Muon capture on light isotopes measured with the Double Chooz detector
Author(s)
Abe, Y.; Almazan, H.; Alt, C.; Appel, S.; Barriere, J. C.; Baussan, E.; Bekman, I.; Bergevin, M.; Bezerra, T. J. C.; Bezrukov, L.; Blucher, E.; Brugière, T.; Buck, C.; Busenitz, J.; Cabrera, A.; Camilleri, L.; Carr, R.; Cerrada, M.; Chauveau, E.; Chimenti, P.; Collin, A. P.; Conover, E.; Crespo-Anadón, J. I.; Crum, K.; Cucoanes, A. S.; Damon, E.; Dawson, J. V.; de Kerret, H.; Dhooghe, J.; Dietrich, D.; Djurcic, Z.; dos Anjos, J. C.; Dracos, M.; Etenko, A.; Fallot, M.; Felde, J.; Fernandes, S. M.; Fischer, V.; Franco, D.; Franke, M.; Furuta, H.; Gil-Botella, I.; Giot, L.; Göger-Neff, M.; Gomez, H.; Gonzalez, L. F. G.; Goodenough, L.; Goodman, M. C.; Haag, N.; Hara, T.; Haser, J.; Hellwig, D.; Hofmann, M.; Horton-Smith, G. A.; Hourlier, A.; Ishitsuka, M.; Jochum, J.; Jollet, C.; Kaether, F.; Kalousis, L. N.; Kamyshkov, Y.; Kaneda, M.; Kaplan, D. M.; Kawasaki, T.; Kemp, E.; Kryn, D.; Kuze, M.; Lachenmaier, T.; Lane, C. E.; Lasserre, T.; Letourneau, A.; Lhuillier, D.; Lima, H. P.; Lindner, M.; López-Castaño, J. M.; LoSecco, J. M.; Lubsandorzhiev, B.; Lucht, S.; Maeda, J.; Mariani, C.; Maricic, J.; Martino, J.; Matsubara, T.; Mention, G.; Meregaglia, A.; Miletic, T.; Milincic, R.; Minotti, A.; Nagasaka, Y.; Navas-Nicolás, D.; Novella, P.; Oberauer, L.; Obolensky, M.; Onillon, A.; Osborn, A.; Palomares, C.; Pepe, I. M.; Perasso, S.; Porta, A.; Pronost, G.; Reichenbacher, J.; Reinhold, B.; Röhling, M.; Roncin, R.; Rybolt, B.; Sakamoto, Y.; Santorelli, R.; Schilithz, A. C.; Schönert, S.; Schoppmann, S.; Shaevitz, M. H.; Sharankova, R.; Shrestha, D.; Sibille, V.; Sinev, V.; Skorokhvatov, M.; Smith, E.; Soiron, M.; Stahl, A.; Stancu, I.; Stokes, L. F. F.; Strait, M.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Svoboda, R.; Tonazzo, A.; Trinh Thi, H. H.; Valdiviesso, G.; Vassilopoulos, N.; Veyssiere, C.; Vivier, M.; von Feilitzsch, F.; Wagner, S.; Walsh, N.; Watanabe, H.; Wiebusch, C.; Wurm, M.; Yang, G.; Yermia, F.; Zimmer, V.; Abrahao, T.; Spitz, Joshua B.; Terao, Kazuhiro; Conrad, Janet Marie; ... Show more Show less
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Using the Double Chooz detector, designed to measure the neutrino mixing angle θ[subscript 13], the products of μ[superscript −] capture on [superscript 12]C, [superscript 13]C, [superscript 14]N, and [superscript 16]O have been measured. Over a period of 489.5 days, 2.3 × 10[superscript 6] stopping cosmic μ[superscript −] have been collected, of which 1.8 × 10[superscript 5] captured on carbon, nitrogen, or oxygen nuclei in the inner detector scintillator or acrylic vessels. The resulting isotopes were tagged using prompt neutron emission (when applicable), the subsequent β decays, and, in some cases, β-delayed neutrons. The most precise measurement of the rate of [superscript 12]C(μ[superscript −], ν) [superscript 12]B to date is reported: 6.57[+0.11 over −0.21] × 10[superscript 3] s[superscript −1], or (17.35[+0.35 over −0.59])% of nuclear captures. By tagging excited states emitting γs, the ground state transition rate to [superscript 12]B has been determined to be 5.68[+0.14 over −0.23] × 10[superscript 3] s[superscript −1]. The heretofore unobserved reactions [superscript 12]C(μ[superscript −], να) [superscript 8]Li, [superscript 13]C(μ[superscript −], νnα) [superscript 8]Li, and [superscript 13]C(μ[superscript −], νn) [superscript 12]B are measured. Further, a population of βn decays following stopping muons is identified with 5.5σ significance. Statistics limit our ability to identify these decays definitively. Assuming negligible production of [superscript 8]He, the reaction [superscript 13]C(μ[superscript −], να) [superscript 9]Li is found to be present at the 2.7σ level. Limits are set on a variety of other processes.
Date issued
2016-05Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review C
Publisher
American Physical Society
Citation
Abe, Y., T. Abrahao, H. Almazan, C. Alt, S. Appel, J. C. Barriere, E. Baussan, et al. “Muon Capture on Light Isotopes Measured with the Double Chooz Detector.” Physical Review C 93, no. 5 (May 12, 2016). © 2016 American Physical Society
Version: Final published version
ISSN
2469-9985
2469-9993