8–13 Sept 2025
Integrated Innovation Building (IIB), RIKEN Kobe Campus
Asia/Tokyo timezone
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Role of the isovector spin-orbit potential in mitigating the CREX-PREX dilemma

8 Sept 2025, 14:00
30m
Auditorium (8F) (Integrated Innovation Building (IIB), RIKEN Kobe Campus)

Auditorium (8F)

Integrated Innovation Building (IIB), RIKEN Kobe Campus

Minatojima-minamimachi 6-7-1, Kobe, Japan
4. Isospin and spin dependence of nuclear interactions and correlations NuSym Scientific Session

Speaker

Dr Marc Salinas (Lawrence Livermore National Laboratory)

Description

The CREX-PREX dilemma involving the weak form factors of calcium-48 and lead-208 challenges models that tie neutron skins to the symmetry energy. We explore a resolution by artificially enhancing the isovector spin-orbit interaction in relativistic mean-field models. This adjustment brings theoretical predictions into agreement with experiment by modifying the neutron distribution in calcium, while leaving lead largely unaffected. However, it disrupts spin-orbit shell structure and magic numbers, suggesting that although promising, this approach may not be the full solution.

Presentation Style Invited Speaker

Author

Mr Athul Kunjipurayil (Florida State University)

Co-authors

Dr Jorge Piekarewicz (Florida State University) Dr Marc Salinas (Lawrence Livermore National Laboratory)

Presentation materials