Second T = 3/2 state in $^9$B and the isobaric multiplet mass equation
Nuclear Experiment
2018-11-28 v1
Abstract
Recent high-precision mass measurements and shell model calculations~[Phys. Rev. Lett. {\bf 108}, 212501 (2012)] have challenged a longstanding explanation for the requirement of a cubic isobaric multiplet mass equation for the lowest isospin quartet. The conclusions relied upon the choice of the excitation energy for the second state in B, which had two conflicting measurements prior to this work. We remeasured the energy of the state using the reaction and significantly disagree with the most recent measurement. Our result supports the contention that continuum coupling in the most proton-rich member of the quartet is not the predominant reason for the large cubic term required for nuclei.
Keywords
Cite
@article{arxiv.1810.02392,
title = {Second T = 3/2 state in $^9$B and the isobaric multiplet mass equation},
author = {N. J. Mukwevho and B. M. Rebeiro and D. J. Marín-Lámbarri and S. Triambak and P. Adsley and N. Y. Kheswa and R. Neveling and L. Pellegri and V. Pesudo and F. D. Smit and E. H. Akakpo and J. W. Brümmer and S. Jongile and M. Kamil and P. Z. Mabika and F. Nemulodi and J. N. Orce and P. Papka and G. F. Steyn and W. Yahia-Cherif},
journal= {arXiv preprint arXiv:1810.02392},
year = {2018}
}