New limit on the neutrinoless ββ decay of 130Te -: art. no. 142501

被引：102

作者：

Arnaboldi, C ^{[1
]}

Artusa, DR

Avignone, FT

Balata, M

Bandac, I

Barucci, M

Beeman, JW

Brofferio, C

Bucci, C

Capelli, S

Carbone, L

Cebrian, S

Cremonesi, O

Creswick, RJ

de Waard, A

Farach, HA

Fiorini, E

Frossati, G

Guardincerri, E

Giuliani, A

Gorla, P

Haller, EE

McDonald, RJ

Morales, A

Norman, EB

Nucciotti, A

Olivieri, E

Pallavicini, M

Palmieri, E

Pasca, E

Pavan, M

Pedretti, M

Pessina, G

Pirro, S

Previtali, E

Risegari, L

Rosenfeld, C

Sangiorgio, S

Sisti, M

Smith, AR

Torres, L

Ventura, G

机构：

[1] Univ Milan, Dipartimento Fis, I-20126 Milan, Italy

[2] Ist Nazl Fis Nucl, I-20126 Milan, Italy

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

[4] Lab Nazl Gran Sasso, I-67010 Coppito, Italy

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

[6] Ist Nazl Fis Nucl, I-50125 Florence, Italy

[7] Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[8] Univ Zaragoza, Lab Fis Nucl & Alta Energias, Zaragoza 50009, Spain

[9] Leiden Univ, Kamerling Onnes Lab, NL-2300 RA Leiden, Netherlands

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

[11] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[12] Univ Insubria, Dipartimento Matemat & Fis, I-22100 Como, Italy

[13] Ist Nazl Fis Nucl, I-22100 Como, Italy

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

[15] Lab Nazl Legnaro, I-35020 Legnaro, Italy

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.95.142501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the present results of CUORICINO, a search for neutrinoless double-beta (0 nu beta beta) decay of Te-130. The detector is an array of 62 TeO2 bolometers with a total active mass of 40.7 kg. The array is cooled by a dilution refrigerator shielded from environmental radioactivity and energetic neutrons, operated at similar to 8 mK in the Gran Sasso Underground Laboratory. No evidence for (0 nu beta beta) decay was found and a new lower limit, T-1/2(0 nu)>= 1.8x10(24) yr (90% C.L.) is set, corresponding to < m(nu)><= 0.2 to 1.1 eV, depending on the theoretical nuclear matrix elements used in the analysis.

引用

页数：4

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