English

Alignment in Gamma-Hadron Families of Cosmic Rays

High Energy Physics - Phenomenology 2016-08-24 v1 High Energy Physics - Theory Nuclear Theory

Abstract

Alignment of main fluxes of energy in a target plane is found in families of cosmic ray particles detected in deep lead X-ray chambers. The fraction of events with alignment is unexpectedly large for families with high energy and large number of hadrons. This can be considered as evidence for the existence of coplanar scattering of secondary particles in interaction of particles with superhigh energy, E0>1016E_0 > 10^{16} eV. Data analysis suggests that production of most aligned groups occurs low above the chamber and is characterized by a coplanar scattering and quasiscaling spectrum of secondaries in the fragmentation region. The most elaborated hypothesis for explanation of alignment is related to the quark-gluon string rupture. However, the problem of theoretical interpretation of our results still remains open.

Keywords

Cite

@article{arxiv.hep-ph/9408247,
  title  = {Alignment in Gamma-Hadron Families of Cosmic Rays},
  author = {V. V. Kopenkin and A. K. Managadze and I. V. Rakobolskaya and T. M. Roganova},
  journal= {arXiv preprint arXiv:hep-ph/9408247},
  year   = {2016}
}

Comments

15 pages, 2 tables, 6 figures (not included), Stanford University preprint SU-ITP-94-25