MDC4 Input Datasets

Below is a table with the datasets planned for MDC4.

 

Dataset A

Dataset B

System Au+Au p+p
Ecm 200 GeV 200 GeV
Multiplicity MEVSIM standard multiplicity minimum bias & pile-up (~10 events)
Generator MEVSIM PYTHIA 6.136
# of Events 20,000 100,000 (without pileup)
Geometry y2001 (i.e. exact configuration for run 2001) y2001
Simulator TPC = TRS, SVT = fast, RICH = RRS, EMC = standard, FTPC = slow, TOF = fast (in progress) same as in Au+Au
Field 0.5 T 0.5 T
Vertex sigma_z = 20 cm, sigma_xy = 0.5mm & offset sigma_z = 7.5 cm, sigma_xy = 0.5mm
Kinematics physical pT and y distributions (not flat !) PYTHIA
Flow v2 pT dependent, slope:
v2 = 0 for pt = 0 GeV/c
v2 = 4% for pt = 0.5 GeV/c
flat in eta (4%)

v1 = 0 for pt = 0 GeV/c
v1 = 6% for pt = 0.5 GeV/c
flat in eta (6%)

N/A
Add-on 3 pi0 / event, flat in 2 GeV/c < p < 15 GeV/c
50 Omegas/event (decay in GSTAR)
50 L(1520) -> p K
50 Sigma(1385) -> L pi
10 J/Psi -> e+ e- / event (decay in MEVSIM)
10 phi -> e+ e- / event (decay in MEVSIM)
10 Uspilons -> e+ e- / event (decay in MEVSIM)
10 D0 -> K pi/event (decay in GSTAR)
10 D+/- -> K pi pi /event (decay in GSTAR)
N/A
Remarks - Pileup not added for SVT + FTPC
Contact Ron Longacre for MEVSIM, Pavel Nevski for GSTAR Jan Balewski for PYTHIA + GSTAR

 

Dataset C

System Au+Au peripheral
Ecm 200 GeV
Multiplicity N/A
Generator STARLIGHT
# of Events 220,000 2-photons events + 172,000 photonuclear events
Geometry y2001 (i.e. exact configuration for run 2001)
TPC/SVT Simulator slow (TRS)
Field 0.5 T
Vertex sigma_z = 20 cm, sigma_xy = 5mm
Kinematics N/A
Flow N/A
Details 220,000 2-photon events
e+/e- 100,000
mu+/mu 97,400
f2(1270) 2000
f0(975) 500
rho pairs 100
f2(1525)->k0_S 20,000

172,000 photonuclear events
rho 70,000
omega 2000
phi->K+K- 100,000
phi->K0K0 100,000

Contact Janet Seger for STARLIGHT, Pavel Nevski for GSTAR

Last update:Thursday, April 12, 2001