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COMPARISON OF THE DATA ON PROTON-PROTON AND PROTON-
ANTIPROTON INTERACTIONS AT HIGH ENERGIES ON BASIS OF THE LOW
CONSTITUENTS NUMBER MODEL
N.V. Abramovskaya, V.A. Abramovsky
Novgorod State University
The experimental data of the LHC collaborations CMS, ATLAS and ALICE have shown the
20-30% disagreement in inclusive cross sections of proton-proton and proton-antiproton
collisions at center-of-mass energy 900 GeV when comparing with results of the UA1
collaboration. The experimentalists explain this difference by uncertainties in event selection
of the UA1 collaboration. We argue that the difference in proton-proton and proton-antiproton
collisions can not be explained only by these uncertainties. We consider total, elastic and
inclusive cross sections of proton-proton and proton-antiproton interactions and analyze the
possible principles of difference in these interactions on basis of the Low Constituents
Number Model. The consequences of such difference for the MC event generators are
discussed. The work is supported by RFBR grant 11-02-01395-a.
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