Open AccessStructures and production cross sections of p-shell Lambda-hypernuclei calculated with multi-configuration shell model
Author(s) -
Atsushi Umeya,
T. Motoba,
K. Itonaga
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1643/1/012110
Subject(s) - physics , shell (structure) , lambda , algorithm , high resolution , atomic physics , computer science , optics , geology , mechanical engineering , engineering , remote sensing
The high-resolution data of the 10 B ( e, e′K + ) Λ 10 Be experiment done at the Jefferson National Laboratory reported a new bump, which cannot be explained by the DWIA calculation by employing the conventional shell-model wave functions. To describe the new bump, we have extended the model space by introducing a new configuration with 1 ħω excitation for both nuclear and hyperon states. We show that the DWIA calculation by using the extended shell-model wave functions successfully explains the new bump for the first time, and that the p -state Λ in the lower molecular orbit plays an important role in the appearance of the new bump.