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

R. Acciarri, C. Adams, R. An, J. Anthony, J. Asaadi, M. Auger, L. Bagby, S. Balasubramanian, B. Baller, C. Barnes, G. Barr, M. Bass, F. Bay, M. Bishai, A. Blake, T. Bolton, L. Bugel, L. Camilleri, D. Caratelli, B. Carls & 125 others R. Castillo Fernandez, F. Cavanna, H. Chen, E. Church, D. Cianci, E. Cohen, G. H. Collin, J. M. Conrad, M. Convery, J. I. Crespo-Anadón, M. Del Tutto, D. Devitt, S. Dytman, B. Eberly, A. Ereditato, L. Escudero Sanchez, J. Esquivel, B. T. Fleming, W. Foreman, A. P. Furmanski, D. Garcia-Gamez, G. T. Garvey, V. Genty, D. Goeldi, S. Gollapinni, N. Graf, E. Gramellini, H. Greenlee, R. Grosso, R. Guenette, A. Hackenburg, P. Hamilton, O. Hen, J. Hewes, C. Hill, J. Ho, G. Horton-Smith, E. C. Huang, C. James, J. Jan De Vries, C. M. Jen, L. Jiang, R. A. Johnson, J. Joshi, H. Jostlein, D. Kaleko, G. Karagiorgi, W. Ketchum, B. Kirby, M. Kirby, T. Kobilarcik, I. Kreslo, A. Laube, Y. Li, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, M. Luethi, B. Lundberg, X. Luo, A. Marchionni, C. Mariani, J. Marshall, D. A.Martinez Caicedo, V. Meddage, T. Miceli, G. B. Mills, J. Moon, M. Mooney, C. D. Moore, J. Mousseau, R. Murrells, D. Naples, P. Nienaber, J. Nowak, O. Palamara, V. Paolone, V. Papavassiliou, S. F. Pate, Z. Pavlovic, E. Piasetzky, D. Porzio, G. Pulliam, X. Qian, J. L. Raaf, A. Rafique, L. Rochester, C. Rudolf Von Rohr, B. Russell, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, J. Sinclair, E. L. Snider, Mitchell Soderberg, S. Söldner-Rembold, S. R. Soleti, P. Spentzouris, J. Spitz, J. St John, T. Strauss, K. A. Sutton, A. M. Szelc, N. Tagg, K. Terao, M. Thomson, M. Toups, Y. T. Tsai, S. Tufanli, T. Usher, R. G.Van De Water, B. Viren, M. Weber, D. A. Wickremasinghe, S. Wolbers, T. Wongjirad, K. Woodruff, T. Yang, L. Yates, G. P. Zeller, J. Zennamo, C. Zhang

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

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 cosmic-ray 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 ∼ 50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of ∼ 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 ∼ 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 νe interactions over a broad energy range.

Original languageEnglish (US)
Article numberP09014
JournalJournal of Instrumentation
Volume12
Issue number9
DOIs
StatePublished - Sep 14 2017

Fingerprint

Time Projection Chamber
Cosmic rays
Cosmic Rays
Argon
cosmic rays
chambers
projection
argon
Liquid
Electron
Electrons
Liquids
liquids
Energy
electrons
Photon
Photons
photons
electron energy
energy

Keywords

  • Neutrino detectors
  • Noble liquid detectors (scintillation, ionization, double-phase)
  • Performance of High Energy Physics Detectors
  • Time projection chambers

ASJC Scopus subject areas

  • Instrumentation
  • Mathematical Physics

Cite this

Acciarri, R., Adams, C., An, R., Anthony, J., Asaadi, J., Auger, M., ... Zhang, C. (2017). Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC. Journal of Instrumentation, 12(9), [P09014]. https://doi.org/10.1088/1748-0221/12/09/P09014

Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC. / Acciarri, R.; Adams, C.; An, R.; Anthony, J.; Asaadi, J.; Auger, M.; Bagby, L.; Balasubramanian, S.; Baller, B.; Barnes, C.; Barr, G.; Bass, M.; Bay, F.; Bishai, M.; Blake, A.; Bolton, T.; Bugel, L.; Camilleri, L.; Caratelli, D.; Carls, B.; Fernandez, R. Castillo; Cavanna, F.; Chen, H.; Church, E.; Cianci, D.; Cohen, E.; Collin, G. H.; Conrad, J. M.; Convery, M.; Crespo-Anadón, J. I.; Tutto, M. Del; Devitt, D.; Dytman, S.; Eberly, B.; Ereditato, A.; Sanchez, L. Escudero; Esquivel, J.; Fleming, B. T.; Foreman, W.; Furmanski, A. P.; Garcia-Gamez, D.; Garvey, G. T.; Genty, V.; Goeldi, D.; Gollapinni, S.; Graf, N.; Gramellini, E.; Greenlee, H.; Grosso, R.; Guenette, R.; Hackenburg, A.; Hamilton, P.; Hen, O.; Hewes, J.; Hill, C.; Ho, J.; Horton-Smith, G.; Huang, E. C.; James, C.; De Vries, J. Jan; Jen, C. M.; Jiang, L.; Johnson, R. A.; Joshi, J.; Jostlein, H.; Kaleko, D.; Karagiorgi, G.; Ketchum, W.; Kirby, B.; Kirby, M.; Kobilarcik, T.; Kreslo, I.; Laube, A.; Li, Y.; Lister, A.; Littlejohn, B. R.; Lockwitz, S.; Lorca, D.; Louis, W. C.; Luethi, M.; Lundberg, B.; Luo, X.; Marchionni, A.; Mariani, C.; Marshall, J.; Caicedo, D. A.Martinez; Meddage, V.; Miceli, T.; Mills, G. B.; Moon, J.; Mooney, M.; Moore, C. D.; Mousseau, J.; Murrells, R.; Naples, D.; Nienaber, P.; Nowak, J.; Palamara, O.; Paolone, V.; Papavassiliou, V.; Pate, S. F.; Pavlovic, Z.; Piasetzky, E.; Porzio, D.; Pulliam, G.; Qian, X.; Raaf, J. L.; Rafique, A.; Rochester, L.; Rohr, C. Rudolf Von; Russell, B.; Schmitz, D. W.; Schukraft, A.; Seligman, W.; Shaevitz, M. H.; Sinclair, J.; Snider, E. L.; Soderberg, Mitchell; Söldner-Rembold, S.; Soleti, S. R.; Spentzouris, P.; Spitz, J.; John, J. St; Strauss, T.; Sutton, K. A.; Szelc, A. M.; Tagg, N.; Terao, K.; Thomson, M.; Toups, M.; Tsai, Y. T.; Tufanli, S.; Usher, T.; De Water, R. G.Van; Viren, B.; Weber, M.; Wickremasinghe, D. A.; Wolbers, S.; Wongjirad, T.; Woodruff, K.; Yang, T.; Yates, L.; Zeller, G. P.; Zennamo, J.; Zhang, C.

In: Journal of Instrumentation, Vol. 12, No. 9, P09014, 14.09.2017.

