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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.10925 |
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| _version_ | 1866908526145699840 |
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| author | Wang, Tao |
| author_facet | Wang, Tao |
| contents | To solve the Cd puzzle (spherical nucleus puzzle), I have proposed a new spherical-like $γ$-soft nucleus. Since shape coexistence often occurs in such nuclei, explicit spherical-like $γ$-soft spectra are not easily identified. In this paper, I finally find the direct evidence for the existence of the new spherical-like $γ$-soft nucleus. $^{106}$Pd is in fact a typical spherical-like $γ$-soft nucleus. The low-lying parts, up to the $10_{1}^{+}$ state, under 4000 keV, of the spherical-like $γ$-soft spectra are verified. The B(E2) values and the quadrupole moments of the low-lying levels are also studied. By comparison, the new spherical-like $γ$-soft mode is confirmed. Moreover $^{104,108}$Pd are also discussed. These results completely disprove the possibility of the phonon excitations of the spherical nucleus in the Cd-Pd nuclei region. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_10925 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Typical new spherical-like $γ$-soft spectra in $^{104,106,108}$Pd Wang, Tao Nuclear Theory To solve the Cd puzzle (spherical nucleus puzzle), I have proposed a new spherical-like $γ$-soft nucleus. Since shape coexistence often occurs in such nuclei, explicit spherical-like $γ$-soft spectra are not easily identified. In this paper, I finally find the direct evidence for the existence of the new spherical-like $γ$-soft nucleus. $^{106}$Pd is in fact a typical spherical-like $γ$-soft nucleus. The low-lying parts, up to the $10_{1}^{+}$ state, under 4000 keV, of the spherical-like $γ$-soft spectra are verified. The B(E2) values and the quadrupole moments of the low-lying levels are also studied. By comparison, the new spherical-like $γ$-soft mode is confirmed. Moreover $^{104,108}$Pd are also discussed. These results completely disprove the possibility of the phonon excitations of the spherical nucleus in the Cd-Pd nuclei region. |
| title | Typical new spherical-like $γ$-soft spectra in $^{104,106,108}$Pd |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2501.10925 |