Ingredients of nuclear matrix element for two-neutrino double-beta decay of 48 Ca

Y. Iwata1, N. Shimizu1, Y. Utsuno2, M. Honma3, T. Abe4, and T. Otsuka1,4,5 1Center for Nuclear Study, School of Science, The University of Tokyo, Japan 2Japan Atomic Energy Agency, Japan 3Center for Mathematical Sciences, University of Aizu, Japan 4Department of Physics, School of Science, The University of Tokyo, Japan 5National Superconducting Cyclotron Laboratory, Michigan State University, USA