English

Composition of Primary Cosmic Rays Beyond the ``Knee''from Emulsion Chamber Observations

Astrophysics 2009-10-28 v1 High Energy Physics - Phenomenology

Abstract

We show that the simplest assumptions for the dynamics of particle production allow us to understand the fluxes of hadrons and photons at mountain altitudes as well as the structure of individual events. The analysis requires a heavy nuclear component of primary cosmic rays above the ``knee" in the spectrum with average mass number <A>=7.3±0.9<A> = 7.3 \pm 0.9.

Keywords

Cite

@article{arxiv.astro-ph/9602108,
  title  = {Composition of Primary Cosmic Rays Beyond the ``Knee''from Emulsion Chamber Observations},
  author = {C. G. S. Costa and F. Halzen and J. Bellandi and C. Salles},
  journal= {arXiv preprint arXiv:astro-ph/9602108},
  year   = {2009}
}

Comments

Revtex, 11 pages, 5 postscript figures ("\special" command used to embed figures at end of tex file). Compressed postscript version also available at http://phenom.physics.wisc.edu/pub/preprints/1996/madph-96-932.ps.Z or ftp://phenom.physics.wisc.edu/pub/preprints/1996/madph-96-932.ps.Z