Recent results from the cosmic ray program of the NA61/SHINE experiment

NA61/SHINE is a fixed target experiment designed to study hadron-proton, hadron-nucleus and nucleus-nucleus interactions at the CERN Super-Proton-Synchrotron. In this paper we summarize the results from pion-carbon collisions recorded at beam momenta of 158 and 350 GeV=c. Hadron production measureme...

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Bibliographic Details
Published in:EPJ Web of conferences 2019, Vol.208, p.5006
Main Author: Prado, Raul R.
Format: Article
Language:English
Subjects:
Baryons
Computer simulation
Cosmic ray showers
Cosmic rays
Interaction models
Muons
Nuclei (nuclear physics)
Pions
Protons
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Summary:NA61/SHINE is a fixed target experiment designed to study hadron-proton, hadron-nucleus and nucleus-nucleus interactions at the CERN Super-Proton-Synchrotron. In this paper we summarize the results from pion-carbon collisions recorded at beam momenta of 158 and 350 GeV=c. Hadron production measurements in these types of interactions is of fundamental importance for the understanding of the muon production in extensive air showers. In particular, production of (anti)baryons and ρ 0 are mechanisms responsible for increasing the number of muons which reach the ground. The underestimation of the (anti)baryons or ρ 0 production rates in current hadronic interaction models could be one of the sources of the excess of muons observed by cosmic ray experiments. The results on the production spectra of π ± , K ± , p, ¯p, Λ , ¯Λ, K 0 S , ρ 0 , ω and K *0 are presented, as well as their comparison to predictions of hadronic interaction models currently used in air shower simulations.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201920805006