[2403.10749]
N. Sensharma, U. Garg, Q. B. Chen, S. Frauendorf, S. Zhu, J. Arroyo, A. D. Ayangeakaa, D. P. Burdette, M. P. Carpenter, P. Copp, J. L. Cozzi, S. S. Ghugre, D. J. Hartley, K. B. Howard, R. V. F. Janssens, F. G. Kondev, T. Lauritsen, J. Li, R. Palit, A. Saracino, D. Seweryniak, S. Weyhmiller, J. Wu
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 $π(1h_{11/2})^1\otimesν(1h_{11/2})^{-2}$ have been identified in this nucleus. Angular distribution analyses of the $ΔI = 1$ transitions connecting the two bands reveal a dominant dipole character, and quasiparticle triaxial rotor model calculations show good agreement with the data. Since the simultaneous observation of chirality and transverse wobbling in $^{135}$Pr relies critically on these angular distribution results, we also address and refute the experimental and theoretical criticisms raised in a recent work by Lv et al., presenting additional evidence that further strengthens our interpretation. This marks the first observation of both hallmarks of triaxiality-chirality and wobbling-in the same nucleus.