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We study a significant nuclear suppression of the relative production rates (p(d)+A)/(p+d(p)) for the Drell-Yan process at large Feynman xF. Since this is the region of minimal values for the light-front momentum fraction variable x2 in the…

High Energy Physics - Phenomenology · Physics 2010-04-22 J. Cepila , J. Nemchik

We present an universal treatment for a substantial nuclear suppression representing a common feature of all known reactions on nuclear targets (forward production of high-pT hadrons, production of direct photons, the Drell-Yan process,…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Nemchik , I. K. Potashnikova

We study a strong suppression of the relative production rate (d-Au)/(p-p) for inclusive high-pT hadrons of different species at large forward rapidities (large Feynman xF). The model predictions calculated in the light-cone dipole approach…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Nemchik , V. Petracek , I. K. Potashnikova , M. Sumbera

We calculate the differential Drell-Yan production cross section in proton-nucleus collisions by including both next-to-leading order perturbative effects and effects of the nuclear medium. We demonstrate that dilepton production in fixed…

High Energy Physics - Phenomenology · Physics 2015-05-20 R. B. Neufeld , I. Vitev , B. W. Zhang

In this work, we investigate production of Drell-Yan (DY) pairs in proton-nucleus collisions in kinematic regions where the corresponding coherence length does not exceed the nuclear radius, $R_A$, and the quantum coherence effects should…

High Energy Physics - Phenomenology · Physics 2016-12-21 Victor P. Goncalves , Michal Krelina , Jan Nemchik , Roman Pasechnik

The Drell-Yan (DY) process of dilepton pair production off nuclei is not affected by final state interactions, energy loss or absorption. A detailed phenomenological study of this process is thus convenient for investigation of the onset of…

High Energy Physics - Phenomenology · Physics 2016-06-01 Eduardo Basso , Victor P. Goncalves , Michal Krelina , Jan Nemchik , Roman Pasechnik

We study Drell-Yan (DY) dilepton production in proton(deuterium)-nucleus and in nucleus-nucleus collisions within the light-cone color dipole formalism. This approach is especially suitable for predicting nuclear effects in the DY cross…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Z. Kopeliovich , J. Raufeisen , A. V. Tarasov , M. B. Johnson

In the target rest frame and at high energies, Drell-Yan (DY) dilepton production looks like bremsstrahlung of massive photons, rather than parton annihilation. The projectile quark is decomposed into a series of Fock states. Configurations…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. Raufeisen

Recent measurements by the BRAHMS collaboration of high-pT hadron production at forward rapidities at RHIC found the relative production rate(d-Au)/(p-p) to be suppressed, rather than enhanced. Examining other known reactions (forward…

High Energy Physics - Phenomenology · Physics 2009-11-11 B. Z. Kopeliovich , J. Nemchik , I. K. Potashnikova , M. B. Johnson , Ivan Schmidt

We discuss a common feature of all known reactions on nuclear targets - a significant suppression at large x. Simple interpretation of this effect is based on energy conservation restrictions in initial state parton rescatterings. Using the…

High Energy Physics - Phenomenology · Physics 2010-04-05 J. Nemchik , M. Sumbera

We present a new analysis of the E772 and E866 experiments on the nuclear dependence of Drell-Yan (DY) lepton pair production resulting from the bombardment of $^2H$, Be, C, Ca, Fe, and W targets by 800 GeV/c protons at Fermilab. We employ…

High Energy Physics - Phenomenology · Physics 2009-11-07 M. B. Johnson , B. Z. Kopeliovich , I. K. Potashnikova , P. L. McGaughey , J. M. Moss , J. C. Peng , G. Garvey , M. Leitch , C. N. Brown , D. M. Kaplan

In the target rest frame and at high energies, Drell-Yan (DY) dilepton production looks like bremsstrahlung of massive photons, rather than parton annihilation. The projectile quark is decomposed into a series of Fock states. Configurations…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. Z. Kopeliovich , J. Raufeisen , A. V. Tarasov

Various QCD tests using recent results from fixed-target dimuon production experiments at Fermilab are discussed. We emphasize that clear evidence for scaling-violation in the Drell-Yan process remains to be established. Further…

High Energy Physics - Phenomenology · Physics 2010-12-13 Jen-Chieh Peng

In this work, coherence effects in deep inelastic scattering (DIS) and in the Drell-Yan (DY) process off nuclei are investigated, in particular nuclear shadowing. The target rest frame and the color dipole formulation are employed. Multiple…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Raufeisen

The energy loss effect in nuclear matter, which is another nuclear effect apart from the nuclear effect on the parton distribution as in deep inelastic scattering process, can be measured best by the nuclear dependence of the high energy…

High Energy Physics - Phenomenology · Physics 2009-12-30 Chun-Gui Duan , Li-Hua Song , Li-Juan Huo , Guang-Lie Li

Data for Drell-Yan (DY) processes on nuclei are currently available from fixed target experiments up to the highest energy of $\sqrt{s}=40\GeV$. The bulk of the data cover the range of short coherence length, where the amplitudes of the DY…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. B. Johnson , B. Z. Kopeliovich , M. J. Leitch , P. L. McGaughey , J. M. Moss , I. K. Potashnikova , Ivan Schmidt

The strongest electromagnetic fields in nature are created in high energy nuclear collisions and expected to change the dynamic scattering processes in the early stage. The magnetic field effect on the Drell-Yan process is investigated in…

High Energy Physics - Phenomenology · Physics 2025-03-12 Shile Chen , Jiaxing Zhao , Pengfei Zhuang

We argue that the Drell-Yan process in the $x_A \ge 0.15$ kinematics recently studied at FNAL by the E906/SeaQuest experiment may allow to observe an analogous of the EMC effect for antiquarks. The effects of Fermi motion and energy loss…

High Energy Physics - Phenomenology · Physics 2023-05-17 Massimiliano Alvioli , Mark Strikman

Forward Drell-Yan production at high energy can provide important constraints on gluon densities at small $x$, in the saturation regime. In this work we focus on the nuclear modification of this process, which could be measured at the LHC…

High Energy Physics - Phenomenology · Physics 2017-11-21 B. Ducloué

The production of dileptons with an invariant mass in the range 1 GeV < M < 5 GeV provides unique insight into the approach to thermal equilibrium in ultrarelativistic nucleus-nucleus collisions. In this mass range, they are produced…

Nuclear Theory · Physics 2021-09-21 Maurice Coquet , Xiaojian Du , Jean-Yves Ollitrault , Soeren Schlichting , Michael Winn
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