TY - JOUR

T1 - Holographic model at finite temperature with R-charge density

AU - Ghoroku, Kazuo

AU - Nakamura, Akihiro

AU - Yahiro, Masanobu

N1 - Funding Information:
This work has been supported in part by the Grants-in-Aid for Scientific Research (13135223) of the Ministry of Education, Science, Sports, and Culture of Japan.

PY - 2006/7/13

Y1 - 2006/7/13

N2 - We consider a holographic model of QCD at finite temperature with nonzero chemical potentials conjugate to R-charge densities. A critical surface of the confinement-deconfinement phase transition is shown for five-dimensional charged black hole solution given by Behrndt, Cvetič and Sabra. On a special section of the parameter space, we find a critical curve being similar to the one expected in QCD. We calculate meson spectra and decay constants in the confinement phase of this section to see their temperature and chemical potential dependences. We could assure generalized Gell-Mann-Oakes-Renner relation and the reduction of pion velocity near the critical point.

AB - We consider a holographic model of QCD at finite temperature with nonzero chemical potentials conjugate to R-charge densities. A critical surface of the confinement-deconfinement phase transition is shown for five-dimensional charged black hole solution given by Behrndt, Cvetič and Sabra. On a special section of the parameter space, we find a critical curve being similar to the one expected in QCD. We calculate meson spectra and decay constants in the confinement phase of this section to see their temperature and chemical potential dependences. We could assure generalized Gell-Mann-Oakes-Renner relation and the reduction of pion velocity near the critical point.

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U2 - 10.1016/j.physletb.2006.05.076

DO - 10.1016/j.physletb.2006.05.076

M3 - Article

AN - SCOPUS:33745215127

SN - 0370-2693

VL - 638

SP - 382

EP - 387

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -