1± W χ10 W

slide-97
SLIDE 97
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z χ1± χ20 χ10 χ10 h χ10 Z χ1± W χ

10

χ1± χ20 χ30 χ2± χ10 h χ10 Z χ1± W χ10 W χ1± h χ1± Z

slide-98
SLIDE 98
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z χ1± χ20 χ10 χ10 h χ10 Z χ1± W

A rich mixture of (W/Z/h)(W/Z/h)+MET final states!

χ

10

χ1± χ20 χ30 χ2± χ10 h χ10 Z χ1± W χ10 W χ1± h χ1± Z

slide-99
SLIDE 99
  • S. Su
34

Decay of heavy neutralino and chargino

  • χ10 h

χ

1

χ1± χ

2

χ10 W± χ10 Z χ1± χ20 χ10 χ10 h χ10 Z χ1± W

A rich mixture of (W/Z/h)(W/Z/h)+MET final states!

χ

10

χ1± χ20 χ30 χ2± χ10 h χ10 Z χ1± W χ10 W χ1± h χ1± Z

Gunion et. al., Int. J. Mod. Phys. A2 (1987) 1145 Gunion and Haber, PRD 37 (1988) 2515 Bartl et. al., PLB 216 (1989) 233 Djouadi et. al., hep-ph/0104115 Datta et. al., hep-ph/0303095 Huitu et. al., arXiv: 0808.3094 Gori et. al., arXiv: 1103.4138 Stal and Weiglein, arXiv: 1108.0595 Baer et. al., arXiv: 1201.2949 Ghosh et. al., arXiv:1202.4937 Howe and Saraswat, arXiv: 1208.1542 Arbey et. al., arXiv: 1212.6865,
  • T. Han, S. Padhi and SS, to appear...
slide-100
SLIDE 100
  • S. Su
35

Six cases

  • Case AI: Bino LSP-Wino NLSP M1 < M2 < µ

Case AII: Bino LSP-Higgsino NLSP M1 < µ < M2 Case BI: Wino LSP-Bino NLSP M2 < M1 < µ Case BII: Wino LSP-Higgsino NLSP M2 < µ < M1 Case CI: Higgsino LSP-Bino NLSP µ < M1 < M2 Case CII: Higgsino LSP-Wino NLSP µ < M2 < M1 LSP(s): usual LSP+degenerate states NLSP(s): 2nd set low-lying (degenerate) states

slide-101
SLIDE 101
  • S. Su
35

Six cases

  • Case AI: Bino LSP-Wino NLSP M1 < M2 < µ

Case AII: Bino LSP-Higgsino NLSP M1 < µ < M2 Case BI: Wino LSP-Bino NLSP M2 < M1 < µ Case BII: Wino LSP-Higgsino NLSP M2 < µ < M1 Case CI: Higgsino LSP-Bino NLSP µ < M1 < M2 Case CII: Higgsino LSP-Wino NLSP µ < M2 < M1 LSP(s): usual LSP+degenerate states NLSP(s): 2nd set low-lying (degenerate) states

slide-102
SLIDE 102
  • S. Su
35

Six cases

  • Case AI: Bino LSP-Wino NLSP M1 < M2 < µ

Case AII: Bino LSP-Higgsino NLSP M1 < µ < M2 Case BI: Wino LSP-Bino NLSP M2 < M1 < µ Case BII: Wino LSP-Higgsino NLSP M2 < µ < M1 Case CI: Higgsino LSP-Bino NLSP µ < M1 < M2 Case CII: Higgsino LSP-Wino NLSP µ < M2 < M1 Small NLSP production at LHC: unobservable nearly degenerate LSP pair productions at ILC: Unique opportunity! LSP(s): usual LSP+degenerate states NLSP(s): 2nd set low-lying (degenerate) states

slide-103
SLIDE 103
  • S. Su
36
slide-104
SLIDE 104
  • S. Su
37
  • Case AI: Bino LSP - Wino NLSP

χ1± decay 100% via on/off-shell W

100 200 300 400 500 10 −2 10 −1 10 χ1 0 h χ1 0 Z M2 (GeV) Br (%) χ2 0 decay: M1< M2 < µ
  • T. Han, S. Padhi, SS (2013)
slide-105
SLIDE 105
  • S. Su
37
  • Case AI: Bino LSP - Wino NLSP

