THE HEIDELBERG-MOSCOW DOUBLE BETA-DECAY EXPERIMENT WITH ENRICHED GE-76 - 1ST RESULTS

被引：69

作者：

BALYSH, A

BECK, M

BELYAEV, ST

BOCKHOLT, J

DEMEHIN, A

ECHTERNACH, J

GUROV, A

HEUSSER, G

HIRSCH, M

KLAPDORKLEINGROTHAUS, HV

KONDRATENKO, I

LEBEDEV, VI

MAIER, B

MULLER, A

PETRY, F

PIEPKE, A

SCHMIDT-ROHR, U

STRECKER, H

ZUBER, K

机构：

[1] IV KURCHATOV INST, MOSCOW 123182, USSR

[2] IST NAZL FIS NUCL, I-67010 ASSERGI, ITALY

来源：

PHYSICS LETTERS B | 1992年 / 283卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)91421-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The status of the Heidelberg-Moscow beta-beta-experiment using isotopically enriched Ge-76 is reported. The results of 14.8 mol yr (or 1.29 kg yr) of operation are presented. From these data a new half life time for the beta-beta-0-nu-decay of Ge-76 to the ground state of Se-76 of T1/2 > 1.4(2.5) X 10(24) yr with 90% (68%) CL can be deduced. For a possible neutrinoless decay to the first excited state a half life of 4.3(8.2) X 10(23) yr can be excluded with 90% (68%) CL.

引用

页码：32 / 36

页数：5

共 22 条

[1] BECK M, 1991, 26TH P RENC MOR LES, P91
[2] DEEP UNDERGROUND NEUTRON-FLUX MEASUREMENT WITH LARGE BF3 COUNTERS
BELLI, P
BERNABEI, R
DANGELO, S
DEPASCALE, MP
PAOLUZI, L
SANTONICO, R
TABORGNA, N
IUCCI, N
VILLORESI, G
[J]. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1989, 101 (06): : 959 - 966
[3] A SEARCH FOR 2 NEUTRINO AND NEUTRINOLESS DOUBLE BETA-DECAY OF XE-136 IN THE GRAN-SASSO UNDERGROUND LABORATORY
BELLOTTI, E
CREMONESI, O
FIORINI, E
GERVASIO, G
RAGAZZI, S
ROSSI, L
SVERZELLATI, PP
SZARKA, J
TABARELLI DE FATIS, T
ZANOTTI, L
[J]. PHYSICS LETTERS B, 1991, 266 (1-2) : 193 - 200
[4] BOEHM F, 1991, 26TH P RENC MOR LES, P85
[5] THE 0+-]2+ NEUTRINOLESS DOUBLE BETA-DECAY OF GE-76 - RESULTS OF THE FREJUS EXPERIMENT
BUSTO, J
DASSIE, D
HELENE, O
HUBERT, P
LARRIEU, P
LECCIA, F
MENNRATH, P
ALEONARD, MM
CHEVALLIER, J
[J]. NUCLEAR PHYSICS A, 1990, 513 (02) : 291 - 315
[6] Caldwell D. O., 1990, Nuclear Physics B, Proceedings Supplements, V13, P547, DOI 10.1016/0920-5632(90)90123-C
[7] Doi M, 1985, PROG THEOR PHYS SUPP, V83, P1, DOI 10.1143/PTPS.83.1
[8] DOUBLE BETA-DECAYS OF MO-100
EJIRI, H
FUSHIMI, K
KAMADA, T
KINOSHITA, H
KOBIKI, H
OHSUMI, H
OKADA, K
SANO, H
SHIBATA, T
SHIMA, T
TANABE, N
TANAKA, J
TANIGUCHI, T
WATANABE, T
YAMAMOTO, N
[J]. PHYSICS LETTERS B, 1991, 258 (1-2) : 17 - 23
[9] DIRECT EVIDENCE FOR 2-NEUTRINO DOUBLE-BETA DECAY IN SE-82
ELLIOTT, SR
HAHN, AA
MOE, MK
[J]. PHYSICAL REVIEW LETTERS, 1987, 59 (18) : 2020 - 2023
[10] HERNANDEZ JJ, 1990, PHYS LETT B, V239, P3

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