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Abstract
"The estimation of Charm total production cross section
in pp-interactions at 70GeV using statistics of rare
multichannel processes"
Larisa Tikhonova
Institute of Nuclear Physics,Moscow State University,
Moscow,Russia,Vorobievi Gori 119899,
e-mail:larisa@npi.msu.su
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The statistics of rare multichannel processes was analyzed and
formulas for the total cross section of a reaction,its upper limit
and confidence level were obtained.These formulas were used for
description of charmed particles production in pp-interactions
at 70 GeV in the E-161 experiment at Serpukhov accelerator
with the SVD set-up.The set-up incorporated a hydrogen rapid
cycling bubble chamber as a precision vertex detector and a large
aperture magnetic spectrometer.The detection efficiencies of
different topology charm decay channels were determined for
the assumed in the experiment selection criteria,using the Monte
Carlo simulation with the help of PYTHIA and GEANT3 programmes.
The estimated cross section was obtained in the form proportional
to the number of detected events and was compared with the really
determined in the experiment cross section value.
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