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Related papers: Revisting Lepton Pairs at the SPS

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Recent progress in full jet reconstruction in heavy-ion collisions at RHIC makes it a promising tool for the quantitative study of the QCD at high energy density. Measurements in d+Au collisions are important to disentangle initial state…

Nuclear Experiment · Physics 2019-08-13 Jan Kapitan

The first measurement of pseudorapidity and azimuthal angle distributions relative to the momentum vector of a Z boson for low transverse momentum ($p_\mathrm{T}$) charged hadrons in lead-lead (PbPb) collisions is presented. By studying the…

Nuclear Experiment · Physics 2026-02-24 CMS Collaboration

In relativistic heavy-ion collisions, the quark-gluon plasma is created, and as the medium cools down, the system transitions into a hadronic phase. While such interactions are well established for large systems, such as Pb-Pb collisions,…

Nuclear Theory · Physics 2025-10-27 Su-Jeong Ji , Gyeongbin Park , Bong-Hwi Lim , Sanghoon Lim

The production and the observability of $\Lambda(1520)$, $K^0(892)$ $\Phi$ and $\Delta(1232)$ hadron resonances in central Pb+Pb collisions at 160 AGeV is addressed. The rescattering probabilities of the resonance decay products in the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Marcus Bleicher , Jörg Aichelin

Leptons do not interact strongly with the hot dense medium created in relativistic heavy ion collisions. They can escape the interaction region undistorted and thus carry direct information about the space-time evolution of the expanding…

High Energy Physics - Experiment · Physics 2019-08-13 Yi Guo

Data on hadron production at high transverse momentum ($p_T>$ 2 GeV/$c$) in p+p, d+Au, and Au+Au collisions at $\sqrt{s_{NN}$ = 200 GeV from the PHENIX experiment at RHIC are reviewed. The single inclusive spectrum of light hadrons produced…

Nuclear Experiment · Physics 2007-05-23 David d'Enterria

Dileptons produced during heavy-ion collisions represent a unique probe of the QCD phase diagram, and convey information about the state of the strongly interacting system at the moment their preceding off-shell photon is created. In this…

Nuclear Theory · Physics 2024-05-08 Jessica Churchill , Lipei Du , Charles Gale , Greg Jackson , Sangyong Jeon

We study thermal dilepton production and anisotropic flow in Pb+Pb collisions at $\sqrt{s_{NN}} = 5.02 \, \mathrm{TeV}$ using next-to-leading-order (NLO) thermal QCD dilepton emission rates. A hybrid model (IP-Glasma+\kompost+MUSIC+UrQMD)…

Nuclear Theory · Physics 2025-05-01 Xiang-Yu Wu , Lipei Du , Charles Gale , Sangyong Jeon

Yields and spectra of $\Sigma(1385)$ are measured in $p+p$, d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV . The nuclear modification factors in d+Au collisions are presented. The $p_{T}$ dependent medium effects are investigated via…

Nuclear Experiment · Physics 2009-11-11 Sevil Salur

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.

High Energy Physics - Phenomenology · Physics 2009-09-29 B. Kampfer , J. Cleymans , K. Gallmeister , S. Wheaton

Suppression measurements for charged hadrons are used to investigate the path length (L) and transverse momentum (p_T) dependent jet quenching patterns of the hot and dense QCD medium produced in Pb+Pb collisions at Root_s =2.76 TeV at the…

Nuclear Experiment · Physics 2012-02-27 Roy A. Lacey , N. N. Ajitanand , J. M. Alexander , J. Jia , A. Taranenko

Dilepton production in In+In collisions at 158 AGeV is studied within the microscopic parton-hadron-string dynamics (PHSD) transport approach that incorporates explicit partonic degrees-of-freedom, dynamical hadronization as well as the…

Nuclear Theory · Physics 2015-05-28 O. Linnyk , E. L. Bratkovskaya , V. Ozvenchuk , W. Cassing , C. M. Ko

We analyze the contribution of pQCD based semi-hard parton (re)scattering to the reaction dynamics of relativistic heavy-ion collisions at SPS and RHIC. While such processes are able to account for the measured yield of high momentum direct…

Nuclear Theory · Physics 2009-11-07 Steffen A. Bass , Berndt Müller , Dinesh K. Srivastava

We address dilepton production in Au+Au collisions at sqrt(s_NN)=200 GeV by employing the parton-hadron-string dynamics (PHSD) off-shell transport approach. Within the PHSD one goes beyond the quasiparticle approximation by solving…

Nuclear Theory · Physics 2015-06-03 O. Linnyk , W. Cassing , J. Manninen , E. L. Bratkovskaya , C. M. Ko

The behavior of hadronic matter at high baryon densities is studied within Ultrarelativistic Quantum Molecular Dynamics (URQMD). Baryonic stopping is observed for Au+Au collisions from SIS up to SPS energies. The excitation function of flow…

The STAR Collaboration presents new measurements of inclusive charged hadron distributions for $p_{T} <$ 12 GeV/c from Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. Charged hadron suppression at high $p_{T}$ is similar in shape and…

Nuclear Experiment · Physics 2014-11-18 Jennifer L. Klay

Due to their penetrating nature, electromagnetic probes, i.e., lepton-antilepton pairs (dileptons) and photons are unique tools to gain insight into the nature of the hot and dense medium of strongly-interacting particles created in…

High Energy Physics - Phenomenology · Physics 2015-06-23 H. van Hees , J. Weil , S. Endres , M. Bleicher

The vector $U$-bosons, or so called 'dark photons', are one of the possible candidates for the dark matter mediators. We present a procedure to derive theoretical constraints on the upper limit of kinetic mixing parameter $\epsilon^2(M_U)$…

High Energy Physics - Phenomenology · Physics 2024-10-01 Adrian William Romero Jorge , Elena Bratkovskaya , Laura Sagunski

The observed suppression of high-$p_T$ hadron spectra, finite azimuthal anisotropy, disappearance of jet-like back-to-back correlations, and their centrality dependence in $Au+Au$ collisions at RHIC are shown to be quantitatively described…

Nuclear Theory · Physics 2008-11-26 Xin-Nian Wang

Dileptons are considered as one of the cleanest signals of the quark-gluon plasma (QGP), however, the QGP radiation is masked by many 'background' sources from either hadronic decays or semileptonic decays from correlated charm pairs. In…

Nuclear Theory · Physics 2018-06-20 Taesoo Song , Wolfgang Cassing , Pierre Moreau , Elena Bratkovskaya
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