57 research outputs found
CompHEP-PYTHIA interface: integrated package for the collision events generation based on exact matrix elements
CompHEP, as a partonic event generator, and PYTHIA, as a generator of final
states of detectable objects, are interfaced. Thus, integrated tool is proposed
for simulation of (almost) arbitrary collision processes at the level of
detectable particles. Exact (multiparticle) matrix elements, convolution with
structure functions, decays, partons hadronization and (optionally) parton
shower evolution are basic stages of calculations. The PEVLIB library of event
generators for LHC processes is described.Comment: Standard LaTeX, 4 pages. To appear in the proceedings of the Seventh
International Workshop on Advanced Computing and Analysis Technics in Physics
Research (ACAT2000, Fermilab, October 16-20, 2000
Measurement of the Coupling at the Future Linear \ee Collider
We examine the prospects for measuring the coupling of a
Standard Model-like Higgs boson with a mass between 120 and 160 GeV at the
future TESLA linear \ee collider, assuming an integrated luminosity of 1
ab and a center-of-mass energy of 500 GeV. We consider the Higgs boson
produced in association with via the fusion reaction
, followed by the rare decay into a boson
and a photon, . Accounting for all main background
contributions, different selection procedures are discussed. Uncertainties on
the \hZg branching fraction of approximately 48% (27%, 44%) can be achieved in
unpolarised \ee collisions for = 120 (140, 160) GeV. With appropriate
initial state polarisations BF(\hZg)/BF(\hZg), or the precisions on the
\hZg partial width, can be improved to 29% (17%, 27%) and provide valuable
information on the coupling. We regard our results as a convincing
confirmation of the great potential of a linear collider to access and reliably
measure important parameters of the Higgs boson despite initially overwhelming
background with final state signature similar to the signal events.Comment: 17 pages, 6 figure
Prospects for Searching for Excited Leptons during RunII of the Fermilab Tevatron
This letter presents a study of prospects of searching for excited leptons
during RunII of the Fermilab Tevatron. We concentrate on single and pair
production of excited electrons in the photonic decay channel in one CDF/DO
detector equivalent for 2 fb^{-1}. By the end of RunIIa, the limits should be
easily extended beyond those set by LEP and HERA for excited leptons with mass
above about 190 GeV.Comment: 4 pages, 8 figure
The correlation properties of the arrival angles of a wave reflected by an inhomogeneous scattering layer
Preparation of engineering staff for the activities under WTO
The article is about the productive collaboration of two universities of different types.These universities are KNRTU specializing in preparation of Chemical Engineers, and VAVT specializing in preparation of economists and lawyers in the sphere of international relations. Due to the cooperation of the University and the Academy, professional retraining program named ‘Management of organization’s foreign trade under WTO conditions’ was prepared
Fluctuations of the group path and the group-delay time of waves obliquely reflected by a plane-layered medium
Random Field Ergodicity about Characteristical Function by Averaging Along Direct Line Change Instead of Averaging Over the Volume
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