Muon capture on light isotopes measured with the Double Chooz detector

被引：13

作者：

Abe, Y. ^{[27
]}

Abrahao, T. ^{[5
]}

Almazan, H. ^{[20
]}

Alt, C. ^{[1
]}

Appel, S. ^{[29
]}

Barriere, J. C. ^{[14
]}

Baussan, E. ^{[22
]}

Bekman, I. ^{[1
]}

Bergevin, M. ^{[9
]}

Bezerra, T. J. C. ^{[25
]}

Bezrukov, L. ^{[13
]}

Blucher, E. ^{[6
]}

Brugiere, T. ^{[22
]}

Buck, C. ^{[20
]}

Busenitz, J. ^{[2
]}

Cabrera, A. ^{[1
,4
,7
,20
,22
,29
]}

Camilleri, L. ^{[8
]}

Carr, R. ^{[8
]}

Cerrada, M. ^{[7
]}

Chauveau, E. ^{[25
]}

Chimenti, P. ^{[31
]}

Collin, A. P. ^{[20
]}

Conover, E. ^{[6
]}

Conrad, J. M. ^{[19
]}

Crespo-Anadon, J. I. ^{[7
]}

Crum, K. ^{[6
]}

Cucoanes, A. S. ^{[23
,34
]}

Damon, E. ^{[10
]}

Dawson, J. V. ^{[4
]}

De Kerret, H. ^{[4
]}

Dhooghe, J. ^{[9
]}

Dietrich, D. ^{[30
]}

Djurcic, Z. ^{[3
]}

dos Anjos, J. C. ^{[5
]}

Dracos, M. ^{[22
]}

Etenko, A. ^{[4
,18
]}

Fallot, M. ^{[23
]}

Felde, J. ^{[9
,35
]}

Fernandes, S. M. ^{[2
]}

Fischer, V. ^{[14
]}

Franco, D. ^{[4
]}

Franke, M. ^{[29
]}

Furuta, H. ^{[25
]}

Gil-Botella, I. ^{[7
]}

Giot, L. ^{[23
]}

Goeger-Neff, M. ^{[29
]}

Gomez, H. ^{[4
]}

Gonzalez, L. F. G. ^{[32
]}

Goodenough, L. ^{[3
]}

Goodman, M. C. ^{[3
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[2] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Univ Paris Diderot, AstroParticule & Cosmol, CNRS IN2P3, CEA IRFU,Observ Paris,Sorbonne Paris Cite, F-75205 Paris 13, France

[5] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ, Brazil

[6] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[7] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain

[8] Columbia Univ, New York, NY 10027 USA

[9] Univ Calif Davis, Davis, CA 95616 USA

[10] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA

[11] Hiroshima Inst Technol, Hiroshima 7315193, Japan

[12] IIT, Dept Phys, Chicago, IL 60616 USA

[13] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[14] IRFU, Commissariat Energie Atom & Energies Alternat, Ctr Saclay, F-91191 Gif Sur Yvette, France

[15] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA

[16] Kitasato Univ, Dept Phys, Sagamihara, Kanagawa 2520373, Japan

[17] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

[18] NRC Kurchatov Inst, Moscow 123182, Russia

[19] MIT, Cambridge, MA 02139 USA

[20] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[21] Univ Notre Dame, Notre Dame, IN 46556 USA

[22] Univ Strasbourg, IPHC, CNRS IN2P3, F-67037 Strasbourg, France

[23] Univ Nantes, Ecole Mines Nantes, CNRS IN2P3, SUBATECH, F-44307 Nantes, France

[24] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[25] Tohoku Univ, Res Ctr Neutrino Sci, Sendai, Miyagi 9808578, Japan

[26] Tohoku Gakuin Univ, Sendai, Miyagi 9813193, Japan

[27] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[28] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan

[29] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

[30] Univ Tubingen, Kepler Ctr Astro & Particle Phys, D-72076 Tubingen, Germany

[31] Univ Fed ABC, UFABC, BR-09210580 Sao Paulo, Brazil

[32] Univ Estadual Campinas UNICAMP, BR-13083970 Campinas, SP, Brazil

[33] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA 24061 USA

[34] Horia Hulubei Natl Inst Phys & Nucl Engn, ELI NP, Bucharest 077125, Romania

[35] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[36] Kobe Univ, Dept Phys, Kobe, Hyogo 6588501, Japan

[37] Univ Hawaii Manoa, Dept Phys & Astron, Honolulu, HI 96822 USA

[38] IFIC CSIC UV, Inst Fis Corpuscular, Paterna 46980, Spain

[39] Johannes Gutenberg Univ Mainz, Inst Phys & Excellence, Cluster PRISMA, D-55128 Mainz, Germany

来源：

PHYSICAL REVIEW C | 2016年 / 93卷 / 05期

基金：

美国国家科学基金会; 日本学术振兴会; 俄罗斯基础研究基金会; 巴西圣保罗研究基金会;

关键词：

NUCLEAR CAPTURE; ENERGY-LEVELS; RATES; B-12; SPECTRUM; C-12;

D O I：

10.1103/PhysRevC.93.054608

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Using the Double Chooz detector, designed to measure the neutrino mixing angle theta(13), the products of mu(-) capture on C-12, C-13, N-14, and O-16 have been measured. Over a period of 489.5 days, 2.3 x 10(6) stopping cosmic mu(-) have been collected, of which 1.8 x 10(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 beta decays, and, in some cases, beta-delayed neutrons. The most precise measurement of the rate of C-12(mu(-), nu)B-12 to date is reported: 6.57(-0.21)(+0.11) x 10(3) s(-1), or (17.35(-0.59)(+0.35))% of nuclear captures. By tagging excited states emitting gamma s, the ground state transition rate to B-12 has been determined to be 5.68(-0.23)(+0.14) x 10(3) s(-1). The heretofore unobserved reactions C-12(mu(-), nu alpha)Li-8, C-13(mu(-), nu n alpha)Li-8, and C-13(mu(-), nu n)B-12 are measured. Further, a population of beta n decays following stopping muons is identified with 5.5 sigma significance. Statistics limit our ability to identify these decays definitively. Assuming negligible production of He-8, the reaction C-13(mu(-), nu alpha)Li-9 is found to be present at the 2.7 sigma level. Limits are set on a variety of other processes.

引用

页数：18

共 45 条

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