ttbar gamma events with CompHEP
Author: Lev Dudko (dudko@fnal.gov)
Published Data: 12.06.2003
Category: Top
Print version
MC events for the process p,P->t,T,A
have been generated by CompHEP 41.10
'A' is the photon.
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:
PROCESS U# u# -> A t T Cross_section 6.334608E-05
PROCESS G G -> A t T Cross_section 3.504470E-04
PROCESS u# U# -> A t T Cross_section 4.871601E-02
PROCESS d# D# -> A t T Cross_section 2.464755E-03
PROCESS D# d# -> A t T Cross_section 3.674049E-05
Number_of_subprocesses = 5
Total_cross_section_(pb) = 5.163130E-02
Events_mixed_and_randomized = 105931
Parameters of generation:
SQRT(S) 1.960000E 03 GeV
StrFun1: PDF:CTEQ5L(proton)
StrFun2: PDF:CTEQ5L(anti-proton)
QCD scale Q = 175 GeV
Cuts: Pt(A)>15 GeV
DR(A,t) (A,T)>0.3
These events and generator are available in
enstore system
(e.g. fsgi01.fnal.gov): /pnfs/patriot/Top/tTA/
tta.tar.gz:
rw-r--r-- 5989/4220 159769 Jun 12 21:53 2003 batch.dat
- config file for the generator
rw-r--r-- 5989/4220 90356 Jun 12 18:42 2003 diag.ps
- diagrams which are calculated
rw-r--r-- 5989/4220 33186 Jun 12 18:42 2003 diag.tex
rw-r--r-- 5989/4220 552051 Jun 12 18:44 2003 diag_p1.gif
rw-r--r-- 5989/4220 59563 Jun 12 18:43 2003 diag_p1.ps
rw-r--r-- 5989/4220 552051 Jun 12 18:45 2003 diag_p2.gif
rw-r--r-- 5989/4220 58486 Jun 12 18:44 2003 diag_p2.ps
rw-r--r-- 5989/4220 2312240 Jun 12 17:01 2003 events_10.txt - events
for the subprocesses
rw-r--r-- 5989/4220 2370118 Jun 12 17:47 2003 events_11.txt
rw-r--r-- 5989/4220 23183192 Jun 12 21:53 2003 events_12.txt
rw-r--r-- 5989/4220 2316880 Jun 12 13:54 2003 events_8.txt
rw-r--r-- 5989/4220 2320128 Jun 12 15:28 2003 events_9.txt
rw-r--r-- 5989/4220 0 Jun 12 10:44 2003 extern.h
rw-r--r-- 5989/4220 1624244 Jun 12 10:45 2003 f_0.a
rwxr-xr-x 5989/4220 1147472 Jun 12 10:45 2003 n_comphep - generator
(precompiled for SGI)
rw-r--r-- 5989/4220 7125 Jun 11 21:33 2003 plot_1.tex
rw-r--r-- 5989/4220 7037 Jun 11 21:33 2003 plot_2.tex
rwxr-xr-x 5989/4220 370 Jun 12 19:20 2003 prt.pl
rw-r--r-- 5989/4220 1680 Jun 12 17:01 2003 prt_10
- protocols of subprocesses calculations
rw-r--r-- 5989/4220 1594 Jun 12 17:47 2003 prt_11
rw-r--r-- 5989/4220 1787 Jun 12 21:53 2003 prt_12
rw-r--r-- 5989/4220 1678 Jun 12 13:54 2003 prt_8
rw-r--r-- 5989/4220 1678 Jun 12 15:28 2003 prt_9
rw-r--r-- 5989/4220 552051 Jun 12 18:37 2003 pt_eta_a.gif
rw-r--r-- 5989/4220 80507 Jun 12 18:37 2003 pt_eta_a.ps
rw-r--r-- 5989/4220 14177 Jun 12 18:37 2003 pt_eta_a.tex
rw-r--r-- 5989/4220 31958 Jun 12 21:53 2003 session.dat
rw-r--r-- 5989/4220 24158170 Jun 12 21:59 2003 tta.pev -
complete set of randomly mixed and
reweighted events
The complete set of tree level diagrams has been taken into account:
The distributions of the photon are following:
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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