CompHEP p,P->Z,j->e ,e-,j events

 
MC events for the process
p,P->Z, j -> e-, e , j (j=u,d,c,s,g)
have been generated by CompHEP 41.10 taking into
account the spin correlations in all decays.
The contribution of sea quarks in the initial
state has been included.


The following subprocesses are included:

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

PROCESS u U -> G e1 E1 Cross_section 2.930423E 01
PROCESS c G -> e1 E1 c Cross_section 1.845755E-01
PROCESS C c -> G e1 E1 Cross_section 1.306695E-01
PROCESS C G -> e1 E1 C Cross_section 1.844192E-01
PROCESS s S -> G e1 E1 Cross_section 6.109394E-01
PROCESS s G -> e1 E1 s Cross_section 4.563376E-01
PROCESS S s -> G e1 E1 Cross_section 6.095128E-01
PROCESS S G -> e1 E1 S Cross_section 4.563384E-01
PROCESS G u -> e1 E1 u Cross_section 5.376039E-01
PROCESS G U -> e1 E1 U Cross_section 5.430533E 00
PROCESS G d -> e1 E1 d Cross_section 8.526115E-01
PROCESS u G -> e1 E1 u Cross_section 5.440719E 00
PROCESS G D -> e1 E1 D Cross_section 3.222732E 00
PROCESS G c -> e1 E1 c Cross_section 1.844895E-01
PROCESS G C -> e1 E1 C Cross_section 1.844206E-01
PROCESS G s -> e1 E1 s Cross_section 4.562998E-01
PROCESS G S -> e1 E1 S Cross_section 4.563431E-01
PROCESS U u -> G e1 E1 Cross_section 1.007347E 00
PROCESS U G -> e1 E1 U Cross_section 5.386510E-01
PROCESS d D -> G e1 E1 Cross_section 1.389003E 01
PROCESS d G -> e1 E1 d Cross_section 3.212671E 00
PROCESS D d -> G e1 E1 Cross_section 1.956001E 00
PROCESS D G -> e1 E1 D Cross_section 8.527998E-01
PROCESS c C -> G e1 E1 Cross_section 1.306672E-01
Number_of_subprocesses = 24
Total_cross_section_(pb) = 7.029094E 01
Events_mixed_and_randomized = 634307


Parameters of generation:

SQRT(S) 1.960000E 03 GeV
StrFun1: PDF:CTEQ5L(proton)
StrFun2: PDF:CTEQ5L(anti-proton)
QCD scale Q = 40 GeV

Cuts:
Pt(j) > 10 GeV
60 GeV< M_e e-<120 GeV ( 60<(p_e1 p_E1)**2<120 )

These events and the generator are available in the enstore system
(e.g. fsgi03.fnal.gov): /pnfs/patriot/Z_jets/Z_j/
138MB Zj_eej_2-3.pev (Mixed and randomized events in native format
for input to the CompHEP-Pythia interface)
54MB zj_eej_results.tar.gz (Tar file of all files, including precompiled generator and protocol files.)


If you use these events. please refer 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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