Measurement of the π- -Ar total hadronic cross section at the LArIAT experiment

(LArIAT Collaboration)

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Abstract

We present the first measurement of the negative pion total hadronic cross section on argon in a restricted phase space, which we performed at the Liquid Argon In A Testbeam (LArIAT) experiment. All hadronic reaction channels, as well as hadronic elastic interactions with scattering angle greater than 5° are included. The pions have kinetic energies in the range 100-700 MeV and are produced by a beam of charged particles impinging on a solid target at the Fermilab test beam facility. LArIAT employs a 0.24 ton active mass liquid argon time projection chamber (LArTPC) to measure the pion hadronic interactions. For this measurement, LArIAT has developed the "thin slice method,"a new technique to measure cross sections with LArTPCs. While moderately higher, our measurement of the π - Ar total hadronic cross section is generally in agreement with the geant4 prediction.

Original languageEnglish (US)
Article number052009
JournalPhysical Review D
Volume106
Issue number5
DOIs
StatePublished - Sep 1 2022

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© 2022 American Physical Society.

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