Uncertainties in nuclear transition matrix elements for neutrinoless β β decay II: the heavy Majorana neutrino mass mechanism
Abstract
Employing four different parametrization of the pairing plus multipolar type of effective two-body interaction and three different parametrizations of Jastrow-type of short range correlations, the uncertainties in the nuclear transition matrix elements MN(0) due to the exchange of heavy Majorana neutrino for the 0+→ 0+ transition of neutrinoless double beta decay of 94Zr, 96Zr, 98Mo, 100Mo, 104Ru, 110Pd, 128,130Te and 150Nd isotopes in the PHFB model are estimated to be around 25%. Excluding the nuclear transition matrix elements calculated with Miller-Spenser parametrization of Jastrow short range correlations, the uncertainties are found to be 10%-15% smaller.
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