89 citations · 166 across the 10 of their papers we have counts for
10 papers
Chiral phase transition and color superconductivity in an extended NJL model with higher-order multi-quark interactions
K. Kashiwa, H. Kouno, T. Sakaguchi +2
The chiral phase transition and color superconductivity in an extended NJL model with eight-quark interactions are studied. The scalar-type nonlinear term hastens the chiral phase…
Chiral phase transition in an extended NJL model with higher-order multi-quark interactions
Kouji Kashiwa, Hiroaki Kouno, Tomohiko Sakaguchi +2
The chiral phase transition is studied in an extended Nambu--Jona-Lasinio model with eight-quark interactions. Equations for scalar and vector quark densities, derived in the mean…
Meson loop effect on high density chiral phase transition
Tomohiko Sakaguchi, Kouji Kashiwa, Masayuki Matsuzaki +2
We test the stability of the mean-field solution in the Nambu--Jona-Lasinio model. For stable solutions with respect to both the σand πdirections, we investigate effects of the mes…
The Auxiliary Field Method in Quantum Mechanical Four-Fermi Models -- A Study Toward Chiral Condensation in QED
Taro Kashiwa, Tomohiko Sakaguchi
A study for checking validity of the auxiliary field method (AFM) is made in quantum mechanical four-fermi models which act as a prototype of models for chiral symmetry breaking in…
Auxiliary Field Meson Model at Finite Temperature and Density
H. Kouno, T. Sakaguchi, K. Kashiwa +4
Starting from many quark interactions, we construct a nonlinear sigma-omega model at finite temperature and density. The mesons are introduced as auxiliary fields. Effective quark-…
Flavor quark at high temperature from a holographic model
Kazuo Ghoroku, Tomohiko Sakaguchi, Nobuhiro Uekusa +1
Gauge theory with light flavor quark is studied by embedding a D7 brane in a deconfinement phase background newly constructed. We find a phase transition by observing a jump of the…