Search for Neutrinoless Double-Beta Decay of 130Te with CUORE-0

被引：175

作者：

Alfonso, K. ^{[1
]}

Artusa, D. R. ^{[2
,3
]}

Avignone, F. T., III ^{[2
]}

Azzolini, O. ^{[4
]}

Balata, M. ^{[3
]}

Banks, T. I. ^{[5
,6
]}

Bari, G. ^{[7
]}

Beeman, J. W. ^{[8
]}

Bellini, F. ^{[9
,10
]}

Bersani, A. ^{[11
]}

Biassoni, M. ^{[12
,13
]}

Brofferio, C. ^{[12
,13
]}

Bucci, C. ^{[3
]}

Caminata, A. ^{[11
]}

Canonica, L. ^{[3
]}

Cao, X. G. ^{[14
]}

Capelli, S. ^{[12
,13
]}

Cappelli, L. ^{[3
,15
]}

Carbone, L. ^{[13
]}

Cardani, L. ^{[9
,10
]}

Casali, N. ^{[9
,10
]}

Cassina, L. ^{[12
,13
]}

Chiesa, D. ^{[12
,13
]}

Chott, N. ^{[2
]}

Clemenza, M. ^{[12
,13
]}

Copello, S. ^{[11
,16
]}

Cosmelli, C. ^{[9
,10
]}

Cremonesi, O. ^{[13
]}

Creswick, R. J. ^{[2
]}

Cushman, J. S. ^{[17
]}

Dafinei, I. ^{[10
]}

Dally, A. ^{[18
]}

Dell'Oro, S. ^{[3
,19
]}

Deninno, M. M. ^{[7
]}

Di Domizio, S. ^{[11
,16
]}

Di Vacri, M. L. ^{[3
,20
]}

Drobizhev, A. ^{[5
,6
]}

Ejzak, L. ^{[18
]}

Fang, D. Q. ^{[14
]}

Faverzani, M. ^{[12
,13
]}

Fernandes, G. ^{[11
,16
]}

Ferri, E. ^{[12
,13
]}

Ferroni, F. ^{[9
,10
]}

Fiorini, E. ^{[12
,13
]}

Freedman, S. J. ^{[5
,6
]}

Fujikawa, B. K. ^{[6
]}

Giachero, A. ^{[12
,13
]}

Gironi, L. ^{[12
,13
]}

Giuliani, A. ^{[21
]}

Gorla, P. ^{[3
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA

[3] INFN Lab Nazl Gran Sasso, I-67010 Laquila, Italy

[4] INFN Lab Nazl Legnaro, I-35020 Padua, Italy

[5] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[6] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA

[7] INFN Sez Bologna, I-40127 Bologna, Italy

[8] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA

[9] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[10] INFN Sez Roma, I-00185 Rome, Italy

[11] INFN Sez Genova, I-16146 Genoa, Italy

[12] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy

[13] INFN Sez Milano Bicocca, I-20126 Milan, Italy

[14] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[15] Univ Cassino & Lazio Meridionale, Dipartimento Ingn Civile & Meccan, I-03043 Cassino, Italy

[16] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[17] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[18] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[19] INFN Gran Sasso Sci Inst, I-67100 Laquila, Italy

[20] Univ Aquila, Dipartimento Sci Fis & Chim, I-67100 Laquila, Italy

[21] CSNSM, F-91405 Orsay, France

[22] Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 93407 USA

[23] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[24] MIT, Cambridge, MA 02139 USA

[25] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[26] Univ Zaragoza, Lab Fis Nucl & Astroparticulas, E-50009 Zaragoza, Spain

[27] Univ Bologna, Alma Mater Studiorum, Dipartimento Sci Qualita Vita, I-47921 Bologna, Italy

[28] CEA, Ctr Saclay, Irfu SPP, F-91191 Gif Sur Yvette, France

[29] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[30] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

[31] INFN Sez Padova, I-35131 Padua, Italy

[32] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

[33] INFN Sez Firenze, I-50125 Florence, Italy

[34] Univ Bologna, Alma Mater Studiorum, Dipartimento Fis & Astron, I-40127 Bologna, Italy

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 10期

基金：

美国国家科学基金会;

关键词：

DETECTORS; CONTAMINATION; PERFORMANCE; VALIDATION; LIMITS;

D O I：

10.1103/PhysRevLett.115.102502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the results of a search for neutrinoless double-beta decay in a 9.8 kg yr exposure of Te-130 using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are 5.1 +/- 0.3 keV FWHM and 0.058 +/- 0.004(stat) +/- 0.002(syst)counts/(keV kg yr), respectively. The median 90% C.L. lower-limit half-life sensitivity of the experiment is 2.9 x 10(24) yr and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of Te-130 and place a Bayesian lower bound on the decay half-life, T-1/2(0 nu) > 2.7 x 10(24) yr at 90% C.L. Combining CUORE-0 data with the 19.75 kg yr exposure of Te-130 from the Cuoricino experiment we obtain T-1/2(0 nu) > 4.0 x 10(24) yr at 90% C.L. (Bayesian), the most stringent limit to date on this half-life. Using a range of nuclear matrix element estimates we interpret this as a limit on the effective Majorana neutrino mass, m beta beta < 270-760 meV.

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页数：7

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