Research output: Contribution to journalArticle

Acciarri, R, Adams, C, An, R, Anthony, J, Asaadi, J, Auger, M, Bagby, L, Balasubramanian, S, Baller, B, Barnes, C, Barr, G, Bass, M, Bay, F, Bishai, M, Blake, A, Bolton, T, Bugel, L, Camilleri, L, Caratelli, D, Carls, B, Fernandez, RC, Cavanna, F, Chen, H, Church, E, Cianci, D, Cohen, E, Collin, GH, Conrad, JM, Convery, M, Crespo-Anadón, JI, Tutto, MD, Devitt, D, Dytman, S, Eberly, B, Ereditato, A, Sanchez, LE, Esquivel, J, Fleming, BT, Foreman, W, Furmanski, AP, Garcia-Gamez, D, Garvey, GT, Genty, V, Goeldi, D, Gollapinni, S, Graf, N, Gramellini, E, Greenlee, H, Grosso, R, Guenette, R, Hackenburg, A, Hamilton, P, Hen, O, Hewes, J, Hill, C, Ho, J, Horton-Smith, G, Huang, EC, James, C, De Vries, JJ, Jen, CM, Jiang, L, Johnson, RA, Joshi, J, Jostlein, H, Kaleko, D, Karagiorgi, G, Ketchum, W, Kirby, B, Kirby, M, Kobilarcik, T, Kreslo, I, Laube, A, Li, Y, Lister, A, Littlejohn, BR, Lockwitz, S, Lorca, D, Louis, WC, Luethi, M, Lundberg, B, Luo, X, Marchionni, A, Mariani, C, Marshall, J, Caicedo, DAM, Meddage, V, Miceli, T, Mills, GB, Moon, J, Mooney, M, Moore, CD, Mousseau, J, Murrells, R, Naples, D, Nienaber, P, Nowak, J, Palamara, O, Paolone, V, Papavassiliou, V, Pate, SF, Pavlovic, Z, Piasetzky, E, Porzio, D, Pulliam, G, Qian, X, Raaf, JL, Rafique, A, Rochester, L, Rohr, CRV, Russell, B, Schmitz, DW, Schukraft, A, Seligman, W, Shaevitz, MH, Sinclair, J, Snider, EL, Soderberg, M, Söldner-Rembold, S, Soleti, SR, Spentzouris, P, Spitz, J, John, JS, Strauss, T, Sutton, KA, Szelc, AM, Tagg, N, Terao, K, Thomson, M, Toups, M, Tsai, YT, Tufanli, S, Usher, T, De Water, RGV, Viren, B, Weber, M, Wickremasinghe, DA, Wolbers, S, Wongjirad, T, Woodruff, K, Yang, T, Yates, L, Zeller, GP, Zennamo, J & Zhang, C 2017, 'Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC', Journal of Instrumentation, vol. 12, no. 9, P09014. https://doi.org/10.1088/1748-0221/12/09/P09014
Acciarri, R. ; Adams, C. ; An, R. ; Anthony, J. ; Asaadi, J. ; Auger, M. ; Bagby, L. ; Balasubramanian, S. ; Baller, B. ; Barnes, C. ; Barr, G. ; Bass, M. ; Bay, F. ; Bishai, M. ; Blake, A. ; Bolton, T. ; Bugel, L. ; Camilleri, L. ; Caratelli, D. ; Carls, B. ; Fernandez, R. Castillo ; Cavanna, F. ; Chen, H. ; Church, E. ; Cianci, D. ; Cohen, E. ; Collin, G. H. ; Conrad, J. M. ; Convery, M. ; Crespo-Anadón, J. I. ; Tutto, M. Del ; Devitt, D. ; Dytman, S. ; Eberly, B. ; Ereditato, A. ; Sanchez, L. Escudero ; Esquivel, J. ; Fleming, B. T. ; Foreman, W. ; Furmanski, A. P. ; Garcia-Gamez, D. ; Garvey, G. T. ; Genty, V. ; Goeldi, D. ; Gollapinni, S. ; Graf, N. ; Gramellini, E. ; Greenlee, H. ; Grosso, R. ; Guenette, R. ; Hackenburg, A. ; Hamilton, P. ; Hen, O. ; Hewes, J. ; Hill, C. ; Ho, J. ; Horton-Smith, G. ; Huang, E. C. ; James, C. ; De Vries, J. Jan ; Jen, C. M. ; Jiang, L. ; Johnson, R. A. ; Joshi, J. ; Jostlein, H. ; Kaleko, D. ; Karagiorgi, G. ; Ketchum, W. ; Kirby, B. ; Kirby, M. ; Kobilarcik, T. ; Kreslo, I. ; Laube, A. ; Li, Y. ; Lister, A. ; Littlejohn, B. R. ; Lockwitz, S. ; Lorca, D. ; Louis, W. C. ; Luethi, M. ; Lundberg, B. ; Luo, X. ; Marchionni, A. ; Mariani, C. ; Marshall, J. ; Caicedo, D. A.Martinez ; Meddage, V. ; Miceli, T. ; Mills, G. B. ; Moon, J. ; Mooney, M. ; Moore, C. D. ; Mousseau, J. ; Murrells, R. ; Naples, D. ; Nienaber, P. ; Nowak, J. ; Palamara, O. ; Paolone, V. ; Papavassiliou, V. ; Pate, S. F. ; Pavlovic, Z. ; Piasetzky, E. ; Porzio, D. ; Pulliam, G. ; Qian, X. ; Raaf, J. L. ; Rafique, A. ; Rochester, L. ; Rohr, C. Rudolf Von ; Russell, B. ; Schmitz, D. W. ; Schukraft, A. ; Seligman, W. ; Shaevitz, M. H. ; Sinclair, J. ; Snider, E. L. ; Soderberg, Mitchell ; Söldner-Rembold, S. ; Soleti, S. R. ; Spentzouris, P. ; Spitz, J. ; John, J. St ; Strauss, T. ; Sutton, K. A. ; Szelc, A. M. ; Tagg, N. ; Terao, K. ; Thomson, M. ; Toups, M. ; Tsai, Y. T. ; Tufanli, S. ; Usher, T. ; De Water, R. G.Van ; Viren, B. ; Weber, M. ; Wickremasinghe, D. A. ; Wolbers, S. ; Wongjirad, T. ; Woodruff, K. ; Yang, T. ; Yates, L. ; Zeller, G. P. ; Zennamo, J. ; Zhang, C. / Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC. In: Journal of Instrumentation. 2017 ; Vol. 12, No. 9.
