Double beta decays of Mo-100 and Nd-150

被引：109

作者：

DeSilva, A

Moe, MK

Nelson, MA

Vient, MA

机构：

来源：

PHYSICAL REVIEW C | 1997年 / 56卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.56.2451

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：

The double beta decays of Mo-100 and Nd-150 were studied in a time projection chamber located 72 m underground. A 3275-h exposure of a 16.7-g sample of metallic Mo enriched to 97.4% in Mo-100 resulted in a two-neutrino half-life, T-1/2(2 nu) = (6.82(-0.53)(+0.38) +/- 0.68) X 10(18) y. Similarly, a 6287-h exposure of 15.5 g of Nd2O3 enriched to 91% in Nd-150 yielded T-1/2(2 nu) = (6.75(-0.42)(+0.37) +/- 0.68) X 10(18) y. Lower Limits on half-lives for neutrinoless decay with and without majoron emission also have been measured.

引用

页码：2451 / 2467

页数：17

共 39 条

[1]

Abad J., 1984, Anales de Fisica, Serie A (Fenomenos e Interacciones), V80, P9

[2] Experimental search for double-beta decay of Mo-100 [J].

AlstonGarnjost, M ;

Dougherty, BL ;

Kenney, RW ;

Tripp, RD ;

Krivicich, JM ;

Nicholson, HW ;

Sutton, CS ;

Dieterle, BD ;

Foltz, SD ;

Leavitt, CP ;

Reeder, RA ;

Baker, JD ;

Caffrey, AJ .

PHYSICAL REVIEW C, 1997, 55 (01) :474-493

[3]

[Anonymous], 1986, Statistics for nuclear and particle physicists" Cambridge Univ. Press

[4] HALF-LIFE MEASUREMENT FOR (ND)-N-150 2-BETA-2-NU DECAY IN THE TIME PROJECTION CHAMBER EXPERIMENT [J].

ARTEMIEV, V ;

BRAKCHMAN, E ;

KARELIN, A ;

KIRICHENKO, V ;

KLIMENKO, A ;

KOZODAEVA, O ;

LUBIMOV, V ;

MITIN, A ;

OSETROV, S ;

PARAMOKHIN, V ;

POMANSKY, A ;

SMOLNIKOV, A ;

TSVETKOVA, T ;

VASILYEV, S ;

ZELDOVICH, O .

PHYSICS LETTERS B, 1995, 345 (04) :564-568

[5] Double beta decay of Ca-48 [J].

Balysh, A ;

DeSilva, A ;

Lebedev, VI ;

Lou, K ;

Moe, MK ;

Nelson, MA ;

Piepke, A ;

Pronskiy, A ;

Vient, MA ;

Vogel, P .

PHYSICAL REVIEW LETTERS, 1996, 77 (26) :5186-5189

[6] MULTI-MAJORON MODES FOR NEUTRINOLESS DOUBLE-BETA DECAY [J].

BAMERT, P ;

BURGESS, CP ;

MOHAPATRA, RN .

NUCLEAR PHYSICS B, 1995, 449 (1-2) :25-48

[7] EXTENDED MAXIMUM-LIKELIHOOD [J].

BARLOW, R .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1990, 297 (03) :496-506

[8] OBSERVABLE MAJORON EMISSION IN NEUTRINOLESS DOUBLE BETA-DECAY [J].

BEREZHIANI, ZG ;

SMIRNOV, AY ;

VALLE, JWF .

PHYSICS LETTERS B, 1992, 291 (1-2) :99-105

[9]

BRODZINSKI RL, COMMUNICATION

[10] MAJORONS WITHOUT MAJORANA MASSES AND NEUTRINOLESS DOUBLE BETA-DECAY [J].

BURGESS, CP ;

CLINE, JM .

PHYSICS LETTERS B, 1993, 298 (1-2) :141-148

← 1 2 3 4 →