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There have been suggestions to measure atomic parity nonconservation (PNC) along an isotopic chain, by taking ratios of observables in order to cancel complicated atomic structure effects. Precise atomic PNC measurements could make a…

Nuclear Theory · Physics 2008-11-26 S. J. Pollock , E. N. Fortson , L. Wilets

We propose a simple and model-independent procedure to account for the impact of the nuclear modification of the gluon density as encoded in nuclear collinear PDF sets on two-to-two partonic hard processes in proton-nucleus collisions. This…

High Energy Physics - Phenomenology · Physics 2016-12-30 Jean-Philippe Lansberg , Hua-Sheng Shao

We predict readily experimentally measurable differences in the diffractive cross section in the coherent exclusive photoproduction of J/psi mesons in e + A collisions at eRHIC and LHeC energies for nuclear gluon distributions assumed to 1)…

High Energy Physics - Phenomenology · Physics 2011-02-25 W. A. Horowitz

Exclusive photoproduction of vector mesons in the perturbative two-gluon exchange formalism depends significantly on nucleon and nuclear gluon distributions. In the present study we calculate total cross sections and rapidity distributions…

Nuclear Theory · Physics 2015-06-15 Adeola Adeluyi , Trang Nguyen

We study the production of $J/\psi$ vector mesons as a function of charged hadron multiplicity in p+p and p+Pb collisions at LHC energies. We employ the color glass condensate framework, using running coupling Balitsky-Kovchegov evolved…

High Energy Physics - Phenomenology · Physics 2022-03-09 Farid Salazar , Björn Schenke , Alba Soto-Ontoso

In the present work the electroproduction for diffractive $\rho$ and $\phi$ mesons by considering AdS/QCD correspondence and Color Glass Condensate (CGC) approximation are studied with respect to the associated dipole cross section, whose…

Nuclear Theory · Physics 2018-04-11 G. Karapetyan

Exclusive diffractive meson production represents a golden channel for investigating gluonic saturation inside nucleons and nuclei. In this letter, we settle a systematic framework to deal with beyond leading power corrections at small-$x$,…

High Energy Physics - Phenomenology · Physics 2024-12-06 Renaud Boussarie , Michael Fucilla , Lech Szymanowski , Samuel Wallon

We consider proton-nucleus collisions at high energy in the Color Glass Condensate framework, and extract from the gluon production cross-section the probabilities of having a definite number of multiple scatterings in the nucleus. Various…

High Energy Physics - Phenomenology · Physics 2009-11-11 Nicolas Borghini , Francois Gelis

Dijet production in proton-nucleus ($p$A) collisions at the LHC provides invaluable information on the underlying parton distributions in nuclei, especially the gluon distributions. Triple-differential dijet cross sections enable a…

High Energy Physics - Phenomenology · Physics 2022-06-08 Shuwan Shen , Peng Ru , Ben-Wei Zhang

We present our work on the simulation of the early stages of heavy-ion collisions with finite longitudinal thickness in the laboratory frame in 3+1 dimensions. In particular we study the effects of nuclear thickness on the production of a…

High Energy Physics - Phenomenology · Physics 2016-07-27 Daniil Gelfand , Andreas Ipp , David Müller

We study photon-induced coherent production of Upsilon in ultraperipheral heavy ion collisions at LHC and demonstrate that the counting rates will be sufficient to measure nuclear shadowing of generalized gluon distributions. This will…

High Energy Physics - Phenomenology · Physics 2014-11-17 L. Frankfurt , V. Guzey , M. Strikman , M. Zhalov

We investigate the gluonic structure of nuclei within a mean-field model of nuclear structure based upon the modification of the structure of a bound nucleon, with the nucleon described by the Nambu--Jona-Lasinio model. This approach has…

High Energy Physics - Phenomenology · Physics 2022-02-16 Xuan-Gong Wang , Wolfgang Bentz , Ian C. Cloët , Anthony W. Thomas

The gluon distribution in nuclei plays a pivotal role in understanding quantum chromodynamics (QCD) under extreme nuclear environments, yet remains poorly constrained compared to quark distributions. Coherent \jpsi photoproduction in…

High Energy Physics - Phenomenology · Physics 2025-02-14 Pengzhong Lu , Zebo Tang , Xin Wu , Wangmei Zha

We review a broad range of phenomena in diffraction in the context of hadron-hadron, hadron-nucleus collisions and deep inelastic lepton-proton/nucleus scattering focusing on the interplay between the perturbative QCD and non-perturbative…

High Energy Physics - Phenomenology · Physics 2022-11-23 L. Frankfurt , V. Guzey , A. Stasto , M. Strikman

We perform a quantitative analysis of the nuclear modification factor in deuteron--gold collisions R(dAu) within the Color Glass Condensate approach, and compare our results with the recent data from RHIC experiments. Our model leads to…

High Energy Physics - Phenomenology · Physics 2011-01-25 Dmitri Kharzeev , Yuri V. Kovchegov , Kirill Tuchin

We apply a Color Glass Condensate+Non-Relativistic QCD (CGC+NRQCD) framework to compute $J/\psi$ production in deuteron-nucleus collisions at RHIC and proton-nucleus collisions at the LHC. Our results match smoothly at high $p_\perp$ to a…

High Energy Physics - Phenomenology · Physics 2015-10-07 Yan-Qing Ma , Raju Venugopalan , Hong-Fei Zhang

In this contribution we study the photoproduction of quarkonium in coherent proton-proton and nucleus-nucleus interactions at the LHC. The integrated cross sections and rapidity distributions are estimated using the Color Glass Condensate…

High Energy Physics - Phenomenology · Physics 2007-06-20 V. P. Goncalves , M. V. T. Machado

The forthcoming LHC measurements in proton-nucleus (pA) collisions at forward rapidities can discriminate between the color glass condensate (CGC) and alternative approaches including standard collinear factorization one. We report some of…

High Energy Physics - Phenomenology · Physics 2013-10-17 Amir H. Rezaeian

In a Glauber Monte Carlo framework, taking account of the transverse spatial distribution of hard partons in the nucleon, we analyse the nuclear modification factor $R_{dAu}$ for $J/\psi$ in d+Au collisions with the EPS09 shadowing…

Nuclear Theory · Physics 2015-06-16 Hongmin Wang , Zhao-Yu Hou , Xian-Jing Sun

Using updated gluon distributions from global fits to data, we investigate the sensitivity of direct photoproduction of heavy quarks and exclusive production of vector mesons to varying strength of gluon modifications. Implications of using…

Nuclear Theory · Physics 2015-03-19 Adeola Adeluyi , Carlos Bertulani