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title = "Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC",
abstract = "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 cosmic-ray 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 ∼ 50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of ∼ 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 ∼ 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 νe interactions over a broad energy range.",
keywords = "Neutrino detectors, Noble liquid detectors (scintillation, ionization, double-phase), Performance of High Energy Physics Detectors, Time projection chambers",
author = "R. Acciarri and C. Adams and R. An and J. Anthony and J. Asaadi and M. Auger and L. Bagby and S. Balasubramanian and B. Baller and C. Barnes and G. Barr and M. Bass and F. Bay and M. Bishai and A. Blake and T. Bolton and L. Bugel and L. Camilleri and D. Caratelli and B. Carls and Fernandez, {R. Castillo} and F. Cavanna and H. Chen and E. Church and D. Cianci and E. Cohen and Collin, {G. H.} and Conrad, {J. M.} and M. Convery and Crespo-Anad{\'o}n, {J. I.} and Tutto, {M. Del} and D. Devitt and S. Dytman and B. Eberly and A. Ereditato and Sanchez, {L. Escudero} and J. Esquivel and Fleming, {B. T.} and W. Foreman and Furmanski, {A. P.} and D. Garcia-Gamez and Garvey, {G. T.} and V. Genty and D. Goeldi and S. Gollapinni and N. Graf and E. Gramellini and H. Greenlee and R. Grosso and R. Guenette and A. Hackenburg and P. Hamilton and O. Hen and J. Hewes and C. Hill and J. Ho and G. Horton-Smith and Huang, {E. C.} and C. James and {De Vries}, {J. Jan} and Jen, {C. M.} and L. Jiang and Johnson, {R. A.} and J. Joshi and H. Jostlein and D. Kaleko and G. Karagiorgi and W. Ketchum and B. Kirby and M. Kirby and T. Kobilarcik and I. Kreslo and A. Laube and Y. Li and A. Lister and Littlejohn, {B. R.} and S. Lockwitz and D. Lorca and Louis, {W. C.} and M. Luethi and B. Lundberg and X. Luo and A. Marchionni and C. Mariani and J. Marshall and Caicedo, {D. A.Martinez} and V. Meddage and T. Miceli and Mills, {G. B.} and J. Moon and M. Mooney and Moore, {C. D.} and J. Mousseau and R. Murrells and D. Naples and P. Nienaber and J. Nowak and O. Palamara and V. Paolone and V. Papavassiliou and Pate, {S. F.} and Z. Pavlovic and E. Piasetzky and D. Porzio and G. Pulliam and X. Qian and Raaf, {J. L.} and A. Rafique and L. Rochester and Rohr, {C. Rudolf Von} and B. Russell and Schmitz, {D. W.} and A. Schukraft and W. Seligman and Shaevitz, {M. H.} and J. Sinclair and Snider, {E. L.} and Mitchell Soderberg and S. S{\"o}ldner-Rembold and Soleti, {S. R.} and P. Spentzouris and J. Spitz and John, {J. St} and T. Strauss and Sutton, {K. A.} and Szelc, {A. M.} and N. Tagg and K. Terao and M. Thomson and M. Toups and Tsai, {Y. T.} and S. Tufanli and T. Usher and {De Water}, {R. G.Van} and B. Viren and M. Weber and Wickremasinghe, {D. A.} and S. Wolbers and T. Wongjirad and K. Woodruff and T. Yang and L. Yates and Zeller, {G. P.} and J. Zennamo and C. Zhang",
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TY - JOUR

