Isospin symmetry breaking and large-scale shell-model calculations with the Sakurai-Sugiura method Takahiro Mizusaki, Kazunari Kaneko, Yang Sun and Shigeru Tazaki EPJ Web of Conferences, 93 (2015) 01051 Published online: 28 May 2015 DOI: 10.1051/epjconf/20159301051