Multi-phonon <i>γ</i> vibrational bands and chiral vibrations in the A∼100 neutron-rich region
We present experimental evidence for the one- and two-phonon γ vibrational bands in the isotopes 103−108 Mo by analyzing high-statistics γ-γ-γ and γ-γ-γ-γ coincidence data from the spontaneous fission of 252 Cf. The consistency of the one- and two-phonon γ bands in both odd- and even-mass isotopes within this range provides a robust test for microscopic theories. Additionally, we have identified evidence for one-, two-, and possibly three-phonon γ bands in 103,105 Nb. Triaxial projected shell model calculations successfully reproduce the level structures and align well with the excitation energies of the observed one- and two-phonon γ bands. The potential existence of three-phonon γ bands in 103,105 Nb is further supported by recent particle-vibration coupling model calculations. Furthermore, chiral vibrational bands have been observed in 104,106 Mo.
Authors
- Y. X. Luo (ORCID: https://orcid.org/0009-0006-5342-0406)
- Gajanan Bhat (ORCID: https://orcid.org/0000-0003-4485-7586)
- B. Qi (ORCID: https://orcid.org/0000-0001-7159-1897)
- John Rasmussen (ORCID: https://orcid.org/0000-0003-3257-5653)
- S. J. Zhu (ORCID: https://orcid.org/0000-0001-9908-1020)
- M. Rejmund
- J. Dudouet (ORCID: https://orcid.org/0000-0002-9018-6763)
- W. Z. Xu (ORCID: https://orcid.org/0000-0002-7799-9321)
- O. Stézowski (ORCID: https://orcid.org/0000-0002-3387-8253)
- S. J. Sun (ORCID: https://orcid.org/0009-0004-9008-8401)
- S. Jehangir
- A. Navin
- E. Clément
- J. A. Sheikh (ORCID: https://orcid.org/0000-0001-7852-0469)
- E.H. Wang
- A. Lemasson (ORCID: https://orcid.org/0000-0002-9434-8520)
- Mojahed Abushawish
- C. F. Jiao (ORCID: https://orcid.org/0000-0002-5292-5158)
- Shaoyun Wang (ORCID: https://orcid.org/0000-0002-4196-6544)
- J. H. Hamilton (ORCID: https://orcid.org/0000-0002-0770-0945)
- H. Zhang
- S. Bhattacharyya (ORCID: https://orcid.org/0000-0002-1712-5825)
Institutions
- Université Claude Bernard Lyon 1 (FR)
- Variable Energy Cyclotron Centre (IN)
- Centre National de la Recherche Scientifique (FR)
- University of Kashmir (IN)
- Lawrence Berkeley National Laboratory (US)
- Shandong University (CN)
- Sun Yat-sen University (CN)
- Homi Bhabha National Institute (IN)
- Vanderbilt University (US)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Institut National de Physique Nucléaire et de Physique des Particules (FR)
- Grand Accélérateur National d'Ions Lourds (FR)
- Weihai Science and Technology Bureau (CN)
- Government Medical College (IN)
- Islamic University of Science and Technology (IN)
- Tsinghua University (CN)
Publication Details
- Journal
- EPJ Web of Conferences
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1051/epjconf/202532400022
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- U.S. Department of Energy
- Vanderbilt University
- Shandong University
- National Natural Science Foundation of China
- Indo-French Centre for the Promotion of Advanced Research
- Lawrence Berkeley National Laboratory