χ1± decay 100% via on/off-shell W

100 200 300 400 500 10 −2 10 −1 10 χ1 0 h χ1 0 Z M2 (GeV) Br (%) χ2 0 decay: M1< M2 < µ
  • T. Han, S. Padhi, SS (2013)

decay to h dominates over decay to Z !

slide-106
SLIDE 106
  • S. Su
38

Productions

  • q
¯ q W χ± i χ0 j (a) q ¯ q γ/Z χ+ i χ− j (b) q ¯ q Z χ0 i χ0 j (c)

Dominant production: ๏ Wino pair production: cha-cha, cha-neu ๏ Higgsino pair production: cha-cha, cha-neu, neu-neu

σtot

XY =
  • i,j

σ(χiχj) × Br(χiχj → XY ), XY = W +W −, W ±W ±, WZ, Wh, Zh, ZZ, and hh.

slide-107
SLIDE 107
  • S. Su
38

Productions

  • q
¯ q W χ± i χ0 j (a) q ¯ q γ/Z χ+ i χ− j (b) q ¯ q Z χ0 i χ0 j (c)

Dominant production: ๏ Wino pair production: cha-cha, cha-neu ๏ Higgsino pair production: cha-cha, cha-neu, neu-neu

ILC

σtot

XY =
  • i,j

σ(χiχj) × Br(χiχj → XY ), XY = W +W −, W ±W ±, WZ, Wh, Zh, ZZ, and hh.

slide-108
SLIDE 108
  • S. Su
39

Productions: Bino LSP

  • 200
400 600 800 1000 10 −4 10 −3 10 −2 10 −1 10 M2 (GeV) σ (pb) Case AI W±h W±Z W+W− 200 400 600 800 1000 10 −4 10 −3 10 −2 10 −1 10 µ (GeV) σ (pb) Case AII W±h W±Z W+W− Zh ZZ hh
  • T. Han, S. Padhi, SS (2013)
slide-109
SLIDE 109
  • S. Su
39

Productions: Bino LSP

  • 200
400 600 800 1000 10 −4 10 −3 10 −2 10 −1 10 M2 (GeV) σ (pb) Case AI W±h W±Z W+W− 200 400 600 800 1000 10 −4 10 −3 10 −2 10 −1 10 µ (GeV) σ (pb) Case AII W±h W±Z W+W− Zh ZZ hh

๏ Br(WZ) < 100%, sometime highly suppressed ๏ Wh complementary to WZ channel: new discovery potential ๏ Zh could also be important ๏ hh usually is small

  • T. Han, S. Padhi, SS (2013)
slide-110
SLIDE 110
  • S. Su
40

LHC/ILC searches

  • Channel Signal (LHC)

Signal (ILC) W+W- OS2L + MET hadronic (4j), semileptonic, W±W± SS2L + MET hadronic (4j), semileptonic, leptonic final WZ 3L + MET leptonic final states +MT Wh 1L + bb + MET states +MT Zh OS2l +bb + MET LSP pair ISR photon + soft

slide-111
SLIDE 111
  • S. Su
40

LHC/ILC searches

  • Channel Signal (LHC)

Signal (ILC) W+W- OS2L + MET hadronic (4j), semileptonic, W±W± SS2L + MET hadronic (4j), semileptonic, leptonic final WZ 3L + MET leptonic final states +MT Wh 1L + bb + MET states +MT Zh OS2l +bb + MET LSP pair ISR photon + soft

slide-112
SLIDE 112
  • S. Su
40

LHC/ILC searches

  • Channel Signal (LHC)

Signal (ILC) W+W- OS2L + MET hadronic (4j), semileptonic, W±W± SS2L + MET hadronic (4j), semileptonic, leptonic final WZ 3L + MET leptonic final states +MT Wh 1L + bb + MET states +MT Zh OS2l +bb + MET LSP pair ISR photon + soft Wh and Zh channels comparable/complementary to WW, WZ channels!

slide-113
SLIDE 113
  • S. Su
40

LHC/ILC searches

  • Channel Signal (LHC)

Signal (ILC) W+W- OS2L + MET hadronic (4j), semileptonic, W±W± SS2L + MET hadronic (4j), semileptonic, leptonic final WZ 3L + MET leptonic final states +MT Wh 1L + bb + MET states +MT Zh OS2l +bb + MET LSP pair ISR photon + soft Wh and Zh channels comparable/complementary to WW, WZ channels!

