From first to second minimum: Parity-dependent level densities in $^{240,242}$Pu
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866911404160712704 |
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| author | Rahmatinejad, A. Shneidman, T. M. Jovancevic, N. |
| author_facet | Rahmatinejad, A. Shneidman, T. M. Jovancevic, N. |
| contents | We calculate the parity-dependent level density ratios for $^{240,242}$Pu across a broad range of quadrupole deformations, from the spherical configuration up to the superdeformed region, explicitly including both the ground-state minimum and the second minimum (fission isomer). The parity-equilibration energy, defined as the excitation energy at which positive- and negative-parity level densities approach equilibrium, is compared between configurations. A significant reduction is observed near the second minimum, indicating a faster equilibration process in this region. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2601_20329 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | From first to second minimum: Parity-dependent level densities in $^{240,242}$Pu Rahmatinejad, A. Shneidman, T. M. Jovancevic, N. Nuclear Theory We calculate the parity-dependent level density ratios for $^{240,242}$Pu across a broad range of quadrupole deformations, from the spherical configuration up to the superdeformed region, explicitly including both the ground-state minimum and the second minimum (fission isomer). The parity-equilibration energy, defined as the excitation energy at which positive- and negative-parity level densities approach equilibrium, is compared between configurations. A significant reduction is observed near the second minimum, indicating a faster equilibration process in this region. |
| title | From first to second minimum: Parity-dependent level densities in $^{240,242}$Pu |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2601.20329 |