Research Plan at RIKEN CC-J 
				          Date:   1/ 12 / 2003  (DD/MM/YY)

To: the Planning and Coordination Office of RIKEN CC-J

Reseach Subject : Simulation Study for Muon Trigger Upgrade

(PHENIX official or not :  no )

Person responsible for this reserch:
Name : Kazuya Aoki
Tel/Fax : 075-753-3871
E-mail : aoki@nh.scphys.kyoto-u.ac.jp

Person responsible for the job submission:
Name : Kazuya Aoki
Tel/Fax : 075-753-3871
E-mail : aoki@nh.scphys.kyoto-u.ac.jp


Other collabrators in this research subject:
Name : Kouhei Shoji
tel/Fax: 075-753-3871
E-mai: shoji@nh.scphys.kyoto-u.ac.jp
  
Summary of this research (10-100 lines)

We need some disk space for muon trigger upgrade study.

The upgrade is for W physics.
muons from W decay can tell us u,d(and their unti-quarks) spin-dependent parton distribution functions.

Beacuse of the large mass of W , the muons from W have large momentum.
So the strategy is to reject low momentum muons. 

We are planning to implement MuTr to LL1 trigger.
With MuTr and the magnetic field , We can roughly measure the momentum of the muons
in the trigger level.

To estimate the rejection factor , We need minbias events(pp col. sqrts = 500GeV)
And to compare simulation with real data, we also need 200GeV minbias data.



Estimated CPU time required :  4000  hours (with Pentium III 1GHz)
  

Estimated disk space usage required :   200  GB
 

Estimated HPSS space usage required : 0

HPSS band width for above estimate  :       MB/s


Target date for completion : 31  /  3  / 2004  (DD/MM/YY)


Plan for the publication of this result (if possible)