Core of F25 in the rotational model
| العنوان: | Core of F25 in the rotational model |
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| المؤلفون: | H. L. Crawford, C. M. Campbell, R. M. Clark, I. Y. Lee, A. O. Macchiavelli, C. Morse, P. Fallon, C. Santamaria, M. Cromaz |
| المصدر: | Physical Review C. 102 |
| بيانات النشر: | American Physical Society (APS), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, Rotational model, Quadrupole, Atomic physics, Ground state, Excitation, Rotational energy |
| الوصف: | In a recent experiment, carried out at the Radioactive Isotope Beam Factory/RIKEN, the $^{25}\mathrm{F}(p,2p)^{24}\mathrm{O}$ reaction was studied at 270 MeV/A in inverse kinematics. Derived spectroscopic factors suggest that the effective core of $^{25}\mathrm{F}$ significantly differs from a free $^{24}\mathrm{O}$ nucleus. We interpret these results within the particle-rotor model and show that the experimental level scheme of $^{25}\mathrm{F}$ can be understood in the rotation-aligned coupling scheme with its $5/{2}_{1}^{+}$ ground state as the bandhead of a decoupled band. The excitation energies of the observed $1/{2}_{1}^{+}$ and $9/{2}_{1}^{+}$ states correlate strongly with the rotational energy of the effective core, seen by the odd proton, and allow us to estimate its ${2}^{+}$ energy at $\ensuremath{\approx}3.2\phantom{\rule{0.28em}{0ex}}\mathrm{MeV}$ and a moderate quadrupole deformation ${\ensuremath{\epsilon}}_{2}\ensuremath{\approx}0.15$. The measured fragmentation of the $\ensuremath{\pi}{d}_{5/2}$ single-particle strength is discussed, and some further experiments suggested. |
| تدمد: | 2469-9993 2469-9985 |
| DOI: | 10.1103/physrevc.102.041301 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::2b52914b7c7ae394f376a7aa52ae72a9 https://doi.org/10.1103/physrevc.102.041301 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........2b52914b7c7ae394f376a7aa52ae72a9 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24699993 24699985 |
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| DOI: | 10.1103/physrevc.102.041301 |