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Lattice data for the QCD equation of state and the magnetic susceptibility computed near the crossover transition at zero magnetic field are used to determine the input parameters of a five dimensional Einstein-Maxwell-Dilaton holographic…

High Energy Physics - Theory · Physics 2016-02-11 Romulo Rougemont , Renato Critelli , Jorge Noronha

We derived the coronal magnetic field, plasma density, and temperature from the observation of polarization and intensity of radio thermal free-free emission using the Nobeyama Radioheliograph (NoRH) and extreme ultraviolet (EUV)…

We calculate the spatial Wilson line correlator for 2+1 flavor QCD using highly improved staggered quark discretization for fermions and in quenched QCD for a wide range of temperatures, from the chiral crossover temperature…

High Energy Physics - Lattice · Physics 2025-01-31 Dibyendu Bala , Olaf Kaczmarek , Peter Petreczky , Sayantan Sharma , Swagatam Tah

We compute the screening length of mesons with different angular momentum $J$ from two gravity dual theories. Both the asymptotically $AdS_{5}$ and Sakai-Sugimoto metrics are considered in the calculations. Using the dual description of the…

High Energy Physics - Phenomenology · Physics 2010-02-03 Piyabut Burikham , Jun Li

In the present work we are interested in understanding various properties of quark matter subject to strong magnetic fields described by the Nambu-Jona-Lasinio model with Polyakov loop. We start by analysing the differences arising from two…

We study the bottomonium screening masses in a 2+1 flavor QCD medium on the lattice using the Highly Improved Staggered Quark(HISQ) discretization for the quarks. We focus on a wide temperature range in the region $350~{\rm MeV}\le T < 1000…

High Energy Physics - Lattice · Physics 2021-10-15 Peter Petreczky , Sayantan Sharma , Johannes Heinrich Weber

We calculate the screening of the ion-ion potential due to electrons in the presence of a large background magnetic field, at densities of relevance to neutron star crusts. Using the standard approach to incorporate electron screening…

Solar and Stellar Astrophysics · Physics 2015-03-14 Rishi Sharma , Sanjay Reddy

At high temperature measurements of the Polyakov loop suggest a deconfinement transition to the (strongly interacting) quark-gluon plasma. At the same time at the infinitely large temperature the four-dimensional QCD is reduced to the…

High Energy Physics - Lattice · Physics 2015-08-13 L. Ya. Glozman

We investigate chiral phase transitions and the screening masses, pole masses, and thermal widths of neutral pion meson with finite temperature $T$ and magnetic field $B$ in a lattice-improved AdS/QCD model, which is constructed by fitting…

High Energy Physics - Theory · Physics 2024-02-12 Nanxiang Wen , Xuanmin Cao , Jingyi Chao , Hui Liu

Recent cyclotron resonance experiments in n-type CdS at ultra-high magnetic fields have revealed a pronounced maximum of the electron cyclotron mass as a function of temperature. In order to interpret these data, we calculate the…

Statistical Mechanics · Physics 2009-11-07 J. T. Devreese , V. M. Fomin , V. N. Gladilin , Y. Imanaka , N. Miura

In order to study the response of the quantum chromodynamic matter to finite electromagnetic fields, we utilize the Polyakov linear - sigma model (PLSM) in mean-field approximation. Due to participants' momentum imbalance and off-center…

Nuclear Theory · Physics 2021-11-29 Abdel Nasser Tawfik

We present a method to calculate the pion screening mass in 2+1-flavor lattice QCD to $\mathcal{O}(\mu^2_\ell)$, where $\mu_\ell$ is the isoscalar chemical potential. Our approach is based on the expression for the free theory pion…

High Energy Physics - Lattice · Physics 2024-01-09 Prasad Hegde , Rishabh Thakkar

Plasmas screen electromagnetic waves of frequency less than the plasma frequency, omega_p, with a skin depth, delta, specified by the electrical conductivity, sigma. Current estimates of the transport properties of the QCD plasma indicates…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sourendu Gupta

Using a symmetry-preserving treatment of a vector $\times$ vector contact interaction (SCI) at nonzero temperature, we compute the screening masses of flavour-SU(3) ground-state $J^P=0^\pm$, $1^\pm$ mesons, and $J^P=1/2^\pm$, $3/2^\pm$…

High Energy Physics - Phenomenology · Physics 2024-12-24 Chen Chen , Fei Gao , Si-xue Qin

At nonzero temperature in QCD, about the deconfining phase transition there is a "semi" quark gluon plasma (semi-QGP), where the expectation value of the (renormalized) Polyakov loop is less than one. This can be modeled by a semiclassical…

High Energy Physics - Phenomenology · Physics 2010-04-28 Yoshimasa Hidaka , Robert D. Pisarski

Polyakov loop correlations at finite temperature in two-flavor QCD are studied in lattice simulations with the RG-improved gluon action and the clover-improved Wilson quark action. From the simulations on a $16^3 \times 4$ lattice, we…

High Energy Physics - Lattice · Physics 2008-11-26 Y. Maezawa , S. Ejiri , T. Hatsuda , N. Ishii , N. Ukita , S. Aoki , K. Kanaya

We investigate the behavior of the pseudo-critical temperature of $N_f = 2+1$ QCD as a function of a static magnetic background field for different values of the pion mass, going up to $m_\pi \simeq 660$ MeV. The study is performed by…

High Energy Physics - Lattice · Physics 2018-09-19 Massimo D'Elia , Floriano Manigrasso , Francesco Negro , Francesco Sanfilippo

In this study, we calculate the screening masses of forty spin-zero meson and diquark states composed of light, heavy and heavy-light quarks, within a symmetry-preserving framework based on Dyson-Schwinger equations and a vector $\times$…

High Energy Physics - Phenomenology · Physics 2025-08-05 M. A. Ramírez-Garrido , R. J. Hernández-Pinto , I. M. Higuera-Angulo , L. X. Gutiérrez-Guerrero

We investigate correlation functions of the Polyakov loop and static meson/diquark systems with the chiral condensate and the quark number density at finite temperature. In particular the latter observable can give insight in the mechanism…

High Energy Physics - Lattice · Physics 2009-04-14 Kay Huebner

The electromagnetic radiation by quark-gluon plasma in strong magnetic field is calculated. The contributing processes are synchrotron radiation and one--photon annihilation. It is shown that in relativistic heavy--ion collisions at RHIC…

High Energy Physics - Phenomenology · Physics 2013-03-14 Kirill Tuchin