Journal
PHYSICAL REVIEW C
Volume 91, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.91.034304
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Funding
- U.S. Department of Energy [DE-FG-02-91ER-40608]
- Chilean Ministry of Education (Fondecyt) [1120462]
- Academy of Finland [266437]
- Academy of Finland (AKA) [266437, 266437] Funding Source: Academy of Finland (AKA)
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We introduce a method for isospin restoration in the calculation of nuclear matrix elements (NMEs) for 0 nu beta beta and 2 nu beta beta decay within the framework of themicroscopic interacting boson model (IBM-2). With this method, we calculate the NMEs for all processes of interest in 0 nu beta(-) beta(-)and 2 nu beta(-) beta(-) and in 0 nu beta(+) beta(+), 0 nu EC beta(+), R0vECEC, 2 nu beta(+) beta(+), 2 nu EC beta(+), and 2 nu ECEC. With this method, the Fermi matrix elements for 2 nu beta beta vanish, and those for 0 nu beta beta are considerably reduced.
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