LHC-ILC complementarity

slide-114
SLIDE 114
  • S. Su
41
  • Neutralino/Chargino search

DRAF

WH WZ

  • T. Han, S. Padhi, SS (2013)
slide-115
SLIDE 115
  • S. Su
41
  • Neutralino/Chargino search

DRAF

WH WZ

  • T. Han, S. Padhi, SS (2013)

Unique signal ! Wh complementary to WZ channels !

slide-116
SLIDE 116
  • S. Su
42
  • III. Exotic decay of non-SM Higgs

๏ Conventional search channel (even for non-SM Higgs): γγ, ZZ, WW, ττ, bb

See talk by Vicky (ATLAS) and Rangel (CMS) on BSM Higgs searches

๏ New Higgs decay modes open for (non-)SM Higgs decay

slide-117
SLIDE 117
  • S. Su
43
  • Searching for Other Higgses

New channels open up for non-SM Higgs decay

HH type (bb/ττ/WW/ZZ)(bb/ττ/WW/ZZ) hSM ➞ AA, H ➞ hSM hSM, H ➞ AA, Ai ➞ HjAk,... H+H- type (τν/tb)(τν/tb) H/A ➞ H+H- ZH type (ll/qq/νν)(bb/ττ/WW/ZZ) hSM ➞ ZA, A➞ ZhSM, ... WH± type (lν/qq’) (τν/tb) H/A➞ WH± WH type (lν/qq’)(bb/ττ/WW/ZZ) tH± production, H±➞ WH H±➞ WA

slide-118
SLIDE 118
  • S. Su
43
  • Searching for Other Higgses

New channels open up for non-SM Higgs decay

HH type (bb/ττ/WW/ZZ)(bb/ττ/WW/ZZ) hSM ➞ AA, H ➞ hSM hSM, H ➞ AA, Ai ➞ HjAk,... H+H- type (τν/tb)(τν/tb) H/A ➞ H+H- ZH type (ll/qq/νν)(bb/ττ/WW/ZZ) hSM ➞ ZA, A➞ ZhSM, ... WH± type (lν/qq’) (τν/tb) H/A➞ WH± WH type (lν/qq’)(bb/ττ/WW/ZZ) tH± production, H±➞ WH H±➞ WA

slide-119
SLIDE 119
  • S. Su
44
  • Searching for Other Higgses
200 250 300 350 400 450 500 10 10 1 10 2 MA (GeV) σ × BR limit (gg → A → HZ → bbll) (fb) 95% C.L. Exclusion mH=50 GeV mH=125 GeV mH=200 GeV 200 250 300 350 400 450 500 10 10 1 10 2 MA (GeV) σ × BR limit (gg → A → HZ → bbll) (fb) 5σ discovery mH=50 GeV mH=125 GeV mH=200 GeV
  • B. Coleppa, F. Kling, SS (2013)

300 fb-1

slide-120
SLIDE 120
  • S. Su
44
  • Searching for Other Higgses
200 250 300 350 400 450 500 10 10 1 10 2 MA (GeV) σ × BR limit (gg → A → HZ → bbll) (fb) 95% C.L. Exclusion mH=50 GeV mH=125 GeV mH=200 GeV 200 250 300 350 400 450 500 10 10 1 10 2 MA (GeV) σ × BR limit (gg → A → HZ → bbll) (fb) 5σ discovery mH=50 GeV mH=125 GeV mH=200 GeV
  • B. Coleppa, F. Kling, SS (2013)

improved reach for mA < 350 GeV 300 fb-1

slide-121
SLIDE 121
  • S. Su
45
  • We found Higgs Great!
slide-122
SLIDE 122
  • S. Su
45
  • We found Higgs Great!
slide-123
SLIDE 123
  • S. Su
45
  • We found Higgs Great!
slide-124
SLIDE 124
  • S. Su
45
  • We found Higgs Great!

Or

slide-125
SLIDE 125
  • S. Su
45
  • We found Higgs Great!

Or

slide-126
SLIDE 126
  • S. Su
45
  • We found Higgs Great!

Or

slide-127
SLIDE 127
  • S. Su
45
  • We found Higgs Great!

Higgs

friends stop, ... syblings H,A,H±, ... partners Higgsinos ...

slide-128
SLIDE 128
  • S. Su
45
  • We found Higgs Great!

Higgs

friends stop, ... syblings H,A,H±, ... partners Higgsinos ...

Road ahead us Brighter!!!