Evolution of chirality from transverse wobbling in $^{135}$Pr

Autor: Sensharma, N., Garg, U., Chen, Q. B., Frauendorf, S., Zhu, S., Arroyo, J., Ayangeakaa, A. D., Burdette, D. P., Carpenter, M. P., Copp, P., Cozzi, J. L., Ghugre, S. S., Hartley, D. J., Howard, K. B., Janssens, R. V. F., Kondev, F. G., Lauritsen, T., Li, J., Palit, R., Saracino, A., Seweryniak, D., Weyhmiller, S., Wu, J.
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: Chirality is a distinct signature that characterizes triaxial shapes in nuclei. We report the first observation of chirality in the nucleus $^{135}$Pr using a high-statistics Gammasphere experiment with the $^{123}$Sb($^{16}$O,4n)$^{135}$Pr reaction. Two chiral-partner bands with the configuration $\pi(1h_{11/2})^1\otimes \nu(1h_{11/2})^{-2}$ have been identified in this nucleus. Angular distribution analyses of the $\Delta I = 1$ connecting transitions between the two chiral partners have revealed a dominant dipole character. Quasiparticle triaxial rotor model calculations are in good agreement with the experiment. This is the first time that both signatures of triaxiality--chirality and wobbling--have been observed in the same nucleus.
Comment: 11 pages, 11 figures
Databáze: arXiv