SMuK 2023 – scientific programme
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T: Fachverband Teilchenphysik
T 28: Forward Physics
T 28.2: Talk
Tuesday, March 21, 2023, 17:15–17:30, HSZ/0101
LHCb for astroparticle physics: Prompt production of identified charged hadrons — Johannes Albrecht1, •Julian Boelhauve1, Hans Dembinski1, and Michael Schmelling2 — 1TU Dortmund University, Dortmund, Germany — 2Max Planck Institute for Nuclear Physics, Heidelberg, Germany
A long-standing issue in the field of cosmic-ray research is the discrepancy in the number of muons produced in high-energy air showers between observations and simulation, referred to as the Muon Puzzle. Precision measurements of hadron production in the forward region are needed to validate and improve the hadronic-interaction models used in the simulation of air showers, with the aim of solving the Muon Puzzle. In this context, measuring the differential cross-section of prompt production of identified long-lived charged hadrons as a function of transverse momentum and pseudorapidity is of great importance.
An analysis in which this differential cross-section is determined for proton–proton and proton–lead collisions is presented in this talk. The corresponding data samples were recorded with the LHCb experiment at centre-of-mass energies of 13 TeV and 8.16 TeV in the nucleon–nucleon system, respectively. The focus of the talk is placed on the calibration of the particle-identification response of the detector, which is essential to an accurate measurement of the fractions of the three most commonly produced hadrons, i.e. pions, kaons and protons, present in the data.
Supported by DFG (SFB 1491).