MAP Overview + - m m n Steve Geer Accelerator Physics Center Fermi National Accelerator Laboratory MAP Winter Meeting JLab, February 28, 2011 MAP MISSION STATEMENT The mission of the Muon Accelerator Program (MAP) is to develop and demonstrate the concepts and critical technologies required to produce, capture, condition, accelerate, and store intense beams of muons for Muon Colliders and Neutrino Factories. The goal of MAP is to deliver results that will permit the highenergy physics community to make an informed choice of the optimal path to a high-energy lepton collider and/ or a next-generation neutrino beam facility.
Coordination with the parallel Muon Collider Physics and Detector Study and with the International Design Study of a Neutrino Factory will ensure MAP responsiveness to physics requirements. STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 2 MUON COLLIDER MOTIVATION If we can build a muon collider, it is an attractive multiTeV lepton collider option because muons dont radiate as readily as electrons (mm / me ~ 207): A 4 TeV Muon Collider would PHYSICS COST - COMPACT fit on the Fermilab Site Fits on laboratory site
- MULTI-PASS ACCELERATION Cost Effective operation & construction - MULTIPASS COLLISIONS IN A RING (~1000 turns) Relaxed emittance requirements & hence relaxed tolerances - NARROW ENERGY SPREAD Precision scans, kinematic constraints - TWO DETECTORS (2 IPs) - DDTbunch ~ 10 ms (e.g. 4 TeV collider) Lots of time for readout Backgrounds dont pile up - (mm/me)2 = ~40000 Enhanced s-channel rates for Higgs-like particles STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 3 ENERGY SPREAD
Beamstrahlung in any e+e- collider E/E 2 STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 4 NEUTRINO FACTORY MOTIVATION Mono-energetic muon decays would produce a unique neutrino beam consisting of 50% Dne(ne) & 50% nm(nm) very well known fluxes & spectrum hence low systematic uncertainties NF NF 0.2 Con vent
iona l Bea ms 0.4 NF Conventi ona 0.6 CPV l Beams tional B eams 0.8 MASS HIERARCHY Conve n Fraction of
sin22q13 0 10-4 10-3 10-2 10-4 10-3 10-2 10-4 10-3 10-2 sin22q13 If q13 small, a 25 GeV NF (above) has exquisite sensitivity. If q13 large, a ~5 GeV NF offers exquisite precision. STEVE GEER MAP WINTER MEETING JLab 28 February, 2011
5 CHALLENGES Muons are produced as tertiary particles. To make enough of them we must start with a MW scale proton source & target facility. Muons decay everything must be done fast and we must deal with the decay electrons (& neutrinos for CM energies above ~3 TeV). Muons are born within a large 6D phase-space. For a MC we must cool them by O(106) before they decay New cooling technique (ionization cooling) must be demonstrated, and it requires components with demanding performance (NCRF in magnetic channel, high field solenoids.) After cooling, beams still have relatively large emittance. STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 6 Muon Collider cf. Neutrino Factory
NEUTRINO FACTORY MUON COLLIDER In present MC baseline design, Front End is same as for NF STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 7 A DECADE OF PROGRESS
Successful completion of NF feasibility studies 1, 2, 2a, & International Scoping Study; launching of the ongoing International Design Study for a NF (IDS-NF). Successful demonstration of the target technology (MERIT: Mercury jet in 15T solenoid hit by intense beam) Conceptual development & simulation of a complete, self-consistent, muon cooling scheme (further conceptual development probably needed). Built a unique accelerator R&D facility (MuCool Test Area) at end of FNAL Linac for testing cooling channel components. Launching of MICE: international ionization cooling experiment at RAL. First multi-TeV Muon Collider ring design & magnet concepts (to operate in decay background environment) First detector background studies (10 years ago), & launching of 2 nd generation of studies (now). STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 8 THE BIRTH OF MAP Oct 1, 2009 letter from Denis Kovar to FNAL Director:
Our office believes that it is timely to mount a concerted national R&D program that addresses the technical challenges and feasibility issues relevant to the capabilities needed for future Neutrino Factory and multi-TeV Muon Collider facilities. ... Letter requested a new organization for a national Muon Collider & Neutrino Factory R&D program, hosted at FNAL. Muon Accelerator Program Organization is now in place & functioning: >200 participants from 15 institutions: ANL, BNL, FNAL, Jlab, LBNL, ORNL, SLAC, Cornell, IIT, Princeton, UCB, UCLA, UCR, U-Miss, U. Chicago MAP R&D proposal reviewed August 2010 committee concluded that the proposed work was very important to the field of high energy physics. STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 9 MAP ORGANIZATION Level 0
Level 1 STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 10 ORGANIZATION: L1 & L2 Level 1 L2 assignments - FNAL; 4 people - Other Labs: 3 people - Universities: 3 people - SBIR Companies: 1 person STEVE GEER MAP WINTER MEETING JLab
28 February, 2011 11 INSTITUTIONAL BOARD Harry Weerts (ANL) Ilan Ben-Zvi (BNL) Vladimir Shiltsev (FNAL) Andrew Hutton (JLab) Steve Gourlay (LBNL) Van Graves (ORNL) Tor Raubenheimer (SLAC) Don Hartill (Chair) (Cornell) Dan Kaplan (Secretary) (IIT) Kirk McDonald (Princeton) Jonathan Wurtele (UCB) David Cline (UCLA) Gail Hanson (UCR) Don Summers (U-Miss) STEVE GEER IB advises MAP Director(s) on matters of policy, and - Maintains membership list & directory - Annual list of publications based on MAP funded work
