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Related papers: Quark Number Susceptibility and QCD Phase Transiti…

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We study the quark number susceptibility in holographic QCD with a finite chemical potential or under an external magnetic field at finite temperature. We first consider the quark number susceptibility with the chemical potential. We…

High Energy Physics - Theory · Physics 2014-11-20 Youngman Kim , Yoshinori Matsuo , Woojoo Sim , Shingo Takeuchi , Takuya Tsukioka

We study the effect of a finite quark mass on the quark number susceptibility in the framework of holographic QCD. We work in a bottom-up model with a deformed AdS black hole and D3/D7 model to calculate the quark number susceptibility at…

High Energy Physics - Phenomenology · Physics 2011-11-03 Kyung-il Kim , Youngman Kim , Shingo Takeuchi , Takuya Tsukioka

We utilize lattice simulations of the dimensionally reduced effective field theory (EQCD) to determine the quark number susceptibility of QCD at high temperature ($T>2T_c$). We also use analytic continuation to obtain results at finite…

High Energy Physics - Lattice · Physics 2008-11-26 Ari Hietanen , Kari Rummukainen

We study the quark number susceptibility, an indicator of QCD phase transition, in the hard wall and soft wall models of hQCD. We find that the susceptibilities in both models are the same, jumping up at the deconfinement phase transition…

High Energy Physics - Phenomenology · Physics 2010-04-15 Kwanghyun Jo , Youngman Kim , Hyun Kyu Lee , Sang-Jin Sin

Encouraged by recent developments in AdS/QCD models for light quark system, we study heavy quarkonium in the framework of the AdS/QCD models. We calculate the masses of $c\bar c$ vector meson states using the AdS/QCD models at zero and at…

High Energy Physics - Phenomenology · Physics 2008-11-26 Youngman Kim , Jong-Phil Lee , Su Houng Lee

We study the thermodynamics of soft wall model in AdS/QCD framework. The low temperature phase of QCD is described by thermal AdS and high temperature phase by AdS Black hole solution of five dimensional gravity with negative cosmological…

High Energy Physics - Theory · Physics 2012-08-31 Shobhit Sachan , Sanjay Siwach

The quark number susceptibility is expressed as an integral in terms of dressed quark propagator and dressed vector vertex. It is then investigated with the latter two- and three-point functions confronted with a Dyson-Schwinger equation…

High Energy Physics - Phenomenology · Physics 2010-04-28 Min He , Jian-Feng Li , Wei-Min Sun , Hong-Shi Zong

We use three dimensional reduced effective field theory (EQCD) and lattice calculations to determine the quark number susceptibility of QCD at high temperature. We find our results to agree well with known perturbative expansion as well as…

High Energy Physics - Lattice · Physics 2008-11-26 A. Hietanen , K. Rummukainen

We report first results on the strange quark number susceptibility, chi_s, over a large range of temperatures, mainly in the plasma phase of QCD. Chi_s jumps across the phase transition temperature, T_c, and grows rapidly with temperature…

High Energy Physics - Lattice · Physics 2009-11-07 Rajiv V. Gavai , Sourendu Gupta

We study the quark number susceptibility of the hot quark-gluon plasma at zero and non-zero quark number density, using lattice Monte Carlo simulations of an effective theory of QCD, electrostatic QCD (EQCD). Analytic continuation is used…

High Energy Physics - Lattice · Physics 2009-12-15 Ari Hietanen , Kari Rummukainen

We report the measurement of quark number susceptibilities (QNS) and their temperature dependence from simulations of QCD with two flavours of light dynamical staggered quarks at finite temperature on 8 * 32^3 lattices. From the radius of…

High Energy Physics - Lattice · Physics 2017-04-05 Saumen Datta , Rajiv V. Gavai , Sourendu Gupta

The thermal mass spectra of scalar and pseudo scalar mesons are studied in an IR-improved soft-wall AdS/QCD model. The Reissner-Nordstrom AdS black hole metric is introduced to describe both the finite temperature and density effects. The…

High Energy Physics - Phenomenology · Physics 2013-10-08 Ling-Xiao Cui , Yue-Liang Wu

In this paper we calculate the quark number susceptibility (QNS) of QCD at finite temperature under the rainbow-ladder and Ball-Chiu type truncation schemes of the Dyson-Schwinger approach. It is found that the difference between the result…

High Energy Physics - Phenomenology · Physics 2011-03-10 Yu Jiang , Liu-Jun Luo , Hong-Shi Zong

We extend the predictive soft-wall AdS/QCD model to a thermodynamic model by considering the black hole metric. A modified bulk vacuum expectation value and a modified coefficient for the quartic term in the bulk scalar potential are…

High Energy Physics - Phenomenology · Physics 2015-06-03 Ling-Xiao Cui , Shingo Takeuchi , Yue-Liang Wu

We use the soft-wall AdS/QCD model to investigate the finite-temperature effects on the spectral function in the vector channel. The dissociation of the vector meson tower onto the AdS black hole leads to the in-medium mass shift and the…

High Energy Physics - Phenomenology · Physics 2014-11-18 Mitsutoshi Fujita , Kenji Fukushima , Tatsuhiro Misumi , Masaki Murata

Results from our recent investigations of quark number susceptibilities in both quenched and 2-flavour QCD are presented as a function of valence quark mass and temperature. A strong reduction (approx. 40%) is seen in the strange quark…

High Energy Physics - Phenomenology · Physics 2015-06-25 Rajiv V. Gavai

Results from our recent investigations of quark number susceptibilities in both quenched and 2-flavour QCD are presented as a function of valence quark mass and temperature. A strong reduction (~40%) is seen in the strange quark…

High Energy Physics - Phenomenology · Physics 2009-11-07 Rajiv V. Gavai

We discuss radiative corrections to how quark mass thresholds are crossed, as a function of the temperature, in basic thermodynamic observables such as the pressure, the energy and entropy densities, and the heat capacity of high…

High Energy Physics - Phenomenology · Physics 2011-08-01 M. Laine , Y. Schroder

We report the continuum limit of quark number susceptibilities in quenched QCD. Deviations from ideal gas behaviour at temperature T increase as the lattice spacing is decreased from T/4 to T/6, but a further decrease seems to have very…

High Energy Physics - Lattice · Physics 2009-11-07 Rajiv V. Gavai , Sourendu Gupta

With the aid of the vector Ward-Takahashi identity we derive a general formula for the quark number susceptibility (QNS) which expresses the QNS as an integral expression only involving the full quark propagator at finite temperature and…

High Energy Physics - Phenomenology · Physics 2014-11-20 Yu Jiang , Hui-xia Zhu , Wei-min Sun , Hong-shi Zong
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