Accelerator Neutrinos

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Diffuse Supernova Neutrino Background Search at Super-Kamiokande

(2021)

Authors:

Super-Kamiokande Collaboration, :, K Abe, C Bronner, Y Hayato, K Hiraide, M Ikeda, S Imaizumi, J Kameda, Y Kanemura, Y Kataoka, S Miki, M Miura, S Moriyama, Y Nagao, M Nakahata, S Nakayama, T Okada, K Okamoto, A Orii, G Pronost, H Sekiya, M Shiozawa, Y Sonoda, Y Suzuki, A Takeda, Y Takemoto, A Takenaka, H Tanaka, S Watanabe, T Yano, S Han, T Kajita, K Okumura, T Tashiro, J Xia, GD Megias, D Bravo-Bergu, L Labarga, Ll Marti, B Zaldivar, BW Pointon, FDM Blaszczyk, E Kearns, JL Raaf, JL Stone, L Wan, T Wester, J Bian, NJ Griskevich, WR Kropp, S Locke, S Mine, MB Smy, HW Sobel, V Takhistov, J Hill, JY Kim, IT Lim, RG Park, B Bodur, K Scholberg, CW Walter, S Cao, L Bernard, A Coffani, O Drapier, S El Hedri, A Giampaolo, M Gonin, Th A Mueller, P Paganini, B Quilain, T Ishizuka, T Nakamura, JS Jang, JG Learned, LHV Anthony, D Martin, M Scott, AA Sztuc, Y Uchida, V Berardi, MG Catanesi, E Radicioni, NF Calabria, LN Machado, G De Rosa, G Collazuol, F Iacob, M Lamoureux, M Mattiazzi, N Ospina, L Ludovici, Y Maekawa, Y Nishimura, M Friend, T Hasegawa, T Ishida, T Kobayashi, M Jakkapu, T Matsubara, T Nakadaira, K Nakamura, Y Oyama, K Sakashita, T Sekiguchi, T Tsukamoto, Y Kotsar, Y Nakano, H Ozaki, T Shiozawa, AT Suzuki, Y Takeuchi, S Yamamoto, A Ali, Y Ashida, J Feng, S Hirota, T Kikawa, M Mori, T Nakaya, RA Wendell, K Yasutome, P Fernandez, N McCauley, P Mehta, KM Tsui, Y Fukuda, Y Itow, H Menjo, T Niwa, K Sato, M Tsukada, J Lagoda, SM Lakshmi, P Mijakowski, J Zalipska, J Jiang, CK Jung, C Vilela, MJ Wilking, C Yanagisawa, K Hagiwara, M Harada, T Horai, H Ishino, S Ito, H Kitagawa, Y Koshio, W Ma, N Piplani, S Sakai, G Barr, D Barrow, L Cook, A Goldsack, S Samani, D Wark, F Nova, T Boschi, F Di Lodovico, J Gao, J Migenda, M Taani, S Zsoldos, JY Yang, SJ Jenkins, M Malek, JM McElwee, O Stone, MD Thiesse, LF Thompson, H Okazawa, SB Kim, JW Seo, I Yu, K Nishijima, M Koshiba, K Iwamoto, K Nakagiri, Y Nakajima, N Ogawa, M Yokoyama, K Martens, MR Vagins, M Kuze, S Izumiyama, T Yoshida, M Inomoto, M Ishitsuka, H Ito, T Kinoshita, R Matsumoto, K Ohta, M Shinoki, T Suganuma, AK Ichikawa, K Nakamura, JF Martin, HA Tanaka, T Towstego, R Akutsu, V Gousy-Leblanc, M Hartz, A Konaka, P de Perio, NW Prouse, S Chen, BD Xu, Y Zhang, M Posiadala-Zezula, D Hadley, M O'Flaherty, B Richards, B Jamieson, J Walker, A Minamino, K Okamoto, G Pintaudi, S Sano, R Sasaki
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Measurement of the longitudinal diffusion of ionization electrons in the MicroBooNE detector

Journal of Instrumentation IOP Science 16:9 (2021) P09025

Authors:

