Measurement of the π− -Ar total hadronic cross section at the LArIAT experiment
Metadatos
Mostrar el registro completo del ítemEditorial
American Physical Society
Fecha
2022-09-22Referencia bibliográfica
Gramellini, E... [et al.]. Measurement of the π− -Ar total hadronic cross section at the LArIAT experiment. PHYSICAL REVIEW D 106, 052009 (2022). DOI: [10.1103/PhysRevD.106.052009]
Patrocinador
Fermi Research Alliance, LLC (FRA) DE-AC02-07CH11359; National Science Foundation (NSF); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) 233511/2014-8; Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) 001; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) 16/22738-0; Polish National Science Centre 2013/09/N/ST2/02793; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); Royal Society of London; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science 25105008Resumen
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 ATestbeam (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 MeVand 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.