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The photonuclear production of vector mesons in ultraperipheral heavy ion collisions is investigated within the QCD color dipole picture, with particular emphasis on the saturation model. The integrated cross section and the rapidity…

High Energy Physics - Phenomenology · Physics 2011-09-13 V. P. Goncalves , M. V. T. Machado

We investigate the scattering of a quark on a heavy nucleus at high energies using the time-dependent basis light-front quantization (tBLFQ) formalism, which is the first application of the tBLFQ formalism in QCD. We present the real-time…

Nuclear Theory · Physics 2020-04-22 Meijian Li , Xingbo Zhao , Pieter Maris , Guangyao Chen , Yang Li , Kirill Tuchin , James P. Vary

We investigate the angular correlation between pions and photons produced in deuteron-gold collisions at RHIC and proton-lead collisions at LHC using the Color Glass Condensate formalism and make predictions for the dependence of the…

Nuclear Theory · Physics 2009-07-22 Jamal Jalilian-Marian

In ultrarelativistic heavy ion collisions the baryon-meson ratio is not fully understood in the intermediate-to-high transverse momentum region. Although quark coalescence methods combined with jet fragmentation yield results close to the…

High Energy Physics - Phenomenology · Physics 2012-08-03 Dániel Berényi , Attila Pásztor , Vladimir Skokov , Péter Lévai

When two sheets of Color Glass Condensate collide in a high energy heavy ion collision, they form matter with very high energy densities called the Glasma. We describe how this matter is formed, its remarkable properties and its relevance…

High Energy Physics - Phenomenology · Physics 2008-11-26 Raju Venugopalan

We calculate cross sections and transverse momentum distributions for the incoherent diffractive production of vector mesons $J/\psi$ and $\Upsilon$ on heavy nuclei. In distinction to coherent diffraction, the nucleus is allowed to break…

High Energy Physics - Phenomenology · Physics 2018-02-14 Agnieszka Łuszczak , Wolfgang Schäfer

We consider production of prompt photons in high energy gold-gold and deuteron-gold collisions in the forward rapidity region of RHIC ($y \sim 3.8$). In this kinematics, the projectile partons typically have large $x_{bj}$ while the target…

High Energy Physics - Phenomenology · Physics 2010-11-30 Jamal Jalilian-Marian

Photonuclear reactions are induced by the strong electromagnetic field generated by ultrarelativistic heavy-ion collisions. These processes have been extensively studied in ultraperipheral collisions, where the impact parameter is larger…

Nuclear Experiment · Physics 2024-02-21 Afnan Shatat

Quarkonium production is a sensitive probe of the dynamics of hard scattering, which can `measure' the environment of the heavy quark pair after it is created in a hard process. Quarkonium hadroproduction data indicates that the produced…

High Energy Physics - Phenomenology · Physics 2009-10-31 Paul Hoyer

We investigate the photoproduction of $\rho$ mesons in ultraperipheral heavy ion collisions at RHIC and LHC energies in the dipole approach and within two phenomenological models based on the the Color Glass Condensate (CGC) formalism. We…

High Energy Physics - Phenomenology · Physics 2009-11-10 V. P. Goncalves , M. V. T. Machado

In this review, I present the description of the early stages of heavy ion collisions at high energy in the Color Glass Condensate framework, from the pre-collision high energy nuclear wavefunction to the point where hydrodynamics may start…

High Energy Physics - Phenomenology · Physics 2015-09-07 F. Gelis

We have investigated light nuclei pair photoproduction in relativistic heavy ion ultraperipheral collisions. As a first attempt, we employ our previously developed quantum electrodynamics model, which incorporates a wave-packet description…

High Energy Physics - Phenomenology · Physics 2024-07-09 Jin-Yu Hu , Shuo Lin , Shi Pu , Qun Wang

In the Color Glass Condensate, the inclusive spectrum of produced quarks in a heavy ion collision is obtained as the Fourier transform of a $2$-fermion correlation function. Due to its non-locality, the two points of this function must be…

High Energy Physics - Phenomenology · Physics 2019-09-06 Francois Gelis , Naoto Tanji

We investigate possible precursory phenomena of color superconductivity at finite temperature $T$ with an effective theory of QCD. It is found that the fluctuation of the diquark pair field exists with a prominent strength even well above…

High Energy Physics - Phenomenology · Physics 2009-11-07 M. Kitazawa , T. Koide , T. Kunihiro , Y. Nemoto

We propose a simple parametrization for the deep-inelastic diffractive cross section. It contains the contribution of $q\bar{q}$ production to both the longitudinal and the transverse diffractive structure functions, and of the production…

High Energy Physics - Phenomenology · Physics 2009-09-11 J. Bartels , J. Ellis , H. Kowalski , M. Wuesthoff

Quarkonium production in high-energy proton (deuteron)-nucleus collisions is investigated in the color glass condensate framework. We employ the color evaporation model assuming that the quark pair produced from dense small-x gluons in the…

High Energy Physics - Phenomenology · Physics 2015-06-15 Hirotsugu Fujii , Kazuhiro Watanabe

The high energy limit of QCD is controlled by very high energy density gluonic matter, the Color Glass Condensate. In the first instants of the collisions of two sheets of Colored Glass Condensate, a Glasma