P Abratenko, R An, J Anthony, J Asaadi, A Ashkenazi, S Balasubramanian, B Baller, C Barnes, G Barr, V Basque, L Bathe-Peters, O Benevides Rodrigues, S Berkman, A Bhanderi, A Bhat, M Bishai, A Blake, T Bolton, L Camilleri, D Caratelli, I Caro Terrazas, R Castillo Fernandez, F Cavanna, G Cerati, Y Chen, E Church, D Cianci, Jm Conrad, M Convery, L Cooper-Troendle, Ji Crespo-Anadon, M Del Tutto, Sr Dennis, D Devitt, R Diurba, R Dorrill, K Duffy, S Dytman, B Eberly, A Ereditato, Jj Evans, R Fine, GA Fiorentini Aguirre, Rs Fitzpatrick, Bt Fleming, N Foppiani, D Franco, Ap Furmanski

Abstract:

Accurate knowledge of electron transport properties is vital to understanding the information provided by liquid argon time projection chambers (LArTPCs). Ionization electron drift-lifetime, local electric field distortions caused by positive ion accumulation, and electron diffusion can all significantly impact the measured signal waveforms. This paper presents a measurement of the effective longitudinal electron diffusion coefficient, DL, in MicroBooNE at the nominal electric field strength of 273.9 V/cm. Historically, this measurement has been made in LArTPC prototype detectors. This represents the first measurement in a large-scale (85 tonne active volume) LArTPC operating in a neutrino beam. This is the largest dataset ever used for this measurement. Using a sample of ∼70,000 through-going cosmic ray muon tracks tagged with MicroBooNE's cosmic ray tagger system, we measure DL = 3.74+0.28-0.29 cm2/s.
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New Constraints on Tau-Coupled Heavy Neutral Leptons with Masses mN=280–970 MeV

Physical Review Letters American Physical Society (APS) 127:12 (2021) 121801

Authors:

R Acciarri, C Adams, J Asaadi, B Baller, V Basque, F Cavanna, A de Gouvêa, RS Fitzpatrick, B Fleming, P Green, C James, KJ Kelly, I Lepetic, X Luo, O Palamara, G Scanavini, M Soderberg, J Spitz, AM Szelc, W Wu, T Yang
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First Measurement of Inclusive Electron-Neutrino and Antineutrino Charged Current Differential Cross Sections in Charged Lepton Energy on Argon in MicroBooNE

(2021)

Authors:

MicroBooNE collaboration, P Abratenko, R An, J Anthony, L Arellano, J Asaadi, A Ashkenazi, S Balasubramanian, B Baller, C Barnes, G Barr, V Basque, L Bathe-Peters, O Benevides Rodrigues, S Berkman, A Bhanderi, A Bhat, M Bishai, A Blake, T Bolton, JY Book, L Camilleri, D Caratelli, I Caro Terrazas, R Castillo Fernandez, F Cavanna, G Cerati, Y Chen, D Cianci, JM Conrad, M Convery, L Cooper-Troendle, JI Crespo-Anadon, M Del Tutto, SR Dennis, P Detje, A Devitt, R Diurba, R Dorrill, K Duffy, S Dytman, B Eberly, A Ereditato, JJ Evans, R Fine, GA Fiorentini Aguirre, RS Fitzpatrick, BT Fleming, N Foppiani, D Franco, AP Furmanski, D Garcia-Gamez, S Gardiner, G Ge, S Gollapinni, O Goodwin, E Gramellini, P Green, H Greenlee, W Gu, R Guenette, P Guzowski, L Hagaman, O Hen, C Hilgenberg, GA Horton-Smith, A Hourlier, R Itay, C James, X Ji, L Jiang, JH Jo, RA Johnson, YJ Jwa, D Kalra, N Kamp, N Kaneshige, G Karagiorgi, W Ketchum, M Kirby, T Kobilarcik, I Kreslo, R LaZur, I Lepetic, K Li, Y Li, K Lin, BR Littlejohn, WC Louis, X Luo, K Manivannan, C Mariani, D Marsden, J Marshall, DA Martinez Caicedo, K Mason, A Mastbaum, N McConkey, V Meddage, T Mettler, K Miller, J Mills, K Mistry, T Mohayai, A Mogan, J Moon, M Mooney, AF Moor, CD Moore, L Mora Lepin, J Mousseau, M Murphy, D Naples, A Navrer-Agasson, M Nebot-Guinot, RK Neely, DA Newmark, J Nowak, M Nunes, O Palamara, V Paolone, A Papadopoulou, V Papavassiliou, SF Pate, N Patel, A Paudel, Z Pavlovic, E Piasetzky, I Ponce-Pinto, S Prince, X Qian, JL Raaf, V Radeka, A Rafique, M Reggiani-Guzzo, L Ren, LCJ Rice, L Rochester, J Rodriguez Rondon, M Rosenberg, M Ross-Lonergan, G Scanavini, DW Schmitz, A Schukraft, W Seligman, MH Shaevitz, R Sharankova, J Shi, J Sinclair, A Smith, EL Snider, M Soderberg, S Soldner-Rembold, P Spentzouris, J Spitz, M Stancari, J St John, T Strauss, K Sutton, S Sword-Fehlberg, AM Szelc, W Tang, K Terao, C Thorpe, D Totani, M Toups, Y-T Tsai, MA Uchida, T Usher, W Van De Pontseele, B Viren, M Weber, H Wei, Z Williams, S Wolbers, T Wongjirad, M Wospakrik, K Wresilo, N Wright, W Wu, E Yandel, T Yang, G Yarbrough, LE Yates, HW Yu, GP Zeller, J Zennamo, C Zhang
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Measurement of the flux-averaged inclusive charged-current electron neutrino and antineutrino cross section on argon using the NuMI beam and the MicroBooNE detector

