Gamow-Teller1+states inBi208

Effect of deformation, particle-hole and particle-particle interaction on Gamow-Teller transitions of 76Ge

“…Calculated GT strength values from PM and SM can have differences because of the effective interaction term (h0) (for further details, see [9,11,34,38,39]). Spherical calculations are done within the frame of Pyatov method and Schematic Model.…”

“…This method was also used by Magierski and Wyss [7]. Kuliev et al used the Pyatov method to investigate scissors mode in deformation cores [8], Selam et al used the Pyatov method to investigate the GTR properties in spherical nuclei and the isospin mixture in the ground state [9,10,11]. Necla studied charge Exchange collective excitations in odd mass nuclei by using Pyatov method [12].…”

Gamow–Teller strength in 56 Fe nucleus at finite temperatures

“…Spin-isospin excitations in nuclei are known as one of the most important excitation modes in nuclei, not only for nuclear physics but also for nuclear astrophysics [1][2][3]. Among the spin-isospin excitations, the Gamow-Teller (GT) resonances ( ∆L = 0, J π = 1 + ) are the most widely known, both experimentally [4,5] and theoretically [6][7][8][9][10][11][12][13][14]. Apart from their importance to understand the structure of nuclei and nuclear interaction, it is also known that the GT resonances play a dominant role in the calculation of nuclear weak interactions processes like beta decay, electron capture, and charged-current neutrino-nucleus reactions [15][16][17][18][19].…”

“…Proton-neutron random phase approximation (PNRPA) is known as an efficient and reliable tool in the description of the collective excitations in nuclei (e.g., GT transitions) [6][7][8][9][10][11][12]. Recently, the effect of temperature on GT + strength and electron capture was investigated at zero and finite temperatures using the relativistic [20] and nonrelativistic [21,22] functionals.…”

Investigation of isospin forbidden 0+ → 0+ Fermi beta decays with Pyatov method

“…Pyatov method was used in several studies [14][15][16][17][18][19][20][21][22][23]. In our previous studies, the Cabbibo-Kobayashi-Maskawa (CKM) matrix unitarity [24,25], the values of superallowed fermi beta decays [26] and isospin admixtures and isospin structure of isobar analog resonance states of superallowed beta decays [27] were investigated without and with pairing interactions, by using this method.…”