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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Calorimetry for low-energy electrons using charge and light in liquid argon

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Author(s):
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Foreman, W. [1, 2] ; Acciarri, R. [3] ; Asaadi, J. A. [4] ; Badgett, W. [3] ; Blaszczyk, F. D. M. [5] ; Bouabid, R. [1] ; Bromberg, C. [6] ; Carey, R. [5] ; Cavanna, F. [7, 3] ; Aleman, J. I. Cevallos [1] ; Chatterjee, A. [4] ; Evans, J. [8] ; Falcone, A. [4] ; Flanagan, W. [9, 10] ; Fleming, B. T. [7] ; Garcia-Gamez, D. [8, 11] ; Gelli, B. [12] ; Ghosh, T. [13] ; Gomes, R. A. [13] ; Gramellini, E. [7, 3] ; Gran, R. [14] ; Hamilton, P. [15] ; Hill, C. [8] ; Ho, J. [1] ; Hugon, J. [16] ; Iwai, E. [17] ; Kearns, E. [5] ; Kemp, E. [12] ; Kobilarcik, T. [3] ; Kordosky, M. [18] ; Kryczynski, P. [19, 3] ; Lang, K. [9] ; Linehan, R. [5] ; Machado, A. A. B. [12] ; Maruyama, T. [17] ; Metcalf, W. [16] ; Moura, C. A. [20] ; Nichol, R. [21] ; Nunes, M. [12] ; Nutini, I. [3, 22] ; Olivier, A. [16, 23] ; Palamara, O. [7, 3] ; Paley, J. [3] ; Paulucci, L. [20] ; Pulliam, G. [15] ; Raaf, J. L. [3] ; Rebel, B. [24, 3] ; Rodrigues, O. [15, 13] ; Santos, L. Mendes [12] ; Schmitz, D. W. [1] ; Segreto, E. [12] ; Smith, D. [5] ; Soderberg, M. [15] ; Spagliardi, F. [8, 25] ; John, J. M. St. [26] ; Stancari, M. [3] ; Szelc, A. M. [8] ; Tzanov, M. [16] ; Walker, D. [16] ; Williams, Z. [4] ; Yang, T. [3] ; Yu, J. [4] ; Zhang, S. [5] ; Collaboration, LArIAT
Total Authors: 64
Affiliation:
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[1] Univ Chicago, Chicago, IL 60637 - USA
[2] IIT, Chicago, IL 60616 - USA
[3] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 - USA
[4] Univ Texas Arlington, Arlington, TX 76019 - USA
[5] Boston Univ, Boston, MA 02215 - USA
[6] Michigan State Univ, E Lansing, MI 48824 - USA
[7] Yale Univ, New Haven, CT 06520 - USA
[8] Univ Manchester, Manchester M13 9PL, Lancs - England
[9] Univ Texas Austin, Austin, TX 78712 - USA
[10] Univ Dallas, Irving, TX 75062 - USA
[11] Univ Granada, Granada 18010 - Spain
[12] Univ Estadual Campinas, BR-13083859 Campinas, SP - Brazil
[13] Univ Fed Goias, BR-74690900 Goias - Brazil
[14] Univ Minnesota, Duluth, MN 55812 - USA
[15] Syracuse Univ, Syracuse, NY 13244 - USA
[16] Louisiana State Univ, Baton Rouge, LA 70803 - USA
[17] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801 - Japan
[18] Coll William & Mary, Williamsburg, VA 23187 - USA
[19] Inst Nucl Phys PAN, PL-31342 Krakow - Poland
[20] Univ Fed ABC, BR-09210580 Santo Andre, SP - Brazil
[21] UCL, London WC1E 6BT - England
[22] INFN, I-00186 Rome - Italy
[23] Univ Rochester, 601 Elmwood Ave, Rochester, NY 14627 - USA
[24] Univ Wisconsin, Madison, WI 53706 - USA
[25] Univ Oxford, Oxford OX1 3PJ - England
[26] Univ Cincinnati, Cincinnati, OH 45221 - USA
Total Affiliations: 26
Document type: Journal article
Source: Physical Review D; v. 101, n. 1 JAN 22 2020.
Web of Science Citations: 0
Abstract

Precise calorimetric reconstruction of 5-50 MeV electrons in liquid argon time projection chambers (LArTPCs) will enable the study of astrophysical neutrinos in DUNE and could enhance the physics reach of oscillation analyses. Liquid argon scintillation light has the potential to improve energy reconstruction for low-energy electrons over charge-based measurements alone. Here we demonstrate light-augmented calorimetry for low-energy electrons in a single-phase LArTPC using a sample of Michel electrons from decays of stopping cosmic muons in the LArIAT experiment at Fermilab. Michel electron energy spectra are reconstructed using both a traditional charge-based approach as well as a more holistic approach that incorporates both charge and light. A maximum-likelihood fitter, using LArIAT's well-tuned simulation, is developed for combining these quantities to achieve optimal energy resolution. A sample of isolated electrons is simulated to better determine the energy resolution expected for astrophysical electron-neutrino charged-current interaction final states. In LArIAT, which has very low wire noise and an average light yield of 18 pe/MeV, an energy resolution of sigma/E similar or equal to 9.3%/root E circle plus 1.3% is achieved. Samples are then generated with varying wire noise levels and light yields to gauge the impact of light-augmented calorimetry in larger LArTPCs. At a charge-readout signal-to-noise of S/N similar or equal to 30, for example, the energy resolution for electrons below 40 MeV is improved by 10%, approximate to 120%, and approximate to 40% over charge-only calorimetry for average light yields of 10 pe/MeV, 20 pe/MeV, and 100 pe/MeV, respectively. (AU)

FAPESP's process: 16/22738-0 - Development of liquid argon detectors for neutrino physics
Grantee:Ernesto Kemp
Support type: Scholarships abroad - Research