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Related papers: Finite-temperature spectral function of the vector…

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We present results for meson spectral functions at non-zero momentum at temperatures both below and above Tc, obtained in quenched simulations for a number of valence quark masses. For the lightest quark masses, a clear difference between…

High Energy Physics - Lattice · Physics 2008-11-26 Gert Aarts , Chris Allton , Justin Foley , Simon Hands , Seyong Kim

We investigate the dependence of the chiral condensate $<\bar qq>$ on the temperature and quark density using the soft-wall holographic model of QCD, adopting geometries with black holes at finite temperature and quark chemical potential…

High Energy Physics - Phenomenology · Physics 2012-08-28 Pietro Colangelo , Floriana Giannuzzi , Stefano Nicotri , Vincenzo Tangorra

The in-medium behavior of ground-state $q\bar{q}$ mesons, where $q \in \{u,d,s,c\}$, in vector and axial-vector channels is studied based on the spectral analysis for mesonic correlators at finite temperature and zero chemical potential. We…

High Energy Physics - Phenomenology · Physics 2020-09-23 Ling-feng Chen , Si-Xue Qin , Yu-xin Liu

We propose a unified approach to study meson, nucleon and $\Delta$-baryon properties at zero and finite temperatures in the context of hard-wall AdS/QCD model. We first combine some previous works dealing with mesons and baryons separately,…

High Energy Physics - Phenomenology · Physics 2016-05-25 Zhiyuan Wang , Bo-Qiang Ma

Descent extensions of the soft-wall model are used to accommodate two variants of Regge trajectories of vector meson excitations. At non-zero temperatures, various options for either sequential or instantaneous disappearance of vector…

High Energy Physics - Phenomenology · Physics 2016-10-19 Rico Zöllner , Burkhard Kampfer

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 investigate the in-medium modifications of heavy quarkonia in the vector channel and the heavy quark diffusion coefficient by comparing Euclidean correlators from the lattice to a perturbative spectral function. On the lattice side, we…

High Energy Physics - Lattice · Physics 2020-02-05 Anna-Lena Lorenz , Heng-Tong Ding , Olaf Kaczmarek , Hiroshi Ohno , Hauke Sandmeyer , Hai-Tao Shu

We present results of modeling the temperature dependence of the spatial string tension and thermal phase transition in a five-dimensional framework nowadays known as AdS/QCD. For temperatures close to the critical one we find a behaviour…

High Energy Physics - Phenomenology · Physics 2008-11-26 Oleg Andreev , Valentine I. Zakharov

A Hawking-Page phase transition between AdS thermal and AdS Black Hole was presented as a mechanism for explaining the QCD deconfinement phase transition within holographic models. In order to implement temperature dependence in the…

High Energy Physics - Phenomenology · Physics 2023-11-23 Matteo Rinaldi , Vicente Vento

We give a further study on chiral phase diagram in the improved soft-wall AdS/QCD model with $2+1$ flavors. The equations of motion for the octet pseudoscalar, vector and axial-vector mesons are derived to compute the octet meson spectra…

High Energy Physics - Phenomenology · Physics 2019-09-18 Zhen Fang , Yue-Liang Wu , Lin Zhang

We have calculated spectral functions associated with hadronic current correlation functions for vector currents at finite temperature. We made use of a model with chiral symmetry, temperature-dependent coupling constants and…

Nuclear Theory · Physics 2007-05-23 Xiangdong Li , Hu Li , C. M. Shakin , Qing Sun , Huangsheng Wang

We investigate the static scaling behavior of the chiral condensate near the two-flavor critical point within the framework of the soft-wall AdS/QCD. The scaling functions are extracted from the chiral order parameters and are found to…

High Energy Physics - Phenomenology · Physics 2025-07-31 Zhongzheng Zhang , Danning Li , Lang Yu , Zhibin Li , Xinyang Wang

We have made an angle-resolved photoemission study of a one-dimensional (1D) Mott-Hubbard insulator Na_{0.96}V_{2}O_{5} and found that the spectra of the V 3d lower Hubbard band are strongly dependent on the temperature. We have calculated…

Strongly Correlated Electrons · Physics 2009-10-31 K. Kobayashi , T. Mizokawa , A. Fujimori , M. Isobe , Y. Ueda , T. Tohyama , S. Maekawa

In quantum field theories at finite temperature spectral functions describe how particle systems behave in the presence of a thermal medium. Although data from lattice simulations can in principle be used to determine spectral function…

High Energy Physics - Lattice · Physics 2023-01-11 Peter Lowdon , Owe Philipsen

We calculate the photon emission rate and the electrical conductivity of the QGP at finite temperature and finite chemical potential using AdS/QCD approximations in an AdS Reissner Nordstrom background. To do so, we supposed the medium…

High Energy Physics - Phenomenology · Physics 2016-11-29 Miguel Angel Martin Contreras , Jose Maria Rolando Roldan

We develop a temperature dependent empirical pseudopotential theory to study the electronic and optical properties of self-assembled quantum dots (QDs) at finite temperature. The theory takes the effects of both lattice expansion and…

Materials Science · Physics 2015-06-04 Jianping Wang , Ming Gong , Guang-Can Guo , Lixin He

Finite temperature charmonium spectral functions in the pseudoscalar and vector channels are studied in lattice QCD with 2+1 flavours of dynamical Wilson quarks, on fine isotropic lattices (with a lattice spacing of 0.057 fm), with a…

Within an extended soft wall model, we study the temperature dependence of the lowest vector meson states. Scales are adjusted by using as input the $\rho$ meson mass in vacuum and the velocity of sound from lattice QCD which displays a…

High Energy Physics - Phenomenology · Physics 2018-08-03 Rico Zöllner , Burkhard Kampfer

By using a thermal Finite Energy QCD Sum Rule, we are able to establish the temperature dependence of the $g_{\omega \rho \pi}(T)$ strong coupling. It turns out that this coupling decreases as a function of temperature, vanishing at the…

High Energy Physics - Phenomenology · Physics 2009-10-31 C. A. Dominguez , M. Loewe

We consider mesons composed of light and heavy quarks and discuss the construction of the corresponding meson wave functions in soft-wall AdS/QCD. We specifically take care that constraints imposed by chiral symmetry breaking and by the…

High Energy Physics - Phenomenology · Physics 2013-03-04 Thomas Gutsche , Valery E. Lyubovitskij , Ivan Schmidt , Alfredo Vega