Abstract
The Fermilab Short Baseline Neutrino (SBN) program aims to observe and reconstruct thousands of neutrino-argon interactions with its three detectors (SBND, MicroBooNE, and ICARUS-T600), using their hundred-ton scale Liquid Argon Time Projection Chambers to perform a rich physics analysis program, in particular focused on the search for sterile neutrinos. Given the relatively shallow depth of the detectors, the continuous flux of cosmic ray particles crossing their volumes introduces a constant background which can be falsely identified as part of the event of interest. Here we present the Cosmic Ray Tagger (CRT) system, a novel technique to tag and identify these crossing particles using scintillation modules which measure their time and coordinates relative to the internal events to the neutrino detector, with the intent of mitigating their effect in the event tracking reconstruction.
Highlights
The Fermilab Short Baseline Neutrino (SBN) program was proposed by three international collaborations to accomplish a wide spectrum of physics research
The modules are produced at the Laboratory for High Energy Physics (LHEP) in Bern, and are shipped to Fermilab after a quality inspection
Two different scintillator planes allow a crossing particle to be tagged, providing an “interaction vector”. This information can be extrapolated to the reconstruction algorithm of the liquid argon (LAr) time projection chamber (TPC), discriminating any related event within the volume associated to the interaction vector that could be mistakenly identified as part of a neutrino interaction event
Summary
Martin Auger 1 , Marco Del Tutto 2 , Antonio Ereditato 1 , Bonnie T. Fleming 3 , Damian Goeldi 1 , Elena Gramellini 3 , Roxanne Guenette 2 , Wesley Ketchum 4 , Igor Kreslo 1 , Ann Laube 2 , David Lorca 1, *, Matthias Luethi 1 , Christoph Rudolf Von Rohr 1 , James Sinclair 1 , Stefano Roberto Soleti 2 and Michele Weber 1. Received: 12 December 2016; Accepted: 6 February 2017; Published: 22 February 2017
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