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We study the influence of a background magnetic field on the $J/\psi$ vector meson in a DBI-extension of the soft wall model, building upon our earlier work Phys. Rev. D91, 086002 (2015). In this specific holographic QCD model, we discuss…

High Energy Physics - Theory · Physics 2018-04-04 David Dudal , Thomas G. Mertens

The latest experimental results in relativistic heavy-ion collisions show that the matter there produced requires transport coefficients because of the important collective properties found. We review the theoretical calculation of these…

High Energy Physics - Phenomenology · Physics 2015-06-03 Juan M. Torres-Rincon

We evaluate thermodynamical quantities and the transport coefficients of a dense and hot hadronic matter based on the event generator URASiMA (Ultra-Relativistic AA collision Simulator based on Multiple Scattering Algorithm) with periodic…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. Sasaki , O. Miyamura , S. Muroya , C. Nonaka

We have refined a model for charm fragmentation at hadron colliders. This model can also be applied to the photoproduction of charm. We investigate the effect of fragmentation on the distribution of produced charm quarks. The drag effect is…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Norrbin , T. Sjöstrand

We present the first study of the quark mass dependence of the heavy quark momentum and spatial diffusion coefficients using lattice QCD with light dynamical quarks corresponding to a pion mass of 320 MeV. We find that, for the temperature…

Elastic scattering of charm (c) and bottom (b) quarks via D- and B-meson resonance states in an expanding, strongly interacting quark-gluon plasma is investigated. Drag and diffusion coefficients are calculated from an effective model based…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. van Hees , V. Greco , R. Rapp

Several transport models have been employed in recent years to analyze heavy-flavor meson spectra in high-energy heavy-ion collisions. Heavy-quark transport coefficients extracted from these models with their default parameters vary,…

Two classes of jet correlations in hot and dense matter are explored. Correlations between very high transverse momentum hadrons within a jet sample the gluon density of the medium, where, the minimal modification on the same side as the…

Nuclear Theory · Physics 2008-11-26 A. Majumder

We study the spectroscopy and transport properties of charmed mesons in a thermal medium by applying an effective field theory based on chiral and heavy-quark symmetries in the imaginary time formalism. Relying on unitarity constraints and…

High Energy Physics - Phenomenology · Physics 2022-09-21 Juan M. Torres-Rincon , Glòria Montaña , Àngels Ramos , Laura Tolos

The drag and diffusion coefficients of heavy quarks propagating through quark gluon plasma (QGP) have been evaluated using Hard Thermal Loop (HTL) approximations. The HTL corrections to the relevant propagators and vertices have been…

High Energy Physics - Phenomenology · Physics 2013-07-10 Surasree Mazumder , Trambak Bhattacharyya , Jan-e Alam

The strongly interacting matter created in relativistic heavy-ion collisions possesses several conserved quantum numbers, such as baryon number, strangeness, and electric charge. The diffusion process of these charges can be characterized…

High Energy Physics - Phenomenology · Physics 2024-11-06 Sourav Dey , Amaresh Jaiswal , Hiranmaya Mishra

The universality of electric charge as a quantum number allows thermoelectric properties to manifest across diverse systems, starting from a hot quantum chromodynamic matter in heavy-ion collisions at a high energy scale to semiconductors…

High Energy Physics - Phenomenology · Physics 2026-02-20 Kamaljeet Singh , Kshitish Kumar Pradhan , Raghunath Sahoo

The objective of this article is to highlight certain features of a number of coefficients that appear in models of phenomena of transport in anisotropic porous media, especially the coefficient of dispersion, the 2nd rank tensor D_{ij},…

Fluid Dynamics · Physics 2009-05-12 Jacob Bear , Leonid G. Fel , Yoram Zimmels

The description of excitations in hot and dense (hadronic) matter is discussed with emphasis on the use of correlation functions as a common framework for comparing different model (and QCD lattice) calculations with each other. Typical…

Nuclear Theory · Physics 2009-11-07 R. Rapp

Modified thermal distributions (dispersion relations) are introduced within both the MATTER and LBT event generators used to describe jet modification in a heavy-ion collision, within the JETSCAPE framework. Hard partons, propagating…

High Energy Physics - Phenomenology · Physics 2026-01-08 Ritoban Datta , Abhijit Majumder

I discuss topics in the strong QCD dynamics that are of relevance to studies of the $B$ mesons and to the spectroscopy of heavy hadrons. In particular the limitations from the hadronic dynamics for the determination of the weak-interaction…

High Energy Physics - Phenomenology · Physics 2009-05-22 M. B. Voloshin

Mesons with heavy flavor content are an exceptional probe of the hot QCD medium produced in heavy-ion collisions. In the past few years, significant progress has been made toward describing the modification of the properties of heavy mesons…

High Energy Physics - Phenomenology · Physics 2023-07-10 Gloria Montana , Angels Ramos , Laura Tolos , Juan M. Torres-Rincon

We use up to fourth-order charm fluctuations and their correlations with net baryon number, electric charge, and strangeness fluctuations, calculated within the framework of lattice QCD, to study the continuum partial pressure contributions…

High Energy Physics - Lattice · Physics 2025-04-02 Sipaz Sharma , Frithjof Karsch , Peter Petreczky

We study the dynamics of charm quarks in the partonic medium and its implication to the di-electron spectra in high energy heavy ion collisions. The charm quarks traversing a thermal medium is simulated by the relativistic Langevin equation…

Nuclear Theory · Physics 2014-05-22 Hao-jie Xu , Xin Dong , Li-juan Ruan , Qun Wang , Zhang-bu Xu , Yi-fei Zhang

The investigation of the diffusive transport of charged particles in a turbulent magnetic field remains a subject of considerable interest. Research has most frequently concentrated on determining the diffusion coefficient in the presence…