- Guideline for MAP membership - Publication & presentation policies - Advises on communication & outreach - Scheduling & organizing workshop/meetings requested by the MAP Director(s) IB members are the first point of contact between the institutions and the MAP Director(s). MAP WINTER MEETING JLab 28 February, 2011 12 TECHNICAL BOARD Alan Bross (FNAL) Rick Fernow (BNL) Juan Gallardo (Secretary) (BNL) Steve Geer (Co-Chair) (FNAL) Don Hartill (Cornell) Dan Kaplan (IIT)
Derun Li (LBNL) Kirk McDonald (Princeton) Bob Palmer (BNL) John Tompkins (FNAL) Mike Zisman (Co-Chair) (LBNL) STEVE GEER MAP WINTER MEETING IB advises MAP Director(s) on technical matters, and in particular on - Support required to attain milestones - Process to make technical choices - Guideline for MAP membership - Changes to the MAP plan in response to new results - Proposals from new institutions to carry out MAP supported R&D Note that the board includes the three L1 managers. JLab
28 February, 2011 13 OTHER MANAGEMENT GROUPS There are two other important management groups that, although not dictated by the MAP Management Plan, have been put in place by the present management to help things run smoothly: MAP MANAGEMENT COUNCIL (makes week-by-week management decisions): - MAP Director(s) - MAP L1 Managers - Additions desired by MAP Director(s) - currently Bob Palmer - MC Physics/detectors leader (Estia Eichten) as needed MAP PROGRAM MANAGEMENT GROUP (monthly meetings between resource providers & MAP leadership) - Stuart Henderson (chair) - Agenda set in consultation with MAP Director(s) - Participants include relevant Division Heads & MAP L1s STEVE GEER MAP WINTER MEETING JLab 28 February, 2011
14 WEBSITE http://map.fnal.gov/ STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 15 MAP PLAN: GOALS Deliver on our commitments to making MICE and the IDS-NF studies a success. Deliver a Design Study to enable the community to judge the feasibility of a multi-TeV Muon Collider, including: (i) an end-to-end simulation of a MC complex based on technologies in-hand or that can be developed with a specified R&D program. (ii) hardware R&D and experimental tests to guide & validate the design work. (iii) Rough cost range.
STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 16 MILESTONES & DELIVERABLES Muon Collider Design Feasibility Report (FY16) Based on end-to-end simulation of MC complex which uses components that are in-hand or can be developed with a specified R&D program Hardware R&D results technology choice MC Cost range (FY16) Contributions to the IDS-NF RDR (FY14) R&D plan for longer-term activities (including 6D cooling experiment) Deliverable
Nominal schedule Augmented schedule MC DFS Interim Final + cost range MICE hardware completion RF studies (down-select) IDS-NF RDR 6D cooling definition 6D cooling section component bench test 6D demonstration proposal FY14 FY16 FY13 FY12 FY14 FY12 FY16 FY16 FY15 STEVE GEER
MAP WINTER MEETING JLab FY15 FY15 28 February, 2011 17 PAST-PRESENT-FUTURE First ~10 years FY07 FY09 FY10 NOW FY11 NFMCC NFMCC +
4 MW 4 MW ! STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 19 KEY CHALLENGES: RF in Magnetic Fields Significant degradation in maximum stable operating gradient for NCRF copper cavities in few Tesla coaxial field Mucool Test Area HOW CAN WE MITIGATE THIS EFFECT? WHAT OPERATIONAL RF PARAMETERS SHOULD WE ASSUME IN OUR COOLING CHANNEL SIMULATIONS? STEVE GEER MAP WINTER MEETING JLab
28 February, 2011 20 KEY CHALLENGES: Last Stages of Cooling Palmer CAN WE MAKE THIS WORK ? CAN WE DEVELOP THIS TECHNOLOGY? IS THERE A BETTER IDEA? STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 21 KEY CHALLENGES: Cost Effective Acceleration
We have a baseline acceleration scheme for the NF, which delivers muons at 25 GeV. COST-EFFECTIVE ACCELERATION IS A HUGE ISSUE FOR A MULTI-TEV LEPTON COLLIDER WHAT SHOULD WE USE FOR THE MAIN ACCELERATION? CAN WE MAKE RAPID CYCLING SYNCHROTRONS WORK? MAGNETS? LATTICE & DYNAMICS? STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 22 KEY CHALLENGES: The Ring & MDI There is a growing physics/detector/background activity. ENOUGH HAS BEEN DONE TO KNOW WE HAVE A CHALLENGE EVERY FACTOR OF
2 REDUCTION IN BACKGROUND COUNTS ! STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 23 FINAL REMARKS The birth of MAP has already resulted in a much-needed increased exposure for Muon Accelerator R&D Together, we proposed an R&D plan that was reviewed last August the proposed work was very important to the field of high energy physics. The plan requires us to continue to be inventive, but also to be disciplined in our R&D ! Keep in touch with the appropriate L1/L2 managers to make sure your critical contributions fit within the plan & really count. We are proposing to deliver an option for the future of high energy physics: CHALLENGE
OPPORTUNITY STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 24 GIVE TALKS AT UNIVERSITIES NOT PRESENTLY INVOLVED IN MAP LETS SEE IF WE CAN GET A GOOD TURN-OUT FOR TELLURIDE http://conferences.fnal.gov/muon11/ STEVE GEER MAP WINTER MEETING JLab 28 February, 2011 25
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