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Related papers: Dileptons, Charm and Bottom in Relativistic Heavy-…

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In ultrarelativistic heavy-ion collisions at $\sqrt{s} >$ 20 (120) A$\cdot$GeV a copious production of charm (bottom) production sets in which, via correlated semileptonic $D \bar D$ ($B \bar B$) decays, gives rise to a dilepton yield at…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. Gallmeister , B. Kaempfer , O. P. Pavlenko

We analyze the opportunity to observe thermal dileptons emitted off deconfined matter resulting in heavy-ion collisions at RHIC and LHC energies. Special kinematical conditions provided by the detector systems PHENIX and ALICE, and the…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. Gallmeister , B. Kämpfer , O. P. Pavlenko

The spectra of lepton pairs from correlated open charm and bottom decays in ultrarelativistic heavy-ion collisions are calculated. Our approach includes energy loss effects of the fast heavy quarks in deconfined matter which are determined…

Nuclear Theory · Physics 2007-05-23 B. Kämpfer , O. P. Pavlenko , K. Gallmeister

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

We discuss kinematical correlations between charged leptons from semileptonic decays of open charm/bottom, leptons produced in the Drell-Yan mechanism as well as some other mechanisms not included so far in the literature in proton-proton…

High Energy Physics - Phenomenology · Physics 2011-04-04 Rafal Maciula , Antoni Szczurek , Gabriela Slipek

The spectra of lepton pairs from correlated open charm and bottom decays in ultrarelativistic heavy-ion collisions are calculated. Our approach includes energy loss effects of heavy quarks in deconfined matter which are determined by…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Kämpfer , O. P. Pavlenko , K. Gallmeister

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…

High Energy Physics - Phenomenology · Physics 2014-11-20 Ralf Rapp

Due to their penetrating nature, dileptons are a valuable probe for the properties of the hot and/or dense medium created in relativistic heavy-ion collisions. Dilepton invariant-mass spectra provide direct access to the properties of the…

Nuclear Theory · Physics 2010-02-25 H. van Hees , R. Rapp

The current status of our understanding of dilepton production in ultrarelativistic heavy-ion collisions is discussed with special emphasis on signals from the (approach towards) chirally restored and deconfined phases. In particular,…

High Energy Physics - Phenomenology · Physics 2009-11-07 R. Rapp

The dilepton invariant mass spectrum measured in heavy-ion collisions includes contributions from important QGP probes such as thermal radiation and the quarkonium ($J/\psi$, $\psi'$ and $\Upsilon$) states. Dileptons coming from hard $q…

High Energy Physics - Phenomenology · Physics 2015-06-05 V. Kumar , P. Shukla , R. Vogt

Measurements of dilepton production from charm decay and Drell-Yan processes respectively probe the gluon and sea quark distributions in hadronic collisions. In nucleus-nucleus collisions, these hard scattering processes constitute a…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Gavin , P. L. McGaughey , P. V. Ruuskanen , R. Vogt

We study the effect of energy loss on charm and bottom quarks in high-energy heavy-ion collisions including longitudinal expansion and partial thermalization. We find that high $p_\perp$ heavy quarks are greatly suppressed, and…

Nuclear Theory · Physics 2008-11-26 Ziwei Lin , Ramona Vogt , Xin-Nian Wang

Dileptons provide direct observables of the electromagnetic current-current correlator in the hot and/or dense medium formed in heavy-ion collisions. In this article an overview is given about the status of the theoretical understanding of…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. van Hees

We calculate the dilepton emissions as the decay product of the charm and bottom quarks produced in heavy-ion collisions at RHIC energy. We take into account the next-to-leading-order radiative corrections in perturbative QCD to the heavy…

High Energy Physics - Phenomenology · Physics 2008-11-26 David Fein , Zheng Huang , Peter Valerio , Ina Sarcevic

We have calculated the kinematical correlations between charged leptons from semileptonic decays of open charm/bottom as well as leptons produced in the Drell-Yan mechanism in proton-proton collisions at BNL RHIC. Presented production rates…

High Energy Physics - Phenomenology · Physics 2011-03-02 Rafal Maciula , Antoni Szczurek , Gabriela Slipek

We present a systematic survey of possible short-distance new-physics effects in (semi)leptonic charged- and neutral-current charmed meson decays. Using the Standard Model Effective Field Theory (SMEFT) to analyze the most relevant…

High Energy Physics - Phenomenology · Physics 2020-12-02 Javier Fuentes-Martin , Admir Greljo , Jorge Martin Camalich , Jose David Ruiz-Alvarez

An extensive phenomenological study of the Drell-Yan (DY) process in $pp$ collisions at various energies is performed in the color dipole framework. Besides previously studied $\gamma^*$ production we have also included the $Z^0$…

High Energy Physics - Phenomenology · Physics 2016-02-17 Eduardo Basso , Victor P. Goncalves , Jan Nemchik , Roman Pasechnik , Michal Sumbera

We discuss the emission of high momentum lepton pairs in central Au+Au collisions at RHIC ($\sqrt{s_{NN}}=$200 GeV) and Pb+Pb collisions at the LHC ($\sqrt{s_{NN}}=$5500 GeV). Yields of dileptons produced through interactions of jets with…

High Energy Physics - Phenomenology · Physics 2008-11-26 Simon Turbide , Charles Gale , Dinesh K. Srivastava , Rainer J. Fries

Aspects of the dilepton spectrum in heavy-ion collisions are discussed, with special emphasis on using lattice computations to guide the phenomenology of finite temperature hadronic matter. The background rates for continuum dileptons…

High Energy Physics - Phenomenology · Physics 2010-11-01 Sourendu Gupta

Dilepton and photon production in heavy-ion collisions at SPS energies is studied in the relativistic transport model that incorporates self-consistently the change of hadron masses in dense matter. It is found that the dilepton spectra in…

Nuclear Theory · Physics 2007-05-23 G. Q. Li , G. E. Brown , C. Gale , C. M. Ko
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