Experimental evidences of difference in $pp$ and $p\bar{p}$ interactions at high energies

Abstract

Hadrons production is different in $p\bar{p}$ and $pp$ interactions at high energies. There is process of hadrons production from three quark strings in $p\bar{p}$ which is absent in $pp$. This process grows as $(\ln \sqrt{s}{)}^2$ and becomes significant when energy of collision increases. Inclusive cross sections of $p\bar{p}$ interaction exceed inclusive cross sections of $pp$. Theoretical estimation of the ratio of $p\bar{p}$ to $pp$ at energy $\sqrt{s}=900$ GeV gives $R=1.12\pm 0.03$. The UA1 data on $p\bar{p}$ transverse momentum distribution are about 1.2 -- 1.3 times higher than the CMS, ATLAS and ALICE data on $pp$ at energy $\sqrt{s}=900$ GeV.

16 pages, 4 figures, preprint submitted to Physics Letters B

References in corpus (2)

• Transverse momentum spectra of charged particles in proton-proton collisions at $\sqrt{s}=900$ GeV with ALICE at the LHC
• How many of the scaling trends in $pp$ collisions will be violated at sqrt{s_NN} = 14 TeV ? - Predictions from Monte Carlo quark-gluon string model