Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC

被引：25

作者：

Acciarri, R. ^{[7
]}

Adams, C. ^{[28
]}

An, R. ^{[8
]}

Anthony, J. ^{[3
]}

Asaadi, J. ^{[25
]}

Auger, M. ^{[1
]}

Bagby, L. ^{[7
]}

Balasubramanian, S. ^{[28
]}

Baller, B. ^{[7
]}

Barnes, C. ^{[14
]}

Barr, G. ^{[17
]}

Bass, M. ^{[17
]}

Bay, F. ^{[26
]}

Bishai, M. ^{[2
]}

Blake, A. ^{[10
]}

Bolton, T. ^{[9
]}

Bugel, L. ^{[13
]}

Camilleri, L. ^{[6
]}

Caratelli, D. ^{[6
]}

Carls, B. ^{[7
]}

Fernandez, R. Castillo ^{[7
]}

Cavanna, F. ^{[7
]}

Chen, H. ^{[2
]}

Church, E. ^{[18
]}

Cianci, D. ^{[6
,12
]}

Cohen, E. ^{[23
]}

Collin, G. H. ^{[13
]}

Conrad, J. M. ^{[13
]}

Convery, M. ^{[21
]}

Crespo-Anadon, J. I. ^{[6
]}

Del Tutto, M. ^{[17
]}

Devitt, D. ^{[10
]}

Dytman, S. ^{[19
]}

Eberly, B. ^{[21
]}

Ereditato, A. ^{[1
]}

Sanchez, L. Escudero ^{[3
]}

Esquivel, J. ^{[22
]}

Fleming, B. T. ^{[28
]}

Foreman, W. ^{[4
]}

Furmanski, A. P. ^{[12
]}

Garcia-Gamez, D. ^{[12
]}

Garvey, G. T. ^{[11
]}

Genty, V. ^{[6
]}

Goeldi, D. ^{[1
]}

Gollapinni, S. ^{[9
,24
]}

Graf, N. ^{[19
]}

Gramellini, E. ^{[28
]}

Greenlee, H. ^{[7
]}

Grosso, R. ^{[5
]}

Guenette, R. ^{[17
]}

机构：

[1] Univ Bern, CH-3012 Bern, Switzerland

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] Univ Cambridge, Cambridge CB3 0HE, England

[4] Univ Chicago, Chicago, IL 60637 USA

[5] Univ Cincinnati, Cincinnati, OH 45221 USA

[6] Columbia Univ, New York, NY 10027 USA

[7] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

[8] IIT, Chicago, IL 60616 USA

[9] Kansas State Univ, Manhattan, KS 66506 USA

[10] Univ Lancaster, Lancaster LA1 4YW, England

[11] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[12] Univ Manchester, Manchester M13 9PL, Lancs, England

[13] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[14] Univ Michigan, Ann Arbor, MI 48109 USA

[15] New Mexico State Univ, Las Cruces, NM 88003 USA

[16] Otterbein Univ, Westerville, OH 43081 USA

[17] Univ Oxford, Oxford OX1 3RH, England

[18] Pacific Northwest Natl Lab, Richland, WA 99352 USA

[19] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[20] St Marys Univ Minnesota, Winona, MN 55987 USA

[21] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[22] Syracuse Univ, Syracuse, NY 13244 USA

[23] Tel Aviv Univ, IL-69978 Tel Aviv, Israel

[24] Univ Tennessee, Knoxville, TN 37996 USA

[25] Univ Texas Arlington, Arlington, TX 76019 USA

[26] TUBITAK Space Technol Res Inst, METU Campus, TR-06800 Ankara, Turkey

[27] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA 24061 USA

[28] Yale Univ, New Haven, CT 06520 USA

来源：

JOURNAL OF INSTRUMENTATION | 2017年 / 12卷

基金：

美国能源部; 瑞士国家科学基金会; 英国科学技术设施理事会; 美国国家科学基金会;

关键词：

Neutrino detectors; Noble liquid detectors (scintillation; ionization; double-phase); Performance of High Energy Physics Detectors; Time projection chambers; LIQUID ARGON; NEUTRINO BURST; SPECTRUM;

D O I：

10.1088/1748-0221/12/09/P09014

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons. Results are presented on the reconstruction of Michel electrons produced by the decay at rest of cosmicray muons. Michel electrons are abundantly produced in the TPC, and given their well known energy spectrum can be used to study MicroBooNE's detector response to low-energy electrons (electrons with energies up to similar to 50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of similar to 14,000 Michel electron candidates is obtained. Most of this article is dedicated to studying the impact of radiative photons produced by Michel electrons on the accuracy and resolution of their energy measurement. In this energy range, ionization and bremsstrahlung photon production contribute similarly to electron energy loss in argon, leading to a complex electron topology in the TPC. By profiling the performance of the reconstruction algorithm on simulation we show that the ability to identify and include energy deposited by radiative photons leads to a significant improvement in the energy measurement of low-energy electrons. The fractional energy resolution we measure improves from over 30% to similar to 20% when we attempt to include radiative photons in the reconstruction. These studies are relevant to a large number of analyses which aim to study neutrinos by measuring electrons produced by nu(e) interactions over a broad energy range.

引用

页数：26

共 50 条

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