T1 - Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC

AU - Acciarri, R.

AU - Adams, C.

AU - An, R.

AU - Anthony, J.

AU - Asaadi, J.

AU - Auger, M.

AU - Bagby, L.

AU - Balasubramanian, S.

AU - Baller, B.

AU - Barnes, C.

AU - Barr, G.

AU - Bass, M.

AU - Bay, F.

AU - Bishai, M.

AU - Blake, A.

AU - Bolton, T.

AU - Bugel, L.

AU - Camilleri, L.

AU - Caratelli, D.

AU - Carls, B.

AU - Fernandez, R. Castillo

AU - Cavanna, F.

AU - Chen, H.

AU - Church, E.

AU - Cianci, D.

AU - Cohen, E.

AU - Collin, G. H.

AU - Conrad, J. M.

AU - Convery, M.

AU - Crespo-Anadón, J. I.

AU - Tutto, M. Del

AU - Devitt, D.

AU - Dytman, S.

AU - Eberly, B.

AU - Ereditato, A.

AU - Sanchez, L. Escudero

AU - Esquivel, J.

AU - Fleming, B. T.

AU - Foreman, W.

AU - Furmanski, A. P.

AU - Garcia-Gamez, D.

AU - Garvey, G. T.

AU - Genty, V.

AU - Goeldi, D.

AU - Gollapinni, S.

AU - Graf, N.

AU - Gramellini, E.

AU - Greenlee, H.

AU - Grosso, R.

AU - Guenette, R.

AU - Hackenburg, A.

AU - Hamilton, P.

AU - Hen, O.

AU - Hewes, J.

AU - Hill, C.

AU - Ho, J.

AU - Horton-Smith, G.

AU - Huang, E. C.

AU - James, C.

AU - De Vries, J. Jan

AU - Jen, C. M.

AU - Jiang, L.

AU - Johnson, R. A.

AU - Joshi, J.

AU - Jostlein, H.

AU - Kaleko, D.

AU - Karagiorgi, G.

AU - Ketchum, W.

AU - Kirby, B.

AU - Kirby, M.

AU - Kobilarcik, T.

AU - Kreslo, I.

AU - Laube, A.

AU - Li, Y.

AU - Lister, A.

AU - Littlejohn, B. R.

AU - Lockwitz, S.

AU - Lorca, D.

AU - Louis, W. C.

AU - Luethi, M.

AU - Lundberg, B.

AU - Luo, X.

AU - Marchionni, A.

AU - Mariani, C.

AU - Marshall, J.

AU - Caicedo, D. A.Martinez

AU - Meddage, V.

AU - Miceli, T.

AU - Mills, G. B.

AU - Moon, J.

AU - Mooney, M.

AU - Moore, C. D.

AU - Mousseau, J.

AU - Murrells, R.

AU - Naples, D.

AU - Nienaber, P.

AU - Nowak, J.

AU - Palamara, O.

AU - Paolone, V.

AU - Papavassiliou, V.

AU - Pate, S. F.

AU - Pavlovic, Z.

AU - Piasetzky, E.

AU - Porzio, D.

AU - Pulliam, G.

AU - Qian, X.

AU - Raaf, J. L.

AU - Rafique, A.

AU - Rochester, L.

AU - Rohr, C. Rudolf Von

AU - Russell, B.

AU - Schmitz, D. W.

AU - Schukraft, A.

AU - Seligman, W.

AU - Shaevitz, M. H.

AU - Sinclair, J.

AU - Snider, E. L.

AU - Soderberg, Mitchell

AU - Söldner-Rembold, S.

AU - Soleti, S. R.

AU - Spentzouris, P.

AU - Spitz, J.

AU - John, J. St

AU - Strauss, T.

AU - Sutton, K. A.

AU - Szelc, A. M.

AU - Tagg, N.

AU - Terao, K.

AU - Thomson, M.

AU - Toups, M.

AU - Tsai, Y. T.

AU - Tufanli, S.

AU - Usher, T.

AU - De Water, R. G.Van

AU - Viren, B.

AU - Weber, M.

AU - Wickremasinghe, D. A.

AU - Wolbers, S.

AU - Wongjirad, T.

AU - Woodruff, K.

AU - Yang, T.

AU - Yates, L.

AU - Zeller, G. P.

AU - Zennamo, J.

AU - Zhang, C.

PY - 2017/9/14

Y1 - 2017/9/14

N2 - 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 cosmic-ray 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 ∼ 50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of ∼ 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 ∼ 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 νe interactions over a broad energy range.

AB - 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 cosmic-ray 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 ∼ 50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of ∼ 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 ∼ 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 νe interactions over a broad energy range.

KW - Neutrino detectors

KW - Noble liquid detectors (scintillation, ionization, double-phase)

KW - Performance of High Energy Physics Detectors

KW - Time projection chambers

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U2 - 10.1088/1748-0221/12/09/P09014

DO - 10.1088/1748-0221/12/09/P09014

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VL - 12

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

IS - 9

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