Measurement of Through-Going Particle Momentum By Means Of Multiple Scattering With The ICARUS T600 TPC

Details Measurement of Through-Going Particle Momentum By Means Of Multiple Scattering With The ICARUS T600 TPC Measurement of Through-Going Particle Momentum By Means Of Multiple Scattering With The ICARUS T600 TPC

2006-06-02

arxiv.org/abs/hep-ex/0606006v1

Eur.Phys.J.C48:667-676,2006

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1140/epjc/s10052-006-0051-3

The ICARUS collaboration has demonstrated, following the operation of a 600 ton (T600) detector at shallow depth, that the technique based on liquid Argon TPCs is now mature. The study of rare events, not contemplated in the Standard Model, can greatly benefit from the use of this kind of detectors. In particular, a deeper understanding of atmospheric neutrino properties will be obtained thanks to the unprecedented quality of the data ICARUS provides. However if we concentrate on the T600 performance, most of the $\nu_\mu$ charged current sample will be partially contained, due to the reduced dimensions of the detector. In this article, we address the problem of how well we can determine the kinematics of events having partially contained tracks. The analysis of a large sample of atmospheric muons collected during the T600 test run demonstrate that, in case the recorded track is at least one meter long, the muon momentum can be reconstructed by an algorithm that measures the Multiple Coulomb Scattering along the particle's path. Moreover, we show that momentum resolution can be improved by a factor two using an algorithm based on the Kalman Filtering technique.

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