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相关论文: Quark energy loss and shadowing in nuclear Drell-Y…

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We revisit the calculation of multiple parton scattering of a heavy quark in nuclei within the framework of recently improved high-twist factorization formalism, in which gauge invariance is ensured by a delicate setup of the initial…

高能物理 - 唯象学 · 物理学 2018-09-18 Yi-Lun Du , Yayun He , Xin-Nian Wang , Hongxi Xing , Hong-Shi Zong

The energy loss effect of incoming gluon from $J/\psi$ production in p-A (or d-A) collisions is investigated by means of the E866, RHIC and LHC experimental data. The gluon mean energy loss per unit path length $dE/dL = 2.18\pm0.14$ GeV/fm…

高能物理 - 唯象学 · 物理学 2016-11-28 Li-Hua Song , Lin-Wan Yan , 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…

高能物理 - 唯象学 · 物理学 2009-11-10 V. Ravindran , J. Smith , W. L. van Neerven

Parton propagation in dense nuclear matter results in elastic, inelastic and coherent multiple soft scattering with the in-medium color charges. Such scattering leads to calculable modifications of the hadron production cross section that…

高能物理 - 唯象学 · 物理学 2015-06-25 Ivan Vitev

Knowing whether a hadron is formed inside or outside the nuclear medium is very important for correctly interpreting jet quenching in heavy-ion collisions. The cleanest experimental environment to study the space-time evolution of…

核理论 · 物理学 2007-05-23 Alberto Accardi

The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavy-ion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense matter. It has been…

高能物理 - 唯象学 · 物理学 2007-05-23 M. B. Gay Ducati , V. P. Goncalves , L. F. Mackedanz

We calculate radiative and collisional energy loss of hard partons traversing the quark-gluon plasma created at RHIC and compare the respective size of these contributions. We employ the AMY formalism for radiative energy loss and include…

高能物理 - 唯象学 · 物理学 2011-07-26 G. Y. Qin , J. Ruppert , C. Gale , S. Jeon , G. D. Moore , M. G. Mustafa

We use the Drell-Yan differential distribution dN_{DY}^{AB}/dE_T in high-energy nucleus-nucleus collisions to obtain a relation between the transverse energy E_T and the impact parameter b. Such a relation is then utilized to study the…

高能物理 - 唯象学 · 物理学 2007-05-23 Cheuk-Yin Wong

Data from E772 and E866 experiments on the Drell-Yan process exhibit a significant nuclear suppression at large Feynman xF. We show that a corresponding kinematic region does not allow to interpret this as a manifestation of coherence or a…

高能物理 - 唯象学 · 物理学 2015-05-20 J. Cepila , J. Nemchik

We investigate how Drell-Yan processes can be used to measure the magnitude of flavor symmetry violation in the proton sea. We examine the utility of the following beams: protons, charged pions, and charged kaons. In each case we present an…

高能物理 - 唯象学 · 物理学 2009-10-30 R. S. Bhalerao , J. T. Londergan

Within a nuclear model that the deuteron has NN and \pi NN components, we derive convolution formula for investigating the Drell-Yan process in proton-deuteron (pd) reactions. The contribution from the \pi NN component is expressed in terms…

高能物理 - 唯象学 · 物理学 2012-11-28 H. Kamano , T. -S. H. Lee

Considerable evidence now exists for partonic energy loss due to interaction with the hot, dense medium created in ultra-relativistic heavy-ion collisions. A primary signal of this energy loss is the suppression of high transverse momentum…

核理论 · 物理学 2026-04-10 Ian Gill , Ryan J. Hamilton , Helen Caines

We perform a global analysis of Drell-Yan production of charged leptons and dineutrinos, the latter in missing energy plus jet events, in proton-proton collisions within the Standard Model Effective Field Theory (SMEFT). The combination…

高能物理 - 唯象学 · 物理学 2025-05-29 Gudrun Hiller , Lara Nollen , Daniel Wendler

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…

高能物理 - 唯象学 · 物理学 2021-03-03 Lorenzo Ricci , Riccardo Torre , Andrea Wulzer

The suppression of hadron p_T spectra in high energy central heavy-ion collisions compared to proton-proton collisions, referred to as 'jet-quenching', is currently attributed to partonic energy loss in the hot medium created in the…

高能物理 - 唯象学 · 物理学 2008-11-26 Stephane Peigne

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…

高能物理 - 唯象学 · 物理学 2008-11-26 Xin-Nian Wang , Zheng Huang

Dynamical screening in the magnetic part of the one-gluon exchange interaction is included in the study of radiative energy loss of a fast parton propagating inside a quark-gluon plasma. As a result the final radiative energy loss is about…

核理论 · 物理学 2014-11-18 Xin-Nian Wang

At high energies the saturation effects associated to the high parton density should modify the behavior of the observables in proton-nucleus and nucleus-nucleus scattering. In this paper we investigate the saturation effects in the nuclear…

高能物理 - 唯象学 · 物理学 2009-11-10 M. B. Gay Ducati , V. P. Goncalves , L. F. Mackedanz

We study the production and evolution of charm and bottom quarks in hot partonic medium produced in heavy ion collisions. The heavy quarks loose energy in the medium which is reflected in the transverse momentum spectra of heavy mesons. The…

高能物理 - 唯象学 · 物理学 2017-04-05 Kapil Saraswat , Prashant Shukla , Vineet Kumar , Venktesh Singh

A hybrid model is used to describe the energy loss of very high-energy taus and muons in matter due to inelastic scattering on nuclei. The model involves soft and semihard photonuclear interactions as well as the deep inelastic scattering…

高能物理 - 唯象学 · 物理学 2007-05-23 A. A. Kochanov , K. S. Lokhtin , S. I. Sinegovsky
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