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Title: First results of a search for double beta decay of {sup 100}Mo with the NEMO 2 detector

Double beta decay of {sup 100}Mo (172g) is studied with the NEMO 2 detector in the Frejus Underground Laboratory. The experiment has now accumulated 2485 hours of data taking. A clear signal of 380 events for 2{beta}2{nu} decay has been obtained corresponding to a half-life of T{sub {1/2}} = 1.0 {plus_minus} 0.08 (syst.) 10{sup 19} y. Limits are presented for 2{beta}(0{nu}, {chi}), 2{beta}0{nu} (ground state and excited states 2{sub 1}{sup +} and 0{sub 1}{sup +}). The experiment will run til October 1993.
Authors:
Publication Date:
OSTI Identifier:
10185203
Report Number(s):
CONF-930761--1
ON: DE93040024; TRN: 93:022837
DOE Contract Number:
FG02-90ER40553
Resource Type:
Technical Report
Resource Relation:
Conference: International Europhysics conference on high-energy physics,Marseille (France),22-28 Jul 1993; Other Information: PBD: 15 Jun 1993
Research Org:
Mount Holyoke Coll., South Hadley, MA (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; MOLYBDENUM 100; DOUBLE BETA DECAY; HALF-LIFE; EXPERIMENTAL DATA; NEUTRINOS 663210; 662430; GROUND-STATE RADIOACTIVITY; PROPERTIES OF LEPTONS