SciBooNE Experiment Hide-Kazu TANAKA Columbia University / MIT - PowerPoint PPT Presentation

SciBooNE Experiment Hide-Kazu TANAKA Columbia University / MIT Rencontres de Moriond EW, March 13, 2009

Outline • SciBooNE experiment • First results from SciBooNE • Coherent π production measurement • Published in Phys. Rev. D78:112004,2008 • Summary 2

SciBooNE Experiment (K2K- Sci Bar detector at FNAL Boo ster Ne utrino Beam line) Booster ν beamline SciBooNE Decay region MiniBooNE 50 m Detector 440 m 100 m • Precise measurements of neutrino- and Flux (normalized by area) antineutrino-nucleus cross sections ~1 GeV T2K • Essential for neutrino oscillation experiments SciBooNE K2K • MiniBooNE / SciBooNE joint analysis ➜ Search for ν µ disappearance 1 2 E ν (GeV) 3

SciBooNE detector Muon Range Detector (MRD) SciBar • 12 2”-thick steel • Scintillator tracking + scintillator planes detector • measure muon • 14,336 scintillator momentum with range bars (15 tons) • Neutrino target (CH) up to 1.2 GeV/c ν • detect all charged Parts recycled from particles • p/ π separation Past experiment using dE/dx Used in K2K experiment Electron Catcher (EC) 4m • spaghetti calorimeter 2m • 2 planes (11 X 0 ) • identify π 0 and ν e DOE-wide Pollution Prevention Star (P2 Star) Award Used in CHORUS, HARP and K2K 4

SciBooNE Timeline • 2005, Summer - Collaboration formed • 2005, Dec - Proposal approved • 2006, Jul - Ship detectors to FNAL • 2006, Sep - Groundbreaking • 2006, Nov - EC Assembly • 2007, Feb - SciBar Assembly • 2007, Mar - MRD Assembly • 2007, Mar - Cosmic Ray Data • 2007, Apr - Detector Installation Three years • 2007, May - Commissioning from • 2007, Jun - Start data taking ( ν̅ mode) formation to • 2007, Oct - Neutrino Data Run the first results! • 2008, Apr - Antineutrino Data Run • 2008, Aug - Complete data taking • 2008, Aug - SciBooNE decommissioning • 2008, Nov - First physics results 5

Data set Number of Protons on target (POT) Protons on target (x1E20) Delivered For analysis 2.52x10 20 POT in total 2 • neutrino : 0.99x10 20 POT • antineutrino: 1.53x10 20 POT 1 June 2007 August 2008 POT: P rotons O n T arget 0 Jun Jul Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug '07 '08 30 Date Event rate (/4E16 POT) CC event rate in SciBar / POT Results with full neutrino 20 ν data set will be presented in this talk. 10 ν ν 0 Jun Jul Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug '07 '08 Date 6

Physics Topics • ν Charged Current –CC inclusive ( ν µ flux measurement) –CC-QE –CC-1 π + –CC- π 0 –CC- ν e ( ν e flux measurement) • ν Neutral Current –NC- π 0 –NC-elastic • ν ̅ CC analysis • Short-baseline ν µ disappearance search with MiniBooNE 7

Physics Topics • ν Charged Current –CC inclusive ( ν µ flux measurement) –CC-QE CC coherent π production –CC-1 π + ➜ First physics result from SciBooNE –CC- π 0 –CC- ν e ( ν e flux measurement) • ν Neutral Current –NC- π 0 –NC-elastic • ν ̅ CC analysis • Short-baseline ν µ disappearance search with MiniBooNE 7

Physics Topics • ν Charged Current –CC inclusive ( ν µ flux measurement) –CC-QE CC coherent π production –CC-1 π + ➜ First physics result from SciBooNE –CC- π 0 –CC- ν e ( ν e flux measurement) • ν Neutral Current –NC- π 0 –NC-elastic • ν ̅ CC analysis • Short-baseline ν µ disappearance search with MiniBooNE 7

