Nuclear matrix elements for neutrinoless double-beta decay in covariant density functional theory
2017 ◽
Vol 26
(01n02)
◽
pp. 1740020
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Keyword(s):
We review the first fully relativistic description for the neutrinoless double-beta decay by the beyond-mean-field covariant density functional theory. The calculations of the nuclear transition matrix elements are based on a full relativistic transition operator and nuclear wave functions in which the dynamic effects of particle-number, angular-momentum, and parity conservations as well as shape fluctuations are incorporated. We find that the commonly used nonrelativistic approximation for the transition operator is justified within the mechanism of light-Majorana-neutrino exchange. We stress that reducing the discrepancies in the predicted nuclear matrix elements by different nuclear models is a major challenge in nuclear physics.
2012 ◽
Vol 9
(3)
◽
pp. 220-227
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Keyword(s):
2017 ◽
Vol 10
(1)
◽
pp. 7
2017 ◽
Vol 80
(4)
◽
pp. 046301
◽
Keyword(s):
2007 ◽
Vol 45
(1)
◽
pp. 55-58
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