Access by Xinjiang University

Deconfinement phase transition in holographic QCD with matter

Youngman Kim^*

Bum-Hoon Lee^†

Siyoung Nam^‡ and Chanyong Park^§

Sang-Jin Sin^∥

School of Physics, Korea Institute for Advanced Study, Seoul 130-722, Korea

Department of Physics, Sogang University, Seoul, Korea 121-742 and CQUeST, Sogang University, Seoul, Korea 121-742

CQUeST, Sogang University, Seoul, Korea 121-742

Department of Physics, BK21 Program Division, Hanyang University, Seoul 133-791, Korea

^*chunboo81@kias.re.kr
^†bhl@sogang.ac.kr
^‡stringphy@gmail.com
^§cyong21@sogang.ac.kr
^∥sjsin@hanyang.ac.kr

PDF

Phys. Rev. D 76, 086003 – Published 22 October, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.086003

Abstract

In the framework of a holographic QCD approach we study the influence of matter on the deconfinement temperature $T_{c}$ . We first consider the quark flavor number ( $N_{f}$ ) dependence of $T_{c}$ . We observe that $T_{c}$ decreases with $N_{f}$ , which is consistent with a lattice QCD result. We also delve into how the quark number density $ρ_{q}$ affects the value of $T_{c}$ . We find that $T_{c}$ drops with increasing $ρ_{q}$ . In both cases, we confirm that the contributions from quarks are suppressed by $1 / N_{c}$ , as it should be, compared to the ones from a gravitational action (pure Yang-Mills theory).

Article Text

References (25)

J. M. Maldacena, Adv. Theor. Math. Phys. 2, 231 (1998); Int. J. Theor. Phys. 38, 1113 (1999); S. S. Gubser, I. R. Klebanov, and A. M. Polyakov, Phys. Lett. B 428, 105 (1998).
J. Polchinski and M. J. Strassler, Phys. Rev. Lett. 88, 031601 (2002).
A. Karch and E. Katz, J. High Energy Phys. 06 (2002) 043.
J. Erlich, E. Katz, D. T. Son, and M. A. Stephanov, Phys. Rev. Lett. 95, 261602 (2005).
L. Da Rold and A. Pomarol, Nucl. Phys. B721, 79 (2005).
S. J. Brodsky and G. F. de Teramond, Phys. Rev. Lett. 96, 201601 (2006).
E. Witten, Adv. Theor. Math. Phys. 2, 253 (1998); C. P. Herzog, Phys. Rev. Lett. 98, 091601 (2007).
R. G. Cai and J. P. Shock, arXiv:0705.3388.
C. A. B. Bayona, H. Boschi-Filho, N. R. F. Braga, and L. A. P. Zayas, arXiv:0705.1529.
K.-Y. Kim, S.-J. Sin, and I. Zahed, arXiv:hep-th/0608046; N. Horigome and Y. Tanii, J. High Energy Phys. 01 (2007) 072; S. Nakamura, Y. Seo, S.-J. Sin, and K. P. Yogendran, arXiv:hep-th/0611021; S. Kobayashi, D. Mateos, S. Matsuura, R. C. Myers, and R. M. Thomson, J. High Energy Phys. 02 (2007) 016.
F. Karsch, Nucl. Phys. B, Proc. Suppl. 83, 14 (2000).
F. Karsch, E. Laermann, and A. Peikert, Nucl. Phys. B605, 579 (2001).
Y. Aoki et al., Nature (London) 443, 675 (2006).
J. Braun and H. Gies, Phys. Lett. B 645, 53 (2007).
J. Braun and H. Gies, J. High Energy Phys. 06 (2006) 024.
Y. Kim, S.-J. Sin, K. H. Jo, and H. K. Lee, arXiv:hep-ph/0609008.
Z. Fodor and S. D. Katz, J. High Energy Phys. 03 (2002) 014.
C. R. Allton et al., Phys. Rev. D 68, 014507 (2003).
C. Bernard et al., Phys. Rev. D 71, 034504 (2005).
C. Csaki and M. Reece, J. High Energy Phys. 05 (2007) 062.
K. Ghoroku and M. Yahiro, Phys. Rev. D 73, 125010 (2006).
S. K. Domokos and J. A. Harvey, arXiv:0704.1604.
F. Csikor, G. I. Egri, Z. Fodor, and S. D. Katz, arXiv:hep-lat/0301027.
S.-J. Sin, arXiv:0707.2719.
T. Banks and A. Ukawa, Nucl. Phys. B225, 145 (1983).

Physical Review D

Export citation

Export citation

Deconfinement phase transition in holographic QCD with matter

Abstract

Article Text

References (25)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation