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Title: Two-neutrino double-beta decay matrix elements for ground and excited states of [sup 76]Ge and [sup 82]Se nuclei

Abstract

Here we present the theoretical results for the Gamow-Teller two-neutrino double-beta decay (DBD) matrix elements for 0[sub 1][sup +][r arrow]0[sub 1][sup +] and 2[sub 1][sup +] transitions in the case of [sup 76]Ge to [sup 76]Se and [sup 82]Se to [sup 82]Kr nuclei. The calculations have been done in the framework of the variation after projection on the Hartree-Fock-Bogoliubov model with 2[ital p][sub 1/2], 2[ital p][sub 3/2], 1[ital f][sub 5/2], and 1[ital g][sub 9/2] valence space employing the modified Kuo-Brown interactions. The value of DBD half-lives result in excellent agreement for ground state (g.s.) to g.s. excitations of [sup 76]Ge and [sup 82]Se nuclei. Our results are in contrast with existing theoretical calculations for g.s. to 2[sup +] excited state and are much closer to the experimental limits.

Authors:
;  [1]
  1. Department of Physics, Himachal Pradash University, Shimla-171 005 (India)
Publication Date:
OSTI Identifier:
6806143
Resource Type:
Journal Article
Journal Name:
Physical Review, C (Nuclear Physics); (United States)
Additional Journal Information:
Journal Volume: 50:6; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DOUBLE BETA DECAY; MATRIX ELEMENTS; GERMANIUM 76; SELENIUM 82; EXCITED STATES; GAMOW-TELLER RULES; GROUND STATES; HALF-LIFE; HARTREE-FOCK METHOD; NEUTRINOS; BETA DECAY; BETA-MINUS DECAY; CALCULATION METHODS; DAYS LIVING RADIOISOTOPES; DECAY; ELEMENTARY PARTICLES; ENERGY LEVELS; EVEN-EVEN NUCLEI; FERMIONS; GERMANIUM ISOTOPES; INTERMEDIATE MASS NUCLEI; ISOTOPES; LEPTONS; MASSLESS PARTICLES; NUCLEAR DECAY; NUCLEI; RADIOISOTOPES; SELENIUM ISOTOPES; STABLE ISOTOPES; YEARS LIVING RADIOISOTOPES; 663210* - Ground-State Radioactivity- (1992-); 663570 - Nuclear Mass Ranges- A=150-189- (1992-); 663110 - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)

Citation Formats

Dhiman, S K, and Raina, P K. Two-neutrino double-beta decay matrix elements for ground and excited states of [sup 76]Ge and [sup 82]Se nuclei. United States: N. p., 1994. Web. doi:10.1103/PhysRevC.50.R2660.
Dhiman, S K, & Raina, P K. Two-neutrino double-beta decay matrix elements for ground and excited states of [sup 76]Ge and [sup 82]Se nuclei. United States. doi:10.1103/PhysRevC.50.R2660.
Dhiman, S K, and Raina, P K. Thu . "Two-neutrino double-beta decay matrix elements for ground and excited states of [sup 76]Ge and [sup 82]Se nuclei". United States. doi:10.1103/PhysRevC.50.R2660.
@article{osti_6806143,
title = {Two-neutrino double-beta decay matrix elements for ground and excited states of [sup 76]Ge and [sup 82]Se nuclei},
author = {Dhiman, S K and Raina, P K},
abstractNote = {Here we present the theoretical results for the Gamow-Teller two-neutrino double-beta decay (DBD) matrix elements for 0[sub 1][sup +][r arrow]0[sub 1][sup +] and 2[sub 1][sup +] transitions in the case of [sup 76]Ge to [sup 76]Se and [sup 82]Se to [sup 82]Kr nuclei. The calculations have been done in the framework of the variation after projection on the Hartree-Fock-Bogoliubov model with 2[ital p][sub 1/2], 2[ital p][sub 3/2], 1[ital f][sub 5/2], and 1[ital g][sub 9/2] valence space employing the modified Kuo-Brown interactions. The value of DBD half-lives result in excellent agreement for ground state (g.s.) to g.s. excitations of [sup 76]Ge and [sup 82]Se nuclei. Our results are in contrast with existing theoretical calculations for g.s. to 2[sup +] excited state and are much closer to the experimental limits.},
doi = {10.1103/PhysRevC.50.R2660},
journal = {Physical Review, C (Nuclear Physics); (United States)},
issn = {0556-2813},
number = ,
volume = 50:6,
place = {United States},
year = {1994},
month = {12}
}