Abstract
The MicroBooNE detector is a liquid argon time projection chamber at Fermilab designed to study short-baseline neutrino oscillations and neutrino-argon interaction cross-section. Due to its location near the surface, a good understanding of cosmic muons as a source of backgrounds is of fundamental importance for the experiment. We present a method of using an external 0.5 m (L) × 0.5 m (W) muon counter stack, installed above the main detector, to determine the cosmic-ray reconstruction efficiency in MicroBooNE. Data are acquired with this external muon counter stack placed in three different positions, corresponding to cosmic rays intersecting different parts of the detector. The data reconstruction efficiency of tracks in the detector is found to be ϵdata=(97.1±0.1 (stat) ± 1.4 (sys))%, in good agreement with the Monte Carlo reconstruction efficiency ϵMC = (97.4±0.1)%. This analysis represents a small-scale demonstration of the method that can be used with future data coming from a recently installed cosmic-ray tagger system, which will be able to tag ≈80% of the cosmic rays passing through the MicroBooNE detector.
Original language | English (US) |
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Article number | P12030 |
Journal | Journal of Instrumentation |
Volume | 12 |
Issue number | 12 |
DOIs | |
State | Published - Dec 20 2017 |
Bibliographical note
Funding Information:This material is based upon work supported by the following: the U.S. Department of Energy, Office of Science, Offices of High Energy Physics and Nuclear Physics; the U.S. National Science Foundation; the Swiss National Science Foundation; the Science and Technology Facilities Council of the United Kingdom; and The Royal Society (United Kingdom). Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. The Muon Counter Stack and its dedicated DAQ were provided by the Virginia Polytechnic Institute and State University externally to the MicroBooNE collaboration using spare electronics from the Double Chooz experiment provided by Columbia University’s Nevis Laboratories.
Funding Information:
This material is based upon work supported by the following: the U.S. Department of Energy, Office of Science, Offices of High Energy Physics and Nuclear Physics; the U.S. National Science Foundation; the Swiss National Science Foundation; the Science and Technology Facilities Council of the United Kingdom; and The Royal Society (United Kingdom). Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. The Muon Counter Stack and its dedicated DAQ were provided by the Virginia Polytechnic Institute and State University externally to the MicroBooNE collaboration using spare electronics from the Double Chooz experiment provided by Columbia University's Nevis Laboratories.
Publisher Copyright:
© 2017 IOP Publishing Ltd and Sissa Medialab.
Keywords
- Data reduction methods
- Neutrino detectors
- Performance of High Energy Physics Detectors
- Time projection chambers