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83 papers · 1 filter
Weak interaction rates of -shell Urca pairs in stellar environment using a shell-model approach
Shweta Sharma, Praveen C. Srivastava, Toshio Suzuki
In this work, the weak interaction rates of -shell nuclei in the hot and dense stellar environment are calculated using the shell model. The {\it ab initio} effective interacti…
Axial-Vector and Tensor Spin Polarization and Chiral Restoration in Quark Matter
Tomoyuki Maruyama, Toshitaka Tatsumi
We study spontaneous spin-polarizations of quark matter with flavour symmetry at zero temperature in the NJL model. In a relativistic framework, there are two types of the…
Shell-model study for allowed and forbidden decay properties in the mass region "south" of Pb
Shweta Sharma, Praveen C. Srivastava, Anil Kumar +3
The large-scale shell-model calculations have been performed for the neutron-rich nuclei in the south region of Pb in the nuclear chart. The -decay properties, such as t…
A Poincaré covariant cascade method for high-energy nuclear collisions
Yasushi Nara, Asanosuke Jinno, Tomoyuki Maruyama +2
We present a Poincaré covariant cascade algorithm based on the constrained Hamiltonian dynamics in an -dimensional phase space to simulate the Boltzmann-type two-body collision…
Neutrino-induced reactions on 18O and implications of 18O mixture in water Cherenkov detectors on supernova neutrino events
Toshio Suzuki, Ken'ichiro Nakazato, Makoto Sakuda
Neutrino-nucleus reaction cross sections on 18O are evaluated by shell-model calculations and compared with those on 16O. Important contributions from Gamow-Teller transitions are…
Neutrino-induced neutral- and charged-current reactions on Ar
Toshio Suzuki, Noritaka Shimizu
Neutrino-induced reactions on Ar are investigated by shell model for Gamow-Teller transitions and random-phase-approximation (RPA) for forbidden transitions. For the 1…