TY - JOUR
T1 - First Observation of Multiple Transverse Wobbling Bands of Different Kinds in Au 183
AU - Nandi, S.
AU - Mukherjee, G.
AU - Chen, Q. B.
AU - Frauendorf, S.
AU - Banik, R.
AU - Bhattacharya, Soumik
AU - Dar, Shabir
AU - Bhattacharyya, S.
AU - Bhattacharya, C.
AU - Chatterjee, S.
AU - Das, S.
AU - Samanta, S.
AU - Raut, R.
AU - Ghugre, S. S.
AU - Rajbanshi, S.
AU - Ali, Sajad
AU - Pai, H.
AU - Asgar, Md A.
AU - Das Gupta, S.
AU - Chowdhury, P.
AU - Goswami, A.
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/9
Y1 - 2020/9
N2 - We report the first observation of two wobbling bands in Au183, both of which were interpreted as the transverse wobbling (TW) band but with different behavior of their wobbling energies as a function of spin. It increases (decreases) with spin for the positive (negative) parity configuration. The crucial evidence for the wobbling nature of the bands, dominance of the E2 component in the ΔI=1 transitions between the partner bands, is provided by the simultaneous measurements of directional correlation from the oriented states ratio and the linear polarization of the γ rays. Particle rotor model calculations with triaxial deformation reproduce the experimental data well. A value of spin, Im, has been determined for the observed TW bands below which the wobbling energy increases and above which it decreases with spin. The nucleus Au183 is, so far, the only nucleus in which both the increasing and the decreasing parts are observed and thus gives the experimental evidence of the complete transverse wobbling phenomenon.
AB - We report the first observation of two wobbling bands in Au183, both of which were interpreted as the transverse wobbling (TW) band but with different behavior of their wobbling energies as a function of spin. It increases (decreases) with spin for the positive (negative) parity configuration. The crucial evidence for the wobbling nature of the bands, dominance of the E2 component in the ΔI=1 transitions between the partner bands, is provided by the simultaneous measurements of directional correlation from the oriented states ratio and the linear polarization of the γ rays. Particle rotor model calculations with triaxial deformation reproduce the experimental data well. A value of spin, Im, has been determined for the observed TW bands below which the wobbling energy increases and above which it decreases with spin. The nucleus Au183 is, so far, the only nucleus in which both the increasing and the decreasing parts are observed and thus gives the experimental evidence of the complete transverse wobbling phenomenon.
UR - https://www.scopus.com/pages/publications/85092802675
U2 - 10.1103/PhysRevLett.125.132501
DO - 10.1103/PhysRevLett.125.132501
M3 - 文章
C2 - 33034500
AN - SCOPUS:85092802675
SN - 0031-9007
VL - 125
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 132501
ER -