Upper limit on the electron antineutrino mass from the Troitsk experiment

被引：247

作者：

Aseev, V. N. ^{[1
]}

Belesev, A. I. ^{[1
]}

Berlev, A. I. ^{[1
]}

Geraskin, E. V. ^{[1
]}

Golubev, A. A. ^{[1
]}

Likhovid, N. A. ^{[1
]}

Lobashev, V. M. ^{[1
]}

Nozik, A. A. ^{[1
]}

Pantuev, V. S. ^{[1
]}

Parfenov, V. I. ^{[1
]}

Skasyrskaya, A. K. ^{[1
]}

Tkachov, F. V. ^{[1
]}

Zadorozhny, S. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Nucl Res, Moscow, Russia

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 11期

基金：

俄罗斯基础研究基金会;

关键词：

NEUTRINO MASS; BETA-DECAY; SPECTRUM; SEARCH; T-2;

D O I：

10.1103/PhysRevD.84.112003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An electron antineutrino mass has been measured in tritium beta decay in the Troitsk nu-mass experiment. The setup consists of a windowless gaseous tritium source and an electrostatic electron spectrometer. The whole data set acquired from 1994 to 2004 was reanalyzed. A thorough selection of data with the reliable experimental conditions has been performed. We checked every known systematic effect and obtained the following experimental estimate for neutrino mass squared m(nu)(2) = -0.67 +/- 2.53 eV(2). This gives an experimental upper sensitivity limit of m(nu) < 2.2 eV, 95% C. L. and upper limit estimates m(nu) < 2.12 eV, 95% C. L. for Bayesian statistics and m(nu) < 2.05 eV, 95% C. L. for the Feldman and Cousins approach.

引用

页数：9

共 12 条

[1]

Aseev VN, 2000, EUR PHYS J D, V10, P39, DOI 10.1007/s100530050525

[2]

Donszelmann M., 2008, Journal of Physics: Conference Series, V119, DOI 10.1088/1742-6596/119/3/032016

[3] Unified approach to the classical statistical analysis of small signals [J].

Feldman, GJ ;

Cousins, RD .

PHYSICAL REVIEW D, 1998, 57 (07) :3873-3889

[4]

James F., 1994, CERN PROGRAM LIB, V506

[5] Effects from changes in the final state spectrum on the neutrino mass determination from T-2 beta decay experiments [J].

Jonsell, S ;

Monkhorst, HJ .

PHYSICAL REVIEW LETTERS, 1996, 76 (24) :4476-4479

[6]

Kraus C, 2005, EUR PHYS J C, V40, P447, DOI 10.1140/epjc/s2005-02139-7

[7] The search for the neutrino mass by direct method in the tritium beta-decay and perspectives of study it in the project KATRIN [J].

Lobashev, VM .

NUCLEAR PHYSICS A, 2003, 719 :153C-160C

[8] REVIEW OF PARTICLE PHYSICS [J].

Nakamura, K. ;

Hagiwara, K. ;

Hikasa, K. ;

Murayama, H. ;

Tanabashi, M. ;

Watari, T. ;

Amsler, C. ;

Antonelli, M. ;

Asner, D. M. ;

Baer, H. ;

Band, H. R. ;

Barnett, R. M. ;

Basaglia, T. ;

Bergren, E. ;

Beringer, J. ;

Bernardi, G. ;

Bertl, W. ;

Bichsel, H. ;

Biebel, O. ;

Blucher, E. ;

Blusk, S. ;

Cahn, R. N. ;

Carena, M. ;

Ceccucci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

Dahl, O. ;

D'Ambrosio, G. ;

Damour, T. ;

de Florian, D. ;

de Gouvea, A. ;

DeGrand, T. ;

Dissertori, G. ;

Dobrescu, B. ;

Doser, M. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. ;

Erler, J. ;

Ezhela, V. V. ;

Fetscher, W. ;

Fields, B. D. ;

Foster, B. ;

Gaisser, T. K. ;

Garren, L. ;

Gerber, H. -J. ;

Gerbier, G. ;

Gherghetta, T. .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2010, 37 (7A) :1-5

[9]

ROBERTSON RGH, 1988, ANNU REV NUCL PART S, V38, P185

[10] MEASUREMENT OF THE BETA-ENERGY SPECTRUM OF H-3 TO DETERMINE THE ANTINEUTRINO MASS [J].

SIMPSON, JJ .

PHYSICAL REVIEW D, 1981, 23 (03) :649-662

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