About HIJING
Introduction
HIJING is a Monte Carlo event generator for parton and particle
production in high energy hadronic and nuclear collisions. Based on
QCD-inspired models for multiple jet production, it is designed in
particular to study jet and mini-jet production and associated
particle production in high energy pp, pA and AA collisions. This
model incorporates mechanisms such as multiple minijet production,
soft excitation, nuclear shadowing of parton distribution functions
and jet interactions in dense hadronic matter.
HIJING is written in FORTRAN 77, consisting of subroutines for physics
simulation and common blocks for parameters and event records, similar
in form to PYTHIA 5.3
to generate kinematic variables for each hard scattering and JETSET
7.2 for jet fragmentation. The soft hadronic physics is modeled using
a modified version of FRITIOF (but with ATTILA nuclear geometry).
No secondary interactions (e.g. rescattering of produced particles)
is yet implemented, except for the energy loss of jets.
Technical Descriptions
Start with the long write-up, which was published
in ?, also available in LaTeX and
Postscript (230 Kbytes) form.
This write-up contains
- a rather good overview of the physics it implements; and
- a complete technical description of the program: subroutines, common blocks, parameter arrays, and example programs.
You will not need all this information in order to run the STAR HIJING,
but those who will be working intensively with HIJING are suggested to
read this in detail.
Some of the technical information contained in the long write-up
has or will become out of date; therefore, after reading this, it
is suggested that the user refer to hijing.doc for
a shorter but more accurate technical description.
Offical distribution copy of HIJING
Xin-Nian Wang maintains the official distribution copy of HIJING, which is
available via anonymous ftp from nsdssd.lbl.gov under pub/xnwang. I hope
that XN will put in a README file to describe the contents of this
directory.
Example data
Some sample distributions are available in Postscript from XN's
distribution ftp directory:
References
HIJING is, according to Matt Bloomer,
the most thoroughly documented and tested heavy ion event
generator on the market. It has been compared extensively to
pp and p-pbar data at collider energy, and with existing
heavy ion data at SPS energies. The following list contains
references to articles which deal directly with HIJING or with the
physics it contains. References nos. 2 and 3 are strongly recommended.
- 1. Role of multiple minijets in high-energy hadronic reactions,
Xin-Nian Wang: Phys. Rev. D43 (1991) 104.
- 2. HIJING: A Monte Carlo model for multiple jet production
pp, pA, and AA collisions, Xin-Nian Wang and Miklos
Gyulassy: Phys. Rev. D44 (1991) 3501.
- Extensive overview of physics implemented withing HIJING.
- 3. Systematic study of particle production in p+p(pbar)
collisions via the HIJINGX model, Xin-Nian Wang and Miklos
Gyulassy: Phys. Rev. D45 (1992) 844.
- Detailed comparison of HIJING to collider data.
- 4. Gluon Shadowing and jet quenching in A+A collisins at
sqrt(s)=200 AGeV, Xin-Nian Wang and Miklos Gyulassy:
Phys. Rev. Lett. 68 (1992) 1480.
A complete list of articles by Xin-Nian Wang can be obtained by querying
the WWW SLAC
SPIRES HEP database.
Last modified: 5 April 1996
Andrea Schiemann
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