Overview of Muon Collider Project Katsuya Yonehara, Fermilab Muon - PowerPoint PPT Presentation

Overview of Muon Collider Project Katsuya Yonehara, Fermilab Muon Physics Workshop ‘08 @RCNP 1

US particle physics Future plan P5 meeting/report (SLAC, FNAL,BNL) Sketch of Integrated Plan (Sept. 18, 2007) LHC including Upgrades, Particle Astrophysics (including Dark Matter and Dark Energy) ILC R&D, EDR, Engineering, Decision, Industrialization, Construction, Running NOvA (0.7 MW) (1.2 MW) NOvA Phase II 0.1 (2.3 MW) baseline ILC large � 13 NOvA Phase II 3 SNuMI � 1 sin 2 2 � 13 l l + Upgrades? a Proj. X R&D +2 yrs m +5 yrs s ILC cavities & Cryomodules, tiny � 13 Longer Baseline Overall Design Project X Large Detector 0.001~0.0001 (Proton Decay) Precision Phase I Precision Phase II extremely tiny � 13 Longer Baseline + � Factory Muon collider R&D for future energy frontier colliders 6D µ cooling + … 4D µ cooling + … works works Young-Kee Kim Jan. 31 – Feb. 2, 2008; P5 Meeting at Fermilab Slide

Reference https://www.bnl.gov/mcdworkshop/ http://www.cap.bnl.gov/mumu/conf/MC-080317 http://www.muonsinc.com/lemc2008/ April 21-25, 2008 Others: P5 meeting, Project X Workshop, MC physics & detector, etc 3

Current & Near Future Experiments Review from E. Eichten’s excellent talks in MC design’08 & LEMC’08 4

Neutrino Factory 5

Muon Collider 6

MC scenario R. Palmer P5 meeting’08 @ BNL Y. Alexahin NFMCC meeting’08 Low Emit: Low # muons/bunch & many bunches High Emit: High # muons/bunch & one bunch RLA plays a key role since it makes a limit of the number of bunches and the number of muons S. Holmes NFMCC meeting’08

SC Linac/Project X All MC scenarios requires ≥ 4 MW CW mode Linac? 50 % longer (16 → 12 MV/m) S. Holmes NFMCC meeting’08 8

Muon collider for rich physics project Conceptual drawing (scales are arbitrary) a. SC LINAC b. Buncher ring c. Tgt/Cpt/Dcy/PR/Cooling d. LE RLA e. Bunch Coalescing ring f. HE RLA g. Collider ring f h. Collider detector g e b a h c d 9

Targetry MERIT experiment K. McDonald, LEMC’08 10

K. McDonald, NFMCC meeting’08 11

Decay/Phase Rotation channel RF needs to operate in magnetic field mu/p ~ 0.19! D. Neuffer, LEMC’08 Does high pressurized GH2 help for this application? K. Paul MCNote-518 12

Ionization cooling D. Neuffer LEMC’08 Emittance exchange Conceptual picture of ionization cooling theory RFOFO channel R. Palmer Helical Cooling Channel S. Derbenev & R. Johnson 13

Cooling Channel FOFO Snake Y. Alexahin MC Design’07 Helical Cooling Channel Super Fernow K. Yonehara LEMC’08 Y. Alexahin MCTF 5/29/08 A. Afanasev LEMC’08 Parametric Ionization Cooling Channel (PIC) Guggenheim P. Snopok LEMC’08 & HTS Cooling Channel Li Lens Cooling Channel R. Palmer MC Design’07 R. Palmer MC Design’07 14 K. Lee LEMC’08

Emittance Evolution in Cooling Section Low Emit scenario MCTF scenario High Emit scenario 402 201 New HCC D. Neuffer LEMC’08 Matching channel is not included Window material is not included All above channels works only one polarity 15

Bunch coalescing ring C. Bhat LEMC’06 16

Coalescing ring for both charges mu- mu + mu- mu+ mu+ mu- mu- mu+ C. Bhat LEMC’08 mu- mu + 17

RLA N. Solyak, S. Yakovlev LEMC’08 These numbers are based on the assumption the number of muons are same as HE scheme. We need to re-estimate them.

Muon Acceleration ILC type acceleration A. Bogacz LEMC’08 S. Berg MC design meeting’07 Fast ramping synchrotron accelerator (400 -> 750 GeV) D. Summers MC design meeting’07 19

Collider Ring Dipole First Muon Collider Lattice Y. Alexahin & E. Wendt LEMC’08 20

MC Detector MC Detector can be similar as ILC (or CLIC) Detector: Same physics! Background, Radiation damage (A. Bross NFMCC’08) S. Kahn LEMC’06 N. Mokhov MC physics & detector Compare with LHC Hadron BG: 3e-7 smaller Instantaneous BG: 0.025 % 21

ILC & CLIC Detector M. Demarteau LEMC’08 22

Radiation Hazards K. Paul Muons, Inc DB The depth is determined by the number of muons per bunch C. Johnstone LEMC’08 23

MERIT K. McDonald, LEMC’08 24

Collaboration list 25

Conclusion MC project becomes higher priority Design study based on simulation We have many good ideas Let us keep moving to have real physics events!! 26