Download UrQMD

Note: UrQMD-3.4 is the latest version and should be used. Older versions are on this site, only for reference and comparison.

Version tarball Last Modified Documentation Download Size Uncompressed Size
urqmd-3.4 urqmd-3.4.tar.gz 2014-08-06 user guide (pdf) (51750016 Bytes) (213329920 Bytes)
urqmd-3.3p2-old urqmd-3.3p2-old.tar.gz 2014-08-06 user guide (pdf) (51120696 Bytes) (211589120 Bytes)
urqmd-1.3cr urqmd-1.3cr.tar.gz 2004-10-12 (153355 Bytes) (655360 Bytes)

Compiling and Running UrQMD

To install, download the file to your computer and extract it. This will create a directory. Change into this directory and run make. This will give something like this:

$ tar xzvvf urqmd-3.4.tar.gz
drwxrwxr-x graef/graef 0 2009-12-16 13:27 urqmd-3.4/
drwxrwxr-x graef/graef 0 2009-12-16 13:10 urqmd-3.4/eosfiles/
-rw-rw-r-- graef/graef    45824 2009-12-16 13:10 urqmd-3.4/scatter.f
$ cd urqmd-3.4.tar.gz 
$ make

To run UrQMD, you can use the file runqmd.bash:

$ /bin/bash runqmd.bash

This will start the simulation of one lead-on-lead collision with an impact parameter of b = 5 fm at lab energy of ELab = 160 AGeV. Please refer to the user guide for information how to change these parameters.

So, to easily snatch the code you need to execute:

tar xzvvf urqmd-3.4.tar.gz
cd urqmd-3.4.tar.gz 
/bin/bash runqmd.bash

Boosting Output

You may want to obtain output files in the LAB frame rather than the usual computational frame (which is that of equal velocities). For that, please use the on your output:

$ perl < OLD_F14 > BOOSTED_F14

where OLD_F14 is the original UrQMD output and BOOSTED_F14 is the boosted UrQMD output, where all coordinates and momenta in the first 8 columns (refer to the User Guide for explanations) have been boosted to a frame where the target rests.

Note: This file has last been modified Mon, 24 Jul 2017 07:38:52 +0200 and may be obsolete. To update this document, please check here (may take some time, please be patient). © Goethe-Universität FrankfurtThe UrQMD-Group