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arXiv · 2301.13137

Multiple pion pair production in a Regge-based model

R. Schicker·L. Jenkovszky
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Abstract

Central diffractive event topologies at the LHC energies can be identified by two different approaches. First, the forward scattered protons can be measured in Roman pots. Second, a veto on hadronic activity away from midrapidity can be imposed to define a double-gap topology. Such a double-gap topology trigger has been implemented by the ALICE collaboration in Run 1 and Run 2 of the LHC. The analysis of these events allows to determine the charged-particle multiplicity within the acceptance. The excellent particle identification capabilities of ALICE allows to study two-track events both in the pion and kaon sector. Events with measured charged particle multiplicity larger than two can arise from multiple pair production. A Regge-based approach for modeling such multiple pair production is presented.

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R. Schicker, L. Jenkovszky. 2023-01-30. Multiple pion pair production in a Regge-based model. https://arxiv.org/abs/2301.13137

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