On the Problem of High Transverse Momenta in the Interactions of Hadrons at Energies about 1016 eV

Details On the Problem of High Transverse Momenta in the Interactions of Hadrons at Energies about 1016 eV On the Problem of High Transverse Momenta in the Interactions of Hadrons at Energies about 1016 eV

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....3.1555s&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

In several cosmic ray experiments with X-ray chambers exposed on mountain altitudes and in stratosphere there have been observed cases interpreted as a result of interactions, in which particles with extremely high transverse momenta are produced. Such particles could be produced in semihard parton interactions but it is known that the cross-section for such on interaction is very small. In this paper we try to find out how many particles with the highest energies in a family can have a very high pt without contradiction to the fundamental laws of physics i.e. the principles of quantum mechanics and relativistic mechanics. We formulate a simplified model of the nucleon nucleus collision and we calculate the average number of semihard interactions in nucleon air nucleus collision at 2 · 1016 eV . The calculations was made for two different sets of the model parameters. For the first we obtain one semihard interaction resulting in two partons with transverse momenta close to 20 GeV /c per one nucleon nucleus collision. For the second set we obtain one semihard interaction producing parton with transverse momenta close to 60 GeV /c per sixty collisions.

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