2 research outputs found
Measurement of the (, Ar) total hadronic cross section at the LArIAT experiment
We present the first measurement of the negative pion total hadronic cross
section on argon, 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~degrees are included. The
pions have a 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 generally higher than the
prediction, our measurement of the (,Ar) total hadronic cross section is
in agreement with the prediction of the Geant4 model when considering a model
uncertainty of 5.1\%.Comment: 15 pages, 15 figures, 3 tables, accepted by PR
The Liquid Argon In A Testbeam (LArIAT) Experiment
The LArIAT liquid argon time projection chamber, placed in a tertiary beam of
charged particles at the Fermilab Test Beam Facility, has collected large
samples of pions, muons, electrons, protons, and kaons in the momentum range
300-1400 MeV/c. This paper describes the main aspects of the detector and
beamline, and also reports on calibrations performed for the detector and
beamline components