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

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.R2660· OSTI ID:6806143

Dhiman, S K; Raina, P K ^[1]

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1. Department of Physics, Himachal Pradash University, Shimla-171 005 (India)

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.

• OSTI ID: 6806143
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 50:6; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

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-)