Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-05-03
Phys.Rev.C75:051303,2007
Physics
Nuclear Physics
Nuclear Theory
5 pages, 2 figures, to appear in Physical Review C (Rapid Communication) 2007
Scientific paper
10.1103/PhysRevC.75.051303
We calculate the nuclear matrix elements of the neutrinoless double beta ($0\nu\beta\beta$) decays of $^{76}$Ge and $^{82}$Se for the light-neutrino exchange mechanism. The nuclear wave functions are obtained by using realistic two-body forces within the proton-neutron quasiparticle random-phase approximation (pnQRPA). We include the effects that come from the finite size of a nucleon, from the higher-order terms of nucleonic weak currents, and from the nucleon-nucleon short-range correlations. Most importantly, we improve on the presently available calculations by replacing the rudimentary Jastrow short-range correlations by the more advanced unitary correlation operator method (UCOM). The UCOM corrected matrix elements turn out to be notably larger in magnitude than the Jastrow corrected ones. This has drastic consequences for the detectability of $0\nu\beta\beta$ decay in the present and future double beta experiments.
Kortelainen Markus
Suhonen Jouni
No associations
LandOfFree
Improved short-range correlations and 0nbb nuclear matrix elements of 76Ge and 82Se does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Improved short-range correlations and 0nbb nuclear matrix elements of 76Ge and 82Se, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved short-range correlations and 0nbb nuclear matrix elements of 76Ge and 82Se will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-497189