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相关论文: Electromagnetic Signals and Backgrounds in Heavy-I…

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We study the spectrum of light baryons and hyperons as a function of temperature using lattice gauge theory methods. We find that masses of positive parity states are temperature independent, within errors, in the hadronic phase. The…

高能物理 - 格点 · 物理学 2019-11-06 Gert Aarts , Chris Allton , Davide de Boni , Jonas Glesaaen , Simon Hands , Benjamin Jäger , Jon-Ivar Skullerud

We predict dilepton invariant-mass spectra for central 5.5 ATeV Pb-Pb collisions at LHC. Hadronic emission in the low-mass region is calculated using in-medium spectral functions of light vector mesons within hadronic many-body theory. In…

高能物理 - 唯象学 · 物理学 2008-04-22 H. van Hees , R. Rapp

Electromagnetic probes are ideally suited to investigate hot and dense matter produced in high energy heavy ion collisions. They do not undergo strong interactions and thus probe the time evolution of the collision. The dielectron continuum…

核实验 · 物理学 2015-06-26 Alberica Toia

The theory of thermal photon and dilepton emission from a hot and dense hadronic gas, as well as from the Quark-Gluon Plasma, is reviewed in the context of extracting in-medium properties of the matter constituents. In phenomenological…

核理论 · 物理学 2022-02-23 Ralf Rapp

We develop a complete and consistent description for the hadron spectra from heavy ion collisions in terms of a few collective variables, in particular temperature, longitudinal and transverse flow. To achieve a meaningful comparison with…

核理论 · 物理学 2008-11-26 Ekkard Schnedermann , Josef Sollfrank , Ulrich Heinz

In the past few years a wealth of high quality data has made possible to test current theoretical ideas about the properties of hadrons subject to extreme conditions of density and temperature. The relativistic heavy-ion program carried out…

高能物理 - 唯象学 · 物理学 2016-11-23 Alejandro Ayala

An introductory overview of electromagnetic probes in ultra-relativistic heavy-ion collisions is provided. Experimental evidence supporting the production of thermal photons and dileptons in heavy-ion collisions at the Relativistic Heavy…

核理论 · 物理学 2017-05-24 Jean-François Paquet

The photon spectra measured by the ALICE collaboration in Pb+Pb collisions at Large Hadron Collider (LHC) energies has been analyzed with a view of extracting the properties of thermal system formed in these collisions. The results of the…

核理论 · 物理学 2013-03-05 Sukanya Mitra , Payal Mohanty , Sabyasachi Ghosh , Sourav Sarkar , Jan-e Alam

High-energy heavy-ion collisions provide a unique opportunity to study the properties of the hot and dense strongly-interacting system composed of deconfined quarks and gluons -- the quark-gluon plasma (QGP) -- in laboratory conditions. The…

高能物理 - 实验 · 物理学 2018-08-07 Mateusz Ploskon

We discuss how dileptons, open charm and charmonia may be utilized in heavy-ion collisions to extract information specific to hot and dense matter at finite quark chemical potential, $\mu_q$. For each observable we briefly discuss…

高能物理 - 唯象学 · 物理学 2014-11-20 Ralf Rapp

Using a Hagedorn resonance gas picture and quark-hadron duality we estimate the dilepton emission rate in the vicinity of the QCD deconfinement phase transition. The result is then used to calculate a dilepton spectrum in ultrarelativistic…

高能物理 - 唯象学 · 物理学 2011-09-13 A. V. Leonidov , P. V. Ruuskanen

We analyze the centrality dependence of thermal parameters describing hadron multiplicities, hadron spectra and dilepton spectra in heavy-ion collisions at SPS and RHIC energies.

高能物理 - 唯象学 · 物理学 2009-09-29 B. Kampfer , J. Cleymans , K. Gallmeister , S. Wheaton

Systematic investigations of dilepton production are performed at the SIS accelerator of GSI with the HADES spectrometer. The goal of this program is a detailed understanding of di-electron emission from hadronic systems at moderate…

I summarize recent lattice results on QCD at finite temperatures and densities. Studies on the nature of the QCD transition at the physical point, continuum extra polations of thermodynamic quantities, and new calculations of hadronic…

高能物理 - 唯象学 · 物理学 2009-11-07 Kazuyuki Kanaya

These proceedings present a brief overview of the main results on jet-modifications in heavy ion collisions at RHIC. In heavy ion collisions, jets are studied using single hadron spectra and di-hadron correlations with a high-\pt{} trigger…

核实验 · 物理学 2008-08-07 M. van Leeuwen

Previous dilepton measurements in heavy-ion collisions have mainly focused on invariant mass spectra to clarify in-medium changes of vector meson properties. However, a dimuon is characterized by two scales -- invariant mass $M$ and…

高能物理 - 唯象学 · 物理学 2008-11-26 Thorsten Renk , Jorg Ruppert

We first review the calculations of low invariant mass dilepton production in relativistic heavy ion collisions, using effective hadronic Lagrangians. We go through some of the theoretical techniques used in this kinematical region and we…

核理论 · 物理学 2008-02-03 Charles Gale

Relativistic heavy-ion collisions produce a hot and dense thermalized medium, that is expected to emit thermal radiation in form of dileptons. These dileptons are not affected by the strong force and are therefore a clean probe for the…

高能物理 - 唯象学 · 物理学 2013-06-03 Thomas Lang , Hendrik van Hees , Jan Steinheimer , Marcus Bleicher

A search for high-mass dielectron and dimuon resonances in the mass range of 250 GeV to 6 TeV is presented. The data were recorded by the ATLAS experiment in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=$13 TeV during…

高能物理 - 实验 · 物理学 2019-10-22 ATLAS Collaboration

The current status of evaluating thermal production of lepton pairs in high-energy collisions of heavy nuclei is discussed. After a brief survey of emission rates from hot and dense matter, we address applications to (and interpretations…

核理论 · 物理学 2007-05-23 R. Rapp