CompHEP p,P->t, T->W , W-, b, B events

Author: Lev Dudko (dudko@fnal.gov)
Published Data: 30.04.2002
Category: Top
Print version

MC events for the process
p,P->t, tbar -> W, W, b, B
have been generated by CompHEP 41.10 taking into
account the spin correlations up to top decay.
The contribution of sea quarks in the initial
state has been included, due to use the u#,d# model (described in hep-ph/0004194).

The following subprocesses are included:

Upper letters means antiparticles
E1 - positron
e1 - electron
n1 - electron neutrino
G - gluon

PROCESS u# U# -> b B W W-     Cross_section 4.723449E 00
PROCESS U# u# -> b B W W-     Cross_section 1.044705E-02
PROCESS d# D# -> b B W W-     Cross_section 8.424500E-01
PROCESS D# d# -> b B W W-     Cross_section 2.059272E-02
PROCESS G G -> b B W W-     Cross_section 3.355921E-01
Number_of_subprocesses = 5
Total_cross_section_(pb) = 5.932531E 00
Events_mixed_and_randomized = 590167

Parameters of generation:

SQRT(S) 1.960000E 03 GeV
StrFun1: PDF:CTEQ5L(proton)
StrFun2: PDF:CTEQ5L(anti-proton)
QCD scale Q = 175 GeV

Cuts: None

These events and generator are available in enstore system
(e.g. fsgi03.fnal.gov): /pnfs/patriot/Top/tT_lnjjbb/

95K batch.dat - config file for the batch calculations to run in batch mode.
128M events_1.txt - events for the particular subprocess
1.9M events_2.txt
   25M events_3.txt
3.8M events_4.txt
   14M events_5.txt
    0b extern.h
605K f_0.a
769K n_comphep* - precompiled generator for Linux
1.8K prt_1 - protocols of calculations for the particular subprocess
1.8K prt_2
1.8K prt_3
1.8K prt_4
2.0K prt_5
159M tt_2-4_wwbb.pev - mixed and randomized events in native format
for the CompHEP-Pythia interface

If you use these events. please refere to:
CompHEP
\bibitem{comphep}
"COMPHEP: A PACKAGE FOR EVALUATION OF FEYNMAN DIAGRAMS AND INTEGRATION
OVER MULTIPARTICLE PHASE SPACE."
By A.~Pukhov, E.~Boos, M.~Dubinin, V.~Edneral, V.~Ilyin, D.~Kovalenko, A.~Kryukov,
V.~Savrin (Moscow State U.), S.~Shichanin (Serpukhov, IHEP),
A.~Semenov (Dubna, JINR). INP-MSU-98-41-542, Aug 1999. 126pp.
User's manual for version 33. e-Print Archive: hep-ph/9908288;
E.E.~Boos, M.N.~Dubinin, V.A.~Ilyin, A.E.~Pukhov,
and V.I.~Savrin, INP MSU 94-36/358 and SNUTP-94-116, hep-ph/9503280;
P.~Baikov \textit{et al.}, in Proc.\ of the Xth Int.\ Workshop on High
Energy Physics and Quantum Field Theory, QFTHEP-95,
ed.\ by B.~Levtchenko and V.~Savrin, (Moscow, 1995), p.~101.

CompHEP-PYTHIA interface
\bibitem{comphep-pythia}
"CompHEP-PYTHIA interface: integrated package for the collision events generation based on exact matrix elements"
In the proceedings of the Seventh International Workshop on Advanced Computing and Analysis Technics in Physics Research (ACAT2000, Fermilab, October 16-20, 2000), hep-ph/0101232

Generic User Process Interface for Event Generators
\bibitem{les-houches}
"Generic User Process Interface for Event Generators"
Physics at TeV Colliders II Workshop, Les Houches, France, May 2001 14 pages, 6 figures,
hep-ph/0109068

Lev V. Dudko e-mail:dudko@fnal.gov
t. 1(630)8408233 http://lev.art.ru
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