JAM (Jet AA Microscopic transport Model)
This is JAM version 1.000 by Yasushi Nara
Many interesting phyiscs are jammed in heavy ion collisions.
I hope you have a real jam with JAM.
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Manual 'jam.tex' can be found in directory tex for great detail.
o Program useage of JAM is very similar to PYTHIA,FRITIOF,HIJING,VNI
o Particle ID is the same as PDG ID.
If you write
fname(1)='jam.cfg'
in your own main program. In this case, JAM use input file
of 'jam.cfg'.
How to input to run.
This is a example for input file.
(1) event=100 <-- Total number of siumulation run
(2) proj=27Si <-- proj. type
(3) targ=28Al <-- Targ. type
(4) win=10.0GeV <-- Incident energy(momentum) in GeV(GeV/c).
(5) frame=nn <-- Comp. frame is NN center of mass.
(6) bmin=0. <-- Min. impact parameter (fm).
bmax=0. <-- Max. impact parameter (fm).
(7) dt=50.0 <-- Time step size(fm/c).
timestep= 1 <- Total number of time step.
(8) mstc(3))=1 <--optional input for mstc(),parc()
(9) fname(2)=JAMECHO.DAT <-- File name for front page
(10)end <-- end input
Note:
(2)(3) proj, targ:
For the projectile type, p, p~, n, n~, pi+,pi0,pi-,k-,k+...
are avaiable.
If proj=non, we can check the ground state properties of
nucleus with target nucleus.
targ=100:50 : mass number 100 and 50 neutrons
(4) win: incident energy. Avaiable Units are gev,gevc,mev or mevc.
(^_^) If you want to enter momentum,
put for exapmele win=1.0gevc or win=1.0mevc.
(^_^) If you chose optin frame=collider,
the meaning of incident energy becomes c.m. energy/nucleon.
(5) frame: Avaiable frame (comp. frame) is
frame=nn NN center of mass frame
frame=cm Total center of mass frame
frame=lab Lab. frame.
frame=collider Collider.
frame=box1.00 where 1.00 is density in rho_0 unit
(6) If bmax<0, impact parameter is distributed
according to the squared b^2 distribution between bmin and bmax,
while bmax>0, impact parameter is uniformly distributed
between bmin and bmax.
If mstc(18)(number of impact parameter bin) gt.1,
impact parameter is distributed by the bin
\delta b=(bmax-bmin)/mstc(18) and total number of simulation
event becomes mstc(18)*nevent.
(8) If you want to change default value of mstc(),parc().
put, for example, mstc(65)= 2.
'#' or '!' can be used to comment.
Blank line is also possible.
(9) 'fname()' can be changed. 2,3,5,6,7,8 can be avaliable.
(10) Input file should be ended by 'end' command.
See the example input file 'jam.cfg'.