Coherent pion production 26 August 1993 xvutsrqponmlihgedcbaVTSRPONMLKJIHGFECBA Volume 313, number 1,2 PHYSICS LETTERS B • Neutrino interacts with nucleus 300 300 -I I I I I I I I I I I I I I I I ' '' 'I '~ ' 'I ' ' ' ' I ' ~ ℓ 250 250 B&K •Eo200 coherently , producing a pion o E 200 • No nuclear breakup occurs ~b 150 A ~-~" 150 ν % .-~ 100 13 ~ 100 π 50 5O Z Charged Current (CC): ν µ +A → µ+A+ π + i i i l i i i i I i i i I I i , i i I i i i i I i i i I I i 0 50 100 150 0 50 100 150 E ~ [ GeV] Ev [GeV] Neutral Current (NC): ν µ +A →ν µ +A+ π 0 Fig. 5. Visible cross section (En >/ 5 GeV) for coherent single charged plon production for neutrino and antmeutrmo induced interactions. The predictions of the Rein-Sehgal model (full hne) and of the Bel'kov-Kopehovlch model (dashed hne) are indicated i 'i' 500 i i i I i i i I ' ' ' i i i i i i i i i , i s i ν There are several measurements at high 400 E o 300 energy region (E ν : 2~100GeV) in past. o .?, ~ 200 • penment) .I ~ TI x Aachen ~ Padua [1] +Gargamelle[2] 100 4~"t' " • CHARM.L3].. • SKAT (CC) [4] ./~ ¢, SKAT (NC) [4] • BEBC[7] ,, I , , I,,, I ,O,F~A~-[~],, I, ,qF~/~LI9], I , 20 40 60 80 100 120 140 0 20 40 60 80 100 E ν (GeV) E v [GeV] 500 I i I I I I I I i l l II I II I l l i I I I i l l I ν ̅ 400 ~ _ 300 i ~ : b 200 J, )~LJT/"1~. ' .L ~ d u a [1] + Gargamelle [2] 100 • CHARM [3] T i , I i i i I M t , I R M , I r , , I i m r I i i i I i 0 20 40 60 80 100 120 140 0 20 40 60 80 100 E ν ̅ (GeV) E~ [GeV] Plots from Phys.Lett. B313, 267-275 (1993) Fig. 6. Compilation of experiments on coherent single p]on producUon. Shown are the results from both neutral current 8 [ 1-4] and charged current [4-9] data, for neutrino and antmeutrmo reduced interactions. The FNAL [8,9 ] values from combined neutrino and antmeutrmo data have been included m the upper dxagram For this experiment the results for the visible cross section were corrected for the selecUon of En >/ 5 GeV according to the Bel'kov-Kopellov~ch approach. Data from other experiments have been scaled, where necessary, to allow comparison The pred]cuons of the Rem-Sehgal model (full hne) and of the Bel'kov-Kopeliovlch model (dashed hne) are mdxcated. 274

Coherent pion production 26 August 1993 xvutsrqponmlihgedcbaVTSRPONMLKJIHGFECBA Volume 313, number 1,2 PHYSICS LETTERS B • Neutrino interacts with nucleus 300 300 -I I I I I I I I I I I I I I I I ' '' 'I '~ ' 'I ' ' ' ' I ' ~ ℓ 250 250 B&K •Eo200 coherently , producing a pion o E 200 • No nuclear breakup occurs ~b 150 A ~-~" 150 ν % .-~ 100 13 ~ 100 π 50 5O Z Charged Current (CC): ν µ +A → µ+A+ π + i i i l i i i i I i i i I I i , i i I i i i i I i i i I I i 0 50 100 150 0 50 100 150 E ~ [ GeV] Ev [GeV] Neutral Current (NC): ν µ +A →ν µ +A+ π 0 Fig. 5. Visible cross section (En >/ 5 GeV) for coherent single charged plon production for neutrino and antmeutrmo induced interactions. The predictions of the Rein-Sehgal model (full hne) and of the Bel'kov-Kopehovlch model (dashed hne) are indicated i 'i' 500 i i i I i i i I ' ' ' i i i i i i i i i , i s i ν There are several measurements at high 400 E o 300 energy region (E ν : 2~100GeV) in past. o .?, ~ 200 • penment) .I ~ TI x Aachen ~ Padua [1] +Gargamelle[2] 100 4~"t' " • CHARM.L3].. • SKAT (CC) [4] ./~ ¢, SKAT (NC) [4] • BEBC[7] Recent new results at low energy (~1GeV) ,, I , , I,,, I ,O,F~A~-[~],, I, ,qF~/~LI9], I , 20 40 60 80 100 120 140 0 20 40 60 80 100 E ν (GeV) E v [GeV] from K2K and MiniBooNE(MB): 500 I i I I I I I I i l l II I II I l l i I I I i l l I ν ̅ 400 ~ _ 300 i ~ : b 200 J, )~LJT/"1~. ' .L ~ d u a [1] + Gargamelle [2] 100 • CHARM [3] T i , I i i i I M t , I R M , I r , , I i m r I i i i I i 0 20 40 60 80 100 120 140 0 20 40 60 80 100 E ν ̅ (GeV) E~ [GeV] Plots from Phys.Lett. B313, 267-275 (1993) Fig. 6. Compilation of experiments on coherent single p]on producUon. Shown are the results from both neutral current 8 [ 1-4] and charged current [4-9] data, for neutrino and antmeutrmo reduced interactions. The FNAL [8,9 ] values from combined neutrino and antmeutrmo data have been included m the upper dxagram For this experiment the results for the visible cross section were corrected for the selecUon of En >/ 5 GeV according to the Bel'kov-Kopellov~ch approach. Data from other experiments have been scaled, where necessary, to allow comparison The pred]cuons of the Rem-Sehgal model (full hne) and of the Bel'kov-Kopeliovlch model (dashed hne) are mdxcated. 274