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Radiation of dileptons and photons from high energy nuclear collisions provides information on the space-time evolution of the hot dense matter produced therein. We compute this radiation using relativistic hydrodynamics and a…

核理论 · 物理学 2009-11-07 P. Huovinen , M. Belkacem , P. J. Ellis , J. I. Kapusta

The thermal QCD dilepton production rate is calculated at next-to-leading order in the strong coupling and at finite baryon chemical potential. The two-loop virtual photon self-energy is evaluated using finite temperature field theory and…

核理论 · 物理学 2024-05-08 Jessica Churchill , Lipei Du , Charles Gale , Greg Jackson , Sangyong Jeon

Fluctuations and correlations of conserved quantities in the confined phase of QCD are a viable way to characterize the existence of exotic and missing states with given quantum numbers in the hadronic spectrum. We study a realization of…

高能物理 - 唯象学 · 物理学 2025-01-10 E. Megias , E. Ruiz Arriola , L. L. Salcedo

I give a brief overview of recent theoretical developments concerning the high temperature phase of QCD, and the structure of hadronic wave functions at high energy.

高能物理 - 唯象学 · 物理学 2008-11-26 Jean-Paul Blaizot

In this talk, I discuss methods that allow for a systematic and model-independent calculation of the hadron spectrum. These are lattice QCD and/or its corresponding Effective Field Theories. Assorted results are shown and I take the…

核理论 · 物理学 2020-09-23 Ulf-G. Meißner

QCD matter at finite temperature and density is a subject that has witnessed very impressive theoretical developments in the recent years. In this review I will discuss some new insights on the microscopic degrees of freedom of the QCD…

高能物理 - 格点 · 物理学 2021-09-22 Sayantan Sharma

These are the proceedings of the workshop on ``Lattice QCD, Chiral Perturbation Theory and Hadron Phenomenology'' held at the European Centre for Theoretical Studies in Nuclear Physics and Related Areas from October 2 to 6, 2006. The…

高能物理 - 唯象学 · 物理学 2007-05-23 Ulf-G. Meißner , Gerrit Schierholz

We compute the sphaleron rate on the lattice. We adopt a novel strategy based on the extraction of the spectral density via a modified version of the Backus-Gilbert method from finite-lattice-spacing and finite-smoothing-radius Euclidean…

高能物理 - 格点 · 物理学 2023-12-27 Claudio Bonanno , Francesco D'Angelo , Massimo D'Elia , Lorenzo Maio , Manuel Naviglio

We show how several properties of the QCD axion can be extracted at high precision using only first principle QCD computations. By combining NLO results obtained in chiral perturbation theory with recent Lattice QCD results the full axion…

高能物理 - 唯象学 · 物理学 2017-03-15 Giovanni Grilli di Cortona , Edward Hardy , Javier Pardo Vega , Giovanni Villadoro

A fireball model with time evolution based on transport calculations is used to examine the dilepton emission rate of an ultra-relativistic heavy-ion collision. We assume a transition from hadronic matter to a quark-gluon plasma at a…

高能物理 - 唯象学 · 物理学 2009-10-31 R. A. Schneider , W. Weise

We propose a new parton model and demonstrate that the model describes the relevant experimental data at high energies. The model is based on Pomeron calculus in 1+1 space-time dimensions, as suggested in Ref. [18] and on simple assumptions…

高能物理 - 唯象学 · 物理学 2019-03-27 E. Gotsman , E. Levin , I. Potashnikova

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…

统计力学 · 物理学 2009-11-07 J. T. Devreese , V. M. Fomin , V. N. Gladilin , Y. Imanaka , N. Miura

We discuss recent progress in the study of in-medium heavy quarkonium using first-principles lattice QCD calculations and effective field theory. In particular our focus lies on real-time information carried by QCD spectral functions and we…

高能物理 - 格点 · 物理学 2016-02-17 Alexander Rothkopf

Recently we have shown that it is possible to study the parton to hadron fragmentation function by using the lattice QCD method at the zero temperature. In this paper we extend this to the finite temperature QCD and study the parton to…

综合物理 · 物理学 2019-04-12 Gouranga C Nayak

Progress in calculating the spectrum of excited baryons and mesons in lattice QCD is described. Correlation matrices of sets of spatially-extended hadron operators have been studied and their effectiveness in facilitating the extraction of…

高能物理 - 格点 · 物理学 2010-12-01 Colin Morningstar , A. Bell , C. Y. Chen , D. Lenkner , C. H. Wong , J. Bulava , J. Foley , K. J. Juge , M. Peardon

We review the current status of theories and experiments aiming at an understanding and a determination of the properties of light vector and scalar mesons inside strongly interacting hadronic matter. Starting from a discussion of the…

核理论 · 物理学 2010-06-16 Stefan Leupold , Volker Metag , Ulrich Mosel

We discuss the correlation function of hadronic currents in the Schwinger model at finite temperature $T$. We explicitly construct the retarded correlator in real time and obtain analytical results for the Euclidean correlator on a torus.…

高能物理 - 唯象学 · 物理学 2009-10-22 A. Fayyazuddin , T. H. Hansson , M. A. Nowak , J. J. M. Verbaarschot , I. Zahed

We present a lattice QCD calculation of the charge diffusion coefficient, the electrical conductivity and various susceptibilities of conserved charges, for a range of temperatures below and above the deconfinement crossover. The…

高能物理 - 格点 · 物理学 2015-06-23 Gert Aarts , Chris Allton , Alessandro Amato , Pietro Giudice , Simon Hands , Jon-Ivar Skullerud

We estimate the production rate of photons by the quark-gluon plasma in lattice QCD. We propose a new correlation function which provides better control over the systematic uncertainty in estimating the photon production rate at photon…

高能物理 - 格点 · 物理学 2018-04-18 Bastian B. Brandt , Anthony Francis , Tim Harris , Harvey B. Meyer , Aman Steinberg

This paper presents a brief review of the interpretation of measurements of hadron yields in hadronic interactions within the framework of thermal models, over a broad energy range (from SIS to LHC energies, $\sqrt{s_{NN}} \simeq$ 2.5 GeV…

核实验 · 物理学 2014-10-03 Michele Floris
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