Accelerator measurements needed to resolve uncertainties in primary cosmic ray composition and inelasticity

Details Accelerator measurements needed to resolve uncertainties in primary cosmic ray composition and inelasticity Accelerator measurements needed to resolve uncertainties in primary cosmic ray composition and inelasticity

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrvd..57.4361c&link_type=abstract

Physical Review D (Particles and Fields), Volume 57, Issue 7, 1 April 1998, pp.4361-4366

Physics

Cosmic-Ray Interactions

Scientific paper

We discuss an intrinsic ambiguity on the interpretation of results on cosmic-ray physics, related to the impossibility of deducing two unknowns: the chemical composition of primary cosmic rays and the dynamics of particle interactions in the fragmentation region, based only on a single measurement. We indicate how measurements of particle production at and near zero degrees-at extreme values of rapidity (or pseudorapidity)-can overcome these uncertainties. Experiments of this nature are possible at the Fermilab Tevatron and will be possible at the CERN Large Hadron Collider, and should resolve the questions concerning the interpretation of cosmic ray data up to the highest measured energies.

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