Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-10-23
Comput.Phys.Commun.181:1144-1149,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, 2 figures
Scientific paper
10.1016/j.cpc.2010.02.008
An upgraded (second) version of the package GENXICC ({\bf A Generator for Hadronic Production of the Double Heavy Baryons $\Xi_{cc}$, $\Xi_{bc}$ and $\Xi_{bb}$ by C.H. Chang, J.X. Wang and X.G. Wu,} [its first version: in Comput. Phys. Commun. {\bf 177} (2007) 467-478]) is presented. Users, with this version being implemented in PYTHIA and a GNU C compiler, may simulate full events of the production in various experimental environments conveniently. In comparison with the previous version, in order to implement it in PYTHIA properly, a subprogram for the fragmentation of the produced double heavy diquark to the relevant baryon is complemented and the interphase of the generator to PYTHIA is changed accordingly. In the subprogram, with explanation, certain necessary assumptions (approximations) are made so as to conserve the momenta and the QCD `color' flow for the fragmentation.
Chang Chao-Hsi
Wang Jian-Xiong
Wu Xing-Gang
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