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Feasibility Studies of Charge Exchange Measurements in pp Collisions at the LHC

Fehérkuti, Anna ; Veres, Gábor I.; Ulrich, Ralf 1; Pierog, Tanguy ORCID iD icon 1
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)

Abstract:

(1) Pions produced in the development of extended atmospheric cosmic ray air showers subsequently decay to muons. The measured yield of those muons is generally underestimated by current phenomenological models and event generators optimized for cosmic ray physics. The importance of those disagreements motivates the feasibility studies for testing these models at the Large Hadron Collider (LHC) energies, at the highest center-of-mass energies achievable in a laboratory. The interaction of a nucleus and a virtual pion created in a charge exchange reaction at the LHC is a similar process to those contributing to the development of air showers in case of cosmic rays. The crucial problem of such an analysis is the selection of charge exchange events with the highest possible efficiency and high purity from proton–proton collisions at the LHC. (2) For this we consider distributions of various measurable quantities given by event generators commonly used in cosmic ray physics. (3) We examine the expected distributions of energy deposited in different calorimeters of an LHC experiment. We consider the geometrical acceptance and energy resolution of the detectors at the Compact Muon Solenoid (CMS) experiment, as an example. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000151833
Veröffentlicht am 24.10.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 1099-4300
KITopen-ID: 1000151833
HGF-Programm 51.13.03 (POF IV, LK 01) Kosmische Strahlung Auger
Erschienen in Entropy
Verlag MDPI
Band 24
Heft 9
Seiten Art.-Nr.: 1188
Vorab online veröffentlicht am 25.08.2022
Schlagwörter charge exchange reaction, forward neutron, energy spectrum, ROC curve, Compact Muon Solenoid (CMS), zero degree calorimeter (ZDC), hadron forward calorimeter (HF), generator-level simulation, Cosmic Ray Monte Carlo (CRMC), muon puzzle
Nachgewiesen in Scopus
Web of Science
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