Nuclear matrix elements of neutrinoless double beta decay with improved short-range correlations

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dc.creatorKortelainen, Markus
dc.creatorSuhonen, Jouni
dc.date2007-08-01
dc.date.accessioned2026-07-07T10:56:58Z
dc.date.available2026-07-07T10:56:58Z
dc.descriptionNuclear matrix elements of the neutrinoless double beta decays of 96Zr, 100Mo, 116Cd, 128Te, 130Te and 136Xe are calculated for the light-neutrino exchange mechanism by using the proton-neutron quasiparticle random-phase approximation (pnQRPA) with a realistic nucleon-nucleon force. The g_pp parameter of the pnQRPA is fixed by the data on the two-neutrino double beta decays and single beta decays. The finite size of a nucleon, the higher-order terms of nucleonic weak currents, and the nucleon-nucleon short-range correlations (s.r.c) are taken into account. The s.r.c. are computed by the traditional Jastrow method and by the more advanced unitary correlation operator method (UCOM). Comparison of the results obtained by the two methods is carried out. The UCOM computed matrix elements turn out to be considerably larger than the Jastrow computed ones. This result is important for the assessment of the neutrino-mass sensitivity of the present and future double beta experiments.
dc.descriptionTwo figures, to be published in Physical Review C (2007) as a regular article
dc.identifierhttps://arxiv.org/abs/0708.0115
dc.identifierhttp://arxiv.org/abs/0708.0115
dc.identifierPhys.Rev.C76:024315,2007
dc.identifierdoi:10.1103/PhysRevC.76.024315
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186599
dc.subjectNuclear Theory
dc.titleNuclear matrix elements of neutrinoless double beta decay with improved short-range correlations
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