Reconstruction and measurement of O(100) MeV energy electromagnetic activity from pi(0) -> gamma gamma decays in the MicroBooNE LArTPC

Adams, C.; Alrashed, M.; An, R.; Anthony, J.; Asaadi, J.; Ashkenazi, A.; Balasubramanian, S.; Baller, B.; Barnes, C.; Barr, G.; Basque, V; Bass, M.; Bay, F.; Berkman, S.; Bhanderi, A.; Bhat, A.; Bishai, M.; Blake, A.; Bolton, T.; Camilleri, L.; Caratelli, D.; Terrazas, I.; Carr, R.; Fernandez, R.; Cavanna, F.; Cerati, G.; Chen, Y.; Church, E.; Cianci, D.; Cohen, E.; Conrad, J.; Convery, M.; Cooper-Troendle, L.; Crespo-Anadon, J.; Del Tutto, M.; Devitt, D.; Diaz, A.; Domine, L.; Duffy, K.; Dytman, S.; Eberly, B.; Ereditato, A.; Sanchez, L.; Esquivel, J.; Evans, J.; Fitzpatrick, R.; Fleminga, B.; Foppiani, N.; Franco, D.; Furmanski, A.; Garcia-Gamez, D.; Gardiner, S.; Genty, V; Goeldi, D.; Gollapinni, S.; Goodwin, O.; Gramellini, E.; Green, P.; Greenlee, H.; Grosso, R.; Gu, L.; Gu, W.; Guenette, R.; Guzowski, P.; Hamilton, P.; Hen, O.; Hill, C.; Horton-Smith, G.; Hourlier, A.; Huang, E-C; Itay, R.; James, C.; de Vries, J.; Ji, X.; Jiang, L.; Jo, J.; Johnson, R.; Joshi, J.; Jwa, Y-J; Karagiorgi, G.; Ketchum, W.; Kirby, B.; Kirby, M.; Kobilarcik, T.; Kreslo, I; Lepetic, I; Li, Y.; Lister, A.; Littlejohn, B.; Lockwitz, S.; Lorca, D.; Louis, W.; Luethi, M.; Lundberg, B.; Luo, X.; Marchionni, A.; Marcocci, S.; Mariani, C.; Marshall, J.; Martin-Albo, J.; Caicedo, D.; Mason, K.; Mastbaum, A.; McConkey, N.; Meddage, V; Mettler, T.; Miller, K.; Mills, J.; Mistry, K.; Mogan, A.; Mohayai, T.; Moon, J.; Mooney, M.; Moore, C.; Mousseau, J.; Murphy, M.; Murrells, R.; Naples, D.; Neely, R.; Nienaber, P.; Nowak, J.; Palamara, O.; Pandey, V; Paolone, V; Papadopoulou, A.; Papavassiliou, V; Pate, S.; Paudel, A.; Pavlovic, Z.; Piasetzky, E.; Porzio, D.; Prince, S.; Pulliam, G.; Qian, X.; Raaf, J.; Rafique, A.; Ren, L.; Rochester, L.; Rogers, H.; Ross-Lonergan, M.; von Rohr, C.; Russell, B.; Scanavini, G.; Schmitz, D.; Schukraft, A.; Seligman, W.; Shaevitz, M.; Sharankova, R.; Sinclair, J.; Smith, A.; Snider, E.; Soderberg, M.; Soldner-Rembold, S.; Soleti, S.; Spentzouris, P.; Spitz, J.; Stancari, M.; St John, J.; Strauss, T.; Sutton, K.; Sword-Fehlberg, S.; Szelc, A.; Tagg, N.; Tang, W.; Terao, K.; Thornton, R.; Toups, M.; Tsai, Y-T; Tufanli, S.; Usher, T.; Van De Pontseele, W.; Van de Water, R.; Viren, B.; Weber, M.; Wei, H.; Wickremasinghe, D.; Williams, Z.; Wolbers, S.; Wongjirad, T.; Woodruff, K.; Wospakrik, M.; Wu, W.; Yang, T.; Yarbrough, G.; Yates, L.; Zeller, G.; Zennamo, J.; Zhang, C.

doi:10.1088/1748-0221/15/02/p02007

Reconstruction and measurement of O(100) MeV energy electromagnetic activity from pi(0) -> gamma gamma decays in the MicroBooNE LArTPC

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Adams C., Alrashed M., An R., Anthony J., Asaadi J., Ashkenazi A., ...More

JOURNAL OF INSTRUMENTATION, vol.15, no.2, 2020 (SCI-Expanded)

Publication Type: Article / Article
Volume: 15 Issue: 2
Publication Date: 2020
Doi Number: 10.1088/1748-0221/15/02/p02007
Journal Name: JOURNAL OF INSTRUMENTATION
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, Index Islamicus, INSPEC
Keywords: Noble liquid detectors (scintillation, ionization, double-phase), Pattern recognition, cluster finding, calibration and fitting methods, Performance of High Energy Physics Detectors, Time projection chambers
Middle East Technical University Affiliated: No

Abstract

We present results on the reconstruction of electromagnetic (EM) activity from photons produced in charged current nu(mu) interactions with final state pi(0)s. We employ a fully-automated reconstruction chain capable of identifying EM showers of O(100) MeV energy, relying on a combination of traditional reconstruction techniques together with novel machine-learning approaches. These studies demonstrate good energy resolution, and good agreement between data and simulation, relying on the reconstructed invariant pi(0) mass and other photon distributions for validation. The reconstruction techniques developed are applied to a selection of nu(mu) + Ar -> mu + pi(0) + X candidate events to demonstrate the potential for calorimetric separation of photons from electrons and reconstruction of pi(0) kinematics.