Physical Review D American Physical Society 104:5 (2021) 52002

Authors:

P Abratenko, M Alrashed, R An, J Anthony, J Asaadi, A Ashkenazi, S Balasubramanian, B Baller, C Barnes, G Barr, V Basque, L Bathe-Peters, O Benevides Rodrigues, S Berkman, A Bhanderi, A Bhat, M Bishai, A Blake, T Bolton, L Camilleri, D Caratelli, I Caro Terrazas, R Castillo Fernandez, F Cavanna, G Cerati, Y Chen, E Church, D Cianci, Jm Conrad, M Convery, L Cooper-Troendle, Ji Crespo-Anadon, M Del Tutto, Sr Dennis, D Devitt, R Diurba, L Domine, R Dorrill, K Duffy, S Dytman, B Eberly, A Ereditato, L Escudero Sanchez, Jj Evans, GA Fiorentini Aguirre, Rs Fitzpatrick, Bt Fleming, N Foppiani, D Franco, Ap Furmanski

Abstract:

We present a measurement of the combined νe+ν¯e flux-averaged charged-current inclusive cross section on argon using data from the MicroBooNE liquid argon time projection chamber (lartpc) at Fermilab. Using the off-axis flux from the NuMI beam, MicroBooNE has reconstructed 214 candidate νe+ν¯e interactions with an estimated exposure of 2.4×1020 protons on target. Given the estimated purity of 38.6%, this implies the observation of 80 νe+ν¯e events in argon, the largest such sample to date. The analysis includes the first demonstration of a fully automated application of a dE/dx-based particle discrimination technique of electron- and photon-induced showers in a lartpc neutrino detector. The main background for this first νe analysis is cosmic ray contamination. Significantly higher purity is expected in underground detectors, as well as with next-generation reconstruction algorithms. We measure the νe+ν¯e flux-averaged charged-current total cross section to be 6.84±1.51(stat)±2.33(sys)×10-39 cm2/nucleon, for neutrino energies above 250 MeV and an average neutrino flux energy of 905 MeV when this threshold is applied. The measurement is sensitive to neutrino events where the final state electron momentum is above 48 MeV/c, includes the entire angular phase space of the electron, and is in agreement with the theoretical predictions from genie and nuwro. This measurement is also the first demonstration of electron-neutrino reconstruction in a surface lartpc in the presence of cosmic-ray backgrounds, which will be a crucial task for surface experiments like those that comprise the short-baseline neutrino program at Fermilab.
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