Hyun-Chul Kim
Pusan National University
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Publication
Featured researches published by Hyun-Chul Kim.
Journal of High Energy Physics | 2007
Deog Ki Hong; Hyun-Chul Kim; Sanjay Siwach; Ho-Ung Yee
We introduce the strong CP-violation in the framework of AdS/QCD model and calculate the electric dipole moments of nucleons as well as the CP-violating pion-nucleon coupling. Our holographic estimate of the electric dipole moments gives for the neutron dn = 1.08 × 10−16 e⋅cm , which is comparable with previous estimates. We also predict that the electric dipole moment of the proton should be precisely the minus of the neutron electric dipole moment, thus leading to a new sum rule on the electric dipole moments of baryons.
Physics Letters B | 2005
Hyun-Chul Kim; M.M. Musakhanov; M. Siddikov
Abstract We investigate the magnetic susceptibility of the QCD vacuum, based on the instanton vacuum. Starting from the instanton liquid model for the instanton vacuum, we derive the light-quark partition function Z [ V , T , m ˆ ] in the presence of the current quark mass m ˆ as well as the external Abelian vector and tensor fields. We calculate a two-point correlation function relevant for the magnetic susceptibility and derive it beyond the chiral limit. We obtain for the different flavors the following magnetic susceptibility: χ u , d 〈 i ψ u , d † ψ u , d 〉 0 ∼ 40 – 45 MeV , while χ s 〈 i ψ s † ψ s 〉 0 ≃ 6 – 10 MeV with the quark condensate 〈 i ψ † ψ 〉 0 .
Physics Letters B | 2006
Ki-Seok Choi; Seung-il Nam; Atsushi Hosaka; Hyun-Chul Kim
We study the
Physics Letters B | 2004
Hyun-Chul Kim; Michal Praszalowicz
eta
Physical Review D | 2004
Ghil-Seok Yang; Hyun-Chul Kim; Michal Praszalowicz; K. Goeke
-photoproduction focusing on the new nucleon resonance which was observed at
Physical Review D | 2005
Antonio Silva; Hyun-Chul Kim; Diana Urbano; K. Goeke
sqrt{s}=1675
Physics Letters B | 1998
Wojciech Broniowski; M. V. Polyakov; Hyun-Chul Kim; K. Goeke
MeV with a narrow decay width (
Physical Review D | 2006
Seung-il Nam; Hyun-Chul Kim; Atsushi Hosaka; M. Musakhanov
sim 10
Physical Review D | 2006
Seung-il Nam; Hyun-Chul Kim
MeV) in the recent GRAAL experiment. Using an effective Lagrangian approach, we compute differential cross sections for the
Physical Review D | 2000
Hyun-Chul Kim; Michal Praszalowicz; K. Goeke
eta