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Pion Production via Proton Synchrotron Radiation in Strong Magnetic Fields in Relativistic Field Theory: Scaling Relations and Angular Distributions
Tomoyuki Maruyama, Myung-Ki Cheoun, Toshitaka Kajino +1
We study pion production by proton synchrotron radiation in the presence of a strong magnetic field when the Landau numbers of the initial and final protons are $n_{i,f} \sim 10^4…
Constraints on modified Gauss-Bonnet gravity during big bang nucleosynthesis
Motohiko Kusakabe, Seoktae Koh, K. S. Kim +1
The modified gravity is considered to be one of possible explanations of the accelerated expansions of the present and the early universe. We study effects of the modified gravity…
Corrected constraints on big bang nucleosynthesis in a modified gravity model of
Motohiko Kusakabe, Seoktae Koh, K. S. Kim +1
Big bang nucleosynthesis in a modified gravity model of is investigated. The only free parameter of the model is a power-law index . We find cosmological solut…
Equation of state for neutron stars with hyperons and quarks in relativistic Hartree-Fock approximation
Tsuyoshi Miyatsu, Myung-Ki Cheoun, Koichi Saito
We construct the equation of state (EoS) for neutron stars explicitly including hyperons and quarks. Using the quark-meson coupling model with relativistic Hartree-Fock approximati…
Quantum Field Theoretic Treatment of Pion Production via Proton Synchrotron Radiation in Strong Magnetic Fields: Effects of Landau Levels
Tomoyuki Maruyama, Myung-Ki Cheoun, Toshitaka Kajino +3
We study pion production from proton synchrotron radiation in the presence of strong magnetic fields. We derive the exact proton propagator from the Dirac equation in a strong magn…