Seq. Number (TBA   )
Research Plan at RIKEN CC-J 
	          Date: 08/07/04 (DD/MM/YY)

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

Reseach Subject : KEK PS-E325 re-production for Kaon data

(PHENIX official or not :    no )

Person responsible for this reserch:
Name : Ryotaro Muto
Tel/Fax : x3296
E-mail : muto@riken.jp

Person responsible for the job submission:
Name : Ryotaro Muto
Tel/Fax : x3296
E-mail : muto@riken.jp


Other collabrators in this research subject:
Name : H. En'yo, S. Yokkaichi, T. Tabaru, M. Naruki, F. Sakuma
  

Summary of this research (10-100 lines)

 KEKPS E325 is an experiment that measure the vector meson decay in nuclei to explore the partial restoration of the chiral symmetry of QCD.                                                                        
 We intend to re-analysis the Kaon-triggered data taken in 2001 and 1999 ( about 1.4TB data ) with improved analysis code for track-finding in drift chambers.
 This analysis will increace the good K+ K- events three times as large as before.
 We will compare the cross section of phi -> K+K- with that of phi -> e+e-
 to derive information about phi-meson mass modification in nuclear matter.

Estimated CPU time required : 176000 hours (with Pentium III 1GHz)
  
Estimated disk space usage required : 2000 GB(input 1500 GB + output 500 GB)
 
Estimated HPSS space usage required :  500 GB

HPSS band width for above estimate  :   0.2 MB/s


Target date for completion : 30/07/04     (DD/MM/YY)


Plan for the publication of this result (if possible)
PRL