nufact 03 5th international workshop on neutrino factories & superbeams

Summary of Nufact-03 Alain Blondel

NuFact 03 5th International Workshop on Neutrino Factories & Superbeams

Columbia University, New York 5-11 June 2003

Highlights and personnal impressionspart III acelerator

http://www.cap.bnl.gov/nufact03/


Ekin

Time

Neutrino Factory: the Japanese Scenarionow more thoroughly simulated based on FFAG

physics all the way:low E muonsg-2 muons, low energy NuFact, 20 GeV NUFACT…

Other notable difference wrt US and EU scheme Energy for capture is higher (0.4 +- 0.2 kinetic GeV) (50 GeV proton source + optimization)

SUPPORTED!

COOLING is not necessary….but brings a factor in intensity of >> 2! Japan (Osaka & KEK) are active members of MICE!


Muon Physics Programs & Staging Scenario

Pion Capture (MECO) Muon LFV

Neutrino Factory Muon Collider

Muon Factory-II (PRISM-II) Muon EDM

◆High Power Proton DriverMuon g-2

Muon Factory (PRISM) Muon LFV

Muon g-2

Physics outcomesat each stage


Yoshi Mori NB: a standard cyclotron would be MUCH smaller and inexpensivebut would have much smaller acceptance and could not be scaled upto higher energies.


Yoshi Mori

PRISM=Phase Rotated Intense Slow Muon sourcePRISM=Phase Rotated Intense Slow Muon source

PRISM

Specifications muon intensity: 1011~1012

/sec central momentum: 67-120

MeV/c momentum width: 3 % (<---

30 % ） phase rotation

PRISM ring construction has been approved.

PRISM ring construction has been approved.

approx 5 M$


US MC (Neutrino Factory and Muon Collider collaboration)

highlights*** target studies already advertised. mercury jet in beam mercury jet in B field to get both is a problem: where and how???? JHF / Isolde…

***RF studies in magnetic fields Important for MICE (rf noise in spectrometer) Important for NUFACT (cooling channel with high emittance muon beam going through RF while being contained in magnetic field (phase rotation or cooling) studies so far with 800 MHz, construction of 200 MHz cavity now started!

nice study of cooling in gas H2 filled cavities. (R. Johnson)

*** replace induction linacs with RF phase rotation (Neuffer) (cost saving!)

*** cooling rings works (on paper)! main problem : the injection and ejection kicker


US MC (Neutrino Factory and Muon Collider collaboration)


sizeable improvement in the level of dark current using Be windows


Kicker studies (Palmer)


TOWARDS WORLD STUDY III

Rob Edgecock took initiative (triggered by MUG) to initiate a ‘world study III

… trigger is EU FP6 design study request.

… all three regions agree to collaborate.

Aim is: 1. Design Report by LHC start up. 2. reduce cost of neutrino factory by factor of 2.

steering group formed etc….


MICE

Experiment passed International Peer Review Panel successfully‘strongly recommends approval’

Experiment under funding review in the UK: [10 M£ or 15 M£]

this means we will be going around looking for cryogenics, RF power sources, beam magnets, etc…

RAL management has authorized construction work to begin in the experimental hall at RAL

MICE IS HAPPENING!


- STEP I: 2006

STEP II: summer 2006

STEP III: winter 2007

STEP IV: spring 2007

STEP V: fall 2007

STEP VI: 2008

If funding is adequate, the following sequence of events can be envisaged:


first results from miniboonefirst results from MUSCAT!theta13 prospectives (reactor proposals!) the issue of degeneraciesbeta beam getting close in performance to neutrino factory?!Nufact: death of bow-tie

machine part: MICE strongly recommended – in approval pathstatus of target status of RF cavity studiesstatus of accelerator design FFAG!!!! Cooling ring!!!!to cool or not to cool?cost saving hopes

WORLD STUDY III

synergies: emphasis on low energy muon and high intensity physics

personnal reflexions:Europe’s strengthstwo avenues for Europe: when should we chose?

NUFACT03 Highlights

nufact 03 5th international workshop on neutrino factories & superbeams

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