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We report on the measurement of angular coefficients and the forward and backward asymmetry ($A_{fb}$) of Drell-Yan dielectron pairs from $p\bar{p}$ collision at $\sqrt{s}$ = 1.96 TeV. The angular distributions are studied as a function of…

High Energy Physics - Experiment · Physics 2015-03-19 Jiyeon Han

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

We compute cross sections for the Drell-Yan process in nuclear collisions at next-to-leading order (NLO) in \alpha_s. The effects of shadowing on the normalization and on the mass and rapidity dependence of these cross sections are…

High Energy Physics - Phenomenology · Physics 2009-11-07 K. J. Eskola , V. J. Kolhinen , P. V. Ruuskanen , R. L. Thews

The effects of parton energy loss in cold nuclear matter on heavy-quarkonium suppression in p-A collisions are studied. It is shown from first principles that at large quarkonium energy E and small production angle in the nucleus rest…

High Energy Physics - Phenomenology · Physics 2015-06-12 François Arleo , Stéphane Peigné

In the kinematical region where the center of mass energy is much larger than all other scales, the Drell-Yan process can be formulated in the target rest frame in terms of the same color dipole cross section as low Bjorken-x deep inelastic…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. Raufeisen , J. -C. Peng , G. C. Nayak

High-energy neutral and charged Drell--Yan differential cross-section measurements are powerful probes of quark-lepton contact interactions that produce growing-with-energy effects. This paper provides theoretical predictions of the new…

High Energy Physics - Phenomenology · Physics 2021-03-03 Lorenzo Ricci , Riccardo Torre , Andrea Wulzer

The energy loss of fast partons traversing the strongly interacting matter produced in high-energy nuclear collisions is one of the most interesting observables to probe the nature of the produced medium. The multipurpose Compact Muon…

Nuclear Experiment · Physics 2019-08-14 Christof Roland

We show that the initial-state interactions from gluon exchange between the incoming quark and the target spectator system lead to leading-twist single-spin asymmetries in the Drell-Yan process. The QCD initial-state interactions produce a…

High Energy Physics - Phenomenology · Physics 2009-09-11 Stanley J. Brodsky , Dae Sung Hwang , Ivan Schmidt

We discuss the Drell-Yan production of dileptons at high energies in the forward rapidity region of proton-proton collisions in a hybrid high-energy approach. This approach uses unintegrated gluon distributions in one proton and collinear…

High Energy Physics - Phenomenology · Physics 2016-10-18 Wolfgang Schäfer , Antoni Szczurek

We present a measurement of the Drell-Yan cross section at high dielectron invariant mass using 120/pb of data collected in pbar-p collisions at sqrt(s) = 1.8 TeV by the D0 collaboration during 1992-96. No deviation from standard model…

High Energy Physics - Experiment · Physics 2016-08-31 B. Abbott

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

The forward-backward asymmetry in Drell-Yan production and the effective leptonic electroweak mixing angle are measured in proton-proton collisions at $\sqrt{s}$ = 13 TeV, collected by the CMS experiment and corresponding to an integrated…

High Energy Physics - Experiment · Physics 2025-05-22 CMS Collaboration

$J/\psi$ suppression in p-A collisions is studied by considering the nuclear effects on parton distribution, energy loss of beam proton and the finial state energy loss of color octet $c\overline{c}$. The leading-order computations for…

High Energy Physics - Phenomenology · Physics 2015-06-25 Li-Hua Song , Wen-Dan Miao , Chun-Gui Duan

We present the full next-to-next-to-leading order (NNLO) corrections to the coefficient function for the polarized cross section $d \Delta\sigma/d Q$ of the Drell-Yan process. We study the effect of these corrections on the process $p+p\to…

High Energy Physics - Phenomenology · Physics 2009-11-10 V. Ravindran , J. Smith , W. L. van Neerven

We predict the triple differential cross section of the unpolarized Drell-Yan process at sqrt(S)=6 GeV. The model incorporates primordial parton transverse momentum and quark off-shellness effects caused by the initial state interaction.

High Energy Physics - Phenomenology · Physics 2009-11-11 O. Linnyk , S. Leupold , U. Mosel

The effect of medium-induced parton energy loss on jet fragmentation is studied in high-energy heavy-ion collisions. It is shown that an effective jet fragmentation function can be extracted from the inclusive $p_T$ spectrum of charged…

High Energy Physics - Phenomenology · Physics 2008-11-26 Xin-Nian Wang , Zheng Huang

We analyze the transverse momentum ($p_{T}$) spectra of lepton pairs ($\ell\bar \ell$) generated in the Drell-Yan process, as detected in proton-nucleus (pion-nucleus) and proton-(anti)proton collisions by ten collaborations over a…

High Energy Physics - Phenomenology · Physics 2021-06-02 Xu-Hong Zhang , Fu-Hu Liu

In this paper we study the transverse energy spectrum for the Drell-Yan process. The transverse energy is measured within the central region defined by a (pseudo-) rapidity cutoff. Soft-collinear effective theory (SCET) is used to factorize…

High Energy Physics - Phenomenology · Physics 2018-09-25 Daekyoung Kang , Yiannis Makris , Thomas Mehen

The study of inclusive charged-particle production in heavy-ion collisions provides insights into the density of the medium and the energy-loss mechanisms. The observed suppression of high-$\textit{p}_\text{T}$ yield is generally attributed…

Nuclear Experiment · Physics 2016-09-26 Julius Gronefeld

Understanding the behavior of large atomic nuclei (heavy ions) in high-energy collisions has been the focus of a concerted research effort over the past 10-15 years, with a recent focus on transverse momentum-dependent (or "unintegrated")…

High Energy Physics - Phenomenology · Physics 2014-09-30 David Zaslavsky