F. Krmpotić

On the energetics of the Gamow-Teller resonances

Abstract It is suggested that the energy difference between the Gamow-Teller and Fermi resonances is given in units of MeV, by E GT − E F =26A − 1 3 −18.5 (N − Z)/A . The consequences of this result on the strength of the spin and isospin-dependent residual interaction, as well as on the effective axial-vector coupling constant, are discussed.

General behavior of double beta decay amplitudes in the quasiparticle random phase approximation

Simple formulas for the

Giant first-forbidden resonances

{0}^{+}

Projected linear response theory for charge-exchange excitations and double beta decay

\ensuremath{\rightarrow}

Gamow-Teller strength functions and two-neutrino double-beta decay

{0}^{+}

Self-consistent random phase approximation within the O(5) model and Fermi transitions

double beta decay matrix elements, as a function of the particle-particle strength

Double-beta decay within a single-mode model

{\mathit{g}}^{\mathit{p}\mathit{p}}

Ikeda sum rule, self-consistency and double-beta decay in the renormalized quasiparticle random phase approximation☆

, have been designed within the quasiparticle random phase approximation. The 2\ensuremath{\nu} amplitude is a bilinear function of

A new pn-QRPA method for the evaluation of double beta decay observable☆

{\mathit{g}}^{\mathit{p}\mathit{p}}

RPA puzzle in 12C weak decay processes

, and all 0\ensuremath{\nu} moments behave as ratios of a linear function and the square root of another linear function of