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Digitale Medien

Effects of ground-state correlations on 2νββ decay rates and limitations of the QRPA approach (1989)

Muto, K. ; Bender, E. ; Klapdor, H. V.

Springer

The European physical journal 334 (1989), S. 177-186

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Details

ISSN: 1434-601X

Schlagwort(e): 23.40-s ; 23.40.Hc ; 21.60.Jz

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract Half-lives of the 2νββ decay are calculated in the proton-neutron QRPA for76Ge,82Se,100Mo,128,130Te,136Xe and150Nd. The strength of the particle-particle interaction, which plays a decisive role for a reliable evaluation of the half-lives, is determined from a QRPA calculation of singleβ + decays. The 2ν decay rates calculated with the interaction strength fitted in this way are strongly suppressed and found to be consistent with the existing experimental data. Effects of the ground-state correlations on the suppression are investigated. On the other hand, the present calculation indicates limitations of the QRPA approach.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01294218

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