Research Plan at RIKEN CC-J

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

Research Subject : estimation of photon conversion in PHENIX spectrometer

Person responsible for this research:
Name : Takashi Hachiya
Tel/Fax : +81-824-24-7375
E-mail :

Person responsible for the job submission:
Name : Takashi Hachiya
Tel/Fax : +81-824-24-7375
E-mail :

Other collaborators in this research subject:
Name : Yasuyuki Akiba

Summary of this research (10-100 lines)
Our purpose is to estimate photon conversion efficiency in
energy by energy inner drift chamber in PHENIX spectrometer.
So, We need single photon simulation.
We plan to process PISA, response, reconstruction chain, then make microDST
from our simulation DST with every detector and material, no magnetic field,
photon momentum = 0.25, 0.35, 0.5, 0.7, 0.9, 1.1, 1.5, 2.0.
Every photon is shot into West arm of PHENIX central arm.
In each momentum, 1,000,000 photons will be processed, and
we expect roughly 20,000 e+e- pair will be created, because of about 2%
length inner drift chamber.
For more detailed research, we need to study by simulation.

Estimated CPU time required :      hours (with Pentium III 850MHz)
10 (hour) x 100 (CPU)

Estimated disk space usage required :  70   GB

Estimated HPSS space usage required :

Target date for completion :   05/01/01   (DD/MM/YY)

Plan for the publication of this result (if possible)