Proposal for a Simulation at PHENIX Computing Center in Japan (CC-J) Date: 22/12/01 (DD/MM/YY) To: the Planning and Coordination Office of CC-J Title : Single particle MC production for run-1 Lambda and Anti-Lambda analysis. PWG : Hadron PWG Liason: H. Ohnishi Name : H. Ohnishi Tel/Fax : 631-344-7053 E-mail : ohnishi@bnl.gov Person responsible for the job submission: Name : H.Ohnishi Tel/Fax : 631-344-7053 E-mail : ohnishi@bnl.gov Person responsible for the quality assurance: Name : H. Ohnishi Tel/Fax : 631-344-7053 E-mail : ohnishi@bnl.gov Estimated CPU time required : 10000 hours (with PentiumIII 450MHz) Estimated disk space usage required : 500 GB Estimated HPSS space usage required : 500 GB Target date for completion : 31/01/02 (DD/MM/YY) Purpose and merit of the simulation including kinds of events being simulated : The analysis of Lambda and Anti-Lamda spectra and yield in sqrt{s_NN} = 130 GeV are now on final stage for publication. The final missing item is to understand reconstruction efficiency of Lambda or Anti-Lambda in the PHENIX spectrometer. The analysis plan are written as follows. 1) generate single particle MC events of Lambda and Anti-Lambda to get acceptance correction factor and reconstruction efficiency. 2) Embedded single particle MC into real events to evaluate the loss of efficiency due to high multiplicity in spectrometer. This simulation job is critical item to publish Lambda and Anti-Lambda.