87 citations · 99 across the 7 of their papers we have counts for
8 papers
Charge exchange reactions with central and tensor interactions and nuclear matrix elements associated with double-beta-decay neutrinos and astro neutrinos
Hiroyasu Ejiri, Yoritaka Iwata
Nuclear matrix elements (NMEs) for neutrinoless beta-beta decays (DBD) and inverse-beta decays (IBD) are crucial for studying neutrino properties beyond and within the standard mod…
Machine Learning Insights into Discrepancies Between Theoretical and Experimental Fission Barrier Heights
Kun Ratha Kean, Yoritaka Iwata
Accurate determination of nuclear fission barrier heights is essential for understanding nuclear stability, fission dynamics, and nucleosynthesis. However, theoretical models such…
Dynamical symmetry breaking described by cubic nonlinear Klein-Gordon equations
Yasuhiro Takei, Yoritaka Iwata
The dynamical symmetry breaking associated with the existence and non-existence of breather solutions is studied. Here, nonlinear hyperbolic evolution equations are calculated usin…
Low-energy neutrino responses for 71Ga by electron capture rates, charge exchange reactions and shell model calculations
Yoritaka Iwata, Hiroyasu Ejiri, Shahariar Sarkar
Weak Gamow-Teller (GT) responses for low-lying states in are crucial for studying low-energy solar neutrinos and the Ga anomaly, i.e., the possible transition…
Time-dependent finite-dimensional dynamical system representation of breather solutions
Yoritaka Iwata, Yasuhiro Takei
A concept of finite-dimensional dynamical system representation is introduced. Since the solution trajectory of partial differential equations are usually represented within infini…
Effect of Spin-Dependent Short-Range Correlations on Nuclear Matrix Elements for Neutrinoless Double Beta Decay of Ca
S. Sarkar, Y. Iwata
The neutrinoless double beta decay is a pivotal weak nuclear process that holds the potential to unveil the Majorana nature of neutrinos and predict their absolute masses. In this…
Large-scale shell-model analysis of the neutrinoless decay of Ca
Y. Iwata, N. Shimizu, T. Otsuka +4
We present the nuclear matrix element for the neutrinoless double-beta decay of Ca based on large-scale shell-model calculations including two harmonic oscillator shells ($s…
Ingredients of nuclear matrix element for two-neutrino double-beta decay of 48Ca
Y. Iwata, N. Shimizu, Y. Utsuno +3
Large-scale shell model calculations including two major shells are carried out, and the ingredients of nuclear matrix element for two-neutrino double beta decay are investigated.…