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相关论文: Saturation and shadowing in high-energy proton-nuc…

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We study for the first time the transverse momentum transfer distributions $d\sigma/dt$ in coherent production of charmonia in nuclear ultra-peripheral and electron-ion collisions within the QCD color dipole approach based on a rigorous…

高能物理 - 唯象学 · 物理学 2025-11-06 J. Nemchik , J. Óbertová

We discuss photon-photon fusion mechanisms of dilepton production in proton-proton collisions with rapidity gap in the main detector and one forward proton in the forward proton detectors. This is relevant for the LHC measurements by…

高能物理 - 唯象学 · 物理学 2021-07-29 Antoni Szczurek , Barbara Linek , Marta Luszczak

New scaling structure for the shadow corrections in elastic scattering from deuteron at high energies has been presented and discussed. It is shown that this structure corresponds to the experimental data on proton(antiproton)-deuteron…

高能物理 - 唯象学 · 物理学 2009-10-31 A. A. Arkhipov

We argue that semi-inclusive photo-production of a pair of hard jets via coherent diffraction in nucleus-nucleus ultra-peripheral collisions at high energy is a golden channel to study gluon saturation. The dominant contribution is the…

高能物理 - 唯象学 · 物理学 2023-04-26 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos , S. Y. Wei

Shadowing is a quantum phenomenon leading to a non-additivity of electroweak cross sections on nucleons bound in a nucleus. It occurs due to destructive interference of amplitudes on different nucleons. Although the current experimental…

高能物理 - 唯象学 · 物理学 2012-11-26 B. Z. Kopeliovich , J. G. Morfin , Ivan Schmidt

Proton-proton total and elastic cross sections are considered in the Dakhno-Nikonov eikonal model [L.G. Dakhno, V.A. Nikonov, Eur. Phys. J. A8, 209 (1999)] at ultra-high energies. The model takes into account the quark structure of hadrons…

高能物理 - 唯象学 · 物理学 2013-06-24 V. V. Anisovich , K. V. Nikonov , V. A. Nikonov

Starting from a realistic one--boson--exchange--model fitted to the amplitudes of elastic nucleon--nucleon scattering and the process $NN\rightarrow N\Delta$ we perform a fully relativistic and gauge invariant calculation for the dilepton…

核理论 · 物理学 2009-10-28 M. Schäfer , H. C. Dönges , A. Engel , U. Mosel

We argue that measurements of forward neutrons from nuclear breakup in inclusive high energy photon-nucleus ($\gamma A$) scattering provide a novel way to study small-$x$ dynamics of QCD in heavy-ion ultraperipheral collisions (UPCs). Using…

高能物理 - 唯象学 · 物理学 2024-07-03 M. Alvioli , V. Guzey , M. Strikman

Leading neutron production on protons is known to be subject to strong absorptive corrections, which have been under debate for a long time. On nuclear targets these corrections are significantly enhanced and push the partial cross sections…

核理论 · 物理学 2017-04-05 B. Z. Kopeliovich , I. K. Potashnikova , Ivan Schmidt

We describe the origin of, and the solution to, the negativity problem which occurs in the perturbative calculation of the cross-section for single-inclusive particle production in proton-nucleus collisions at next-to-leading-order.

高能物理 - 唯象学 · 物理学 2018-03-14 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos

We calculate the energy dependence of inclusive and diffractive neutrino-nucleus deep-inelastic scattering cross sections within the dipole picture, focusing on the ultra-high-energy regime. We predict an up to $\sim 10\%$ nuclear…

高能物理 - 唯象学 · 物理学 2024-09-26 Anh Dung Le , Heikki Mäntysaari

Dilepton production in proton- and nucleus-induced reactions is studied in relativistic transport model using initial conditions determined by the string dynamics from RQMD. It is found that both the CERES and HELIOS-3 data for dilepton…

核理论 · 物理学 2015-06-26 G. Q. Li , C. M. Ko , G. E. Brown , H. Sorge

Nuclear shadowing corrections to the structure functions of deep inelastic scattering of intermediate-mass nuclei are calculated at very low values of Bjorken x and small values of Q^2 (Q^2<5 GeV^2). The two-component approach (generalized…

高能物理 - 唯象学 · 物理学 2015-12-16 Edgar V. Bugaev , Boris V. Mangazeev

We study how much gluon shadowing can be perturbatively generated through the modified QCD evolution in heavy nuclei. The evolution of small-$x$ gluons is investigated within the semiclassical approximation. The method of characteristics is…

核理论 · 物理学 2010-11-01 K. J. Eskola , Jianwei Qiu , Xin-Nian Wang

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…

高能物理 - 唯象学 · 物理学 2007-05-23 K. Gallmeister , B. Kaempfer , O. P. Pavlenko

Inclusive electron scattering off few-nucleon systems is investigated at $x>1$ and high momentum transfer, including the contributions from quasi-elastic and deep inelastic scattering processes. It is shown that at $x>1$ the inclusive cross…

核理论 · 物理学 2011-04-15 S. Simula

We calculate cross sections for inclusive dijet photoproduction in electron-nucleus scattering in the kinematics of the future EIC and the possible LHeC, HE-LHeC, and the FCC using next-to-leading order (NLO) perturbative QCD and nCTEQ15…

高能物理 - 唯象学 · 物理学 2021-01-04 V. Guzey , M. Klasen

We calculate the nuclear inclusive and diffractive cross sections for heavy quark photoproduction within a phenomenological saturation approach. The nuclear cross section is obtained by the extension of the saturation model through…

高能物理 - 唯象学 · 物理学 2011-01-25 V. P. Goncalves , M. V. T. Machado

High-energy nucleon total cross sections are related to low-x DIS structure functions by using the additive quark model.

高能物理 - 唯象学 · 物理学 2016-11-23 Francesco Giovanni Celiberto , Laszlo Jenkovszky , Volodymyr Myronenko

This review outlines our present experimental knowledge and theoretical understanding of deep-inelastic scattering on nuclear targets. The emphasis is primarily on nuclear coherence phenomena, such as shadowing, where the key physics issue…

高能物理 - 唯象学 · 物理学 2009-10-31 Gunther Piller , Wolfram Weise