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Related papers: Thermal Dileptons as Fireball Thermometer and Chro…

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Some questions arising in the application of the thermal model to hadron production in heavy ion collisions are studied. We do so by applying the thermal model of hadron production to particle yields calculated by the microscopic transport…

Nuclear Theory · Physics 2009-10-09 J. Sollfrank , U. Heinz , H. Sorge , N. Xu

NLO and LPM-resummed computations of thermal dilepton production from a hot QCD plasma are reviewed. An interpolation applicable for all positive photon invariant masses is presented, and possibilities for comparisons with lattice and…

High Energy Physics - Phenomenology · Physics 2015-02-23 M. Laine

We study the prospects to get information about the early and hot stages of deconfined matter produced in relativistic heavy-ion collisions by analyzing dilepton and single-lepton spectra. Energy losses of heavy quarks in deconfined matter…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Gallmeister , B. Kaempfer , O. P. Pavlenko

By measuring hadronic single-particle spectra and two-particle correlations in heavy-ion collisions, the size and dynamical state of the collision fireball at freeze-out can be reconstructed. I discuss the relevant theoretical methods and…

Nuclear Theory · Physics 2007-05-23 Ulrich Heinz

Theoretical calculation of transverse momentum($p_T$) distribution of thermal photons and dileptons originating from ultra-relativistic heavy ion collisions suffer from several uncertainties since the evaluation of these spectra needs…

Nuclear Theory · Physics 2008-11-26 Jajati K. Nayak , Jan-e Alam , Sourav Sarkar , Bikash Sinha

The paper contains a description of a first attempt to understand the extremely inelastic high energy hadron collisions, when the multiplicity of produced hadrons considerably exceeds its mean value. Problems with existing model predictions…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. Manjavidze , A. Sissakian

Photons are a penetrating probe of the hot medium formed in heavy-ion collisions, but they are emitted from all collision stages. At photon energies below 2-3 GeV, the measured photon spectra are approximately exponential and can be…

Nuclear Theory · Physics 2014-05-02 Chun Shen , Ulrich W. Heinz , Jean-Francois Paquet , Charles Gale

We perform a study of electromagnetic radiation in heavy-ion collisions at Relativistic Heavy Ion Collider (RHIC) Beam Energy Scan (BES) and SPS energies using the iEBE-MUSIC framework, which includes 3D dynamical Monte Carlo Glauber…

Nuclear Theory · Physics 2025-11-13 Xiang-Yu Wu , Charles Gale , Sangyong Jeon , Jean-François Paquet , Björn Schenke , Chun Shen

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…

High Energy Physics - Experiment · Physics 2018-08-07 Mateusz Ploskon

Electromagnetic probes are a unique tool for studying the space-time evolution of the hot and dense matter created in ultra-relativistic heavy-ion collisions. Dielectrons are emitted during the entire evolution of the medium created in such…

Nuclear Experiment · Physics 2025-05-07 Jerome Jung

Thermal models are commonly used to interpret heavy-ion data on particle yields and spectra and to extract the conditions of chemical and thermal freeze-out in heavy-ion collisions. I discuss the usefulness and limitations of such thermal…

Nuclear Theory · Physics 2008-11-26 Ulrich Heinz

The recent status of hard thermal photon production in relativistic heavy ion collisions is reviewed and the current rates are presented with emphasis on corrected bremsstrahlung processes in the quark-gluon plasma (QGP) and quark-hadron…

High Energy Physics - Phenomenology · Physics 2008-11-26 Frank D. Steffen , Markus H. Thoma

A unique parametrization of secondary (thermal) dilepton yields in heavy-ion experiments at CERN-SPS is proposed. This parametrization resembles a thermal $q \bar q$ annihilation rate. This is inspired by the observation that lepton pair…

High Energy Physics - Phenomenology · Physics 2009-09-25 K. Gallmeister , B. Kämpfer , O. P. Pavlenko , C. Gale

The ratio of transverse momentum distribution of thermal photons to dilepton has been evaluated. It is observed that this ratio reaches a plateau beyond a certain value of transverse momentum. We argue that this ratio can be used to…

Nuclear Theory · Physics 2009-02-03 Jajati K. Nayak , Jane Alam , Sourav Sarkar , Bikash Sinha

We demonstrate that both quark-gluon plasma (QGP) and hadronic gas (HG) models of the central fireball created in S -> W collisions at 200 GeV A are possible sources of the recently observed strange (anti-) baryons. From the theoretical…

High Energy Physics - Phenomenology · Physics 2010-11-01 Jean Letessier , Johann Rafelski , Ahmed Tounsi

We review the production of lepton pairs during high energy nuclear collisions. We highlight the information being carried out of the hot and dense strongly interacting medium. We describe the phenomenon of scalar-vector mixing that can…

High Energy Physics - Phenomenology · Physics 2007-05-23 Charles Gale

Starting from IP-Glasma initial conditions, we investigate the effects of bulk pressure on thermal dilepton production at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) energies. Though results of the thermal…

We propose intensity interferometry with identical lepton pairs as an efficient tool for the estimation of the source size of the expanding hot zone produced in relativistic heavy ion collisions. This can act as a complementary method to…

Nuclear Theory · Physics 2009-11-10 Jan-e Alam , Bedangadas Mohanty , A. Rahaman , Sourav Sarkar , Bikash Sinha

It is shown that hadron abundances in high energy e+e-, pp and p{\bar p} collisions, calculated by assuming that particles originate in hadron gas fireballs at thermal and partial chemical equilibrium, are in very good agreement with the…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Becattini

Because of their weak interactions with the strongly interacting matter produced in relativistic heavy-ion collisions, dileptons provide an ideal probe of the early dynamics of these collisions. Here, we study dilepton production using a…

Nuclear Theory · Physics 2024-12-30 Wen-Hao Zhou , Che Ming Ko , Kai-Jia Sun