2009, Vol.12, No.4, pp.435-439
Secondary charged hadrons multiplicity distributions in
proton-proton and proton-antiproton collisions differ on
principle. There are three types of inelastic processes in
proton-antiproton scattering. The first type is production of
secondary hadrons shower at gluon string decay. The second type is
shower produced from two quark strings decay, the third type is
shower produced from three quark strings decay. At the same time
there are only two types of inelastic processes for proton-proton
scattering - gluon string shower and two quark strings shower.
Theoretical description of multiplicity distributions is obtained
for proton-proton collisions at energies from 44.5 GeV to 200 GeV
and for proton-antiproton collisions at energies from 200 GeV to
1800 GeV. The difference between proton-proton and
proton-antiproton multiplicity distributions is discussed. The
predictions of multiplicity distribution and mean multiplicity at
LHC energy are given.
Key words:
multiplicity distribution, proton, antiproton, quark
string, gluon string
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