Photoproduction total cross section and shower development
F. Cornet (Granada U.&CAFPE), C. A. Garcia Canal (La Plata U.), A., Grau (Granada U.&CAFPE), G. Pancheri (INFN, Frascati), S. J. Sciutto (La, Plata U.)
TL;DR
This paper models the ultra-high energy photoproduction cross section using QCD minijets and soft-gluon resummation, integrating it into AIRES to simulate cosmic ray photon showers and analyze observable impacts.
Contribution
It introduces a novel model for the photoproduction cross section at high energies and applies it to simulate and study cosmic ray photon-induced air showers.
Findings
New cross section model affects muon production in simulations
Enhanced understanding of photon-induced shower development
Comparison shows differences with previous models
Abstract
The total photoproduction cross section at ultra-high energies is obtained using a model based on QCD minijets and soft-gluon resummation and the ansatz that infrared gluons limit the rise of total cross sections. This cross section is introduced into the Monte Carlo system AIRES to simulate extended air-showers initiated by cosmic ray photons. The impact of the new photoproduction cross section on common shower observables, especially those related to muon production, is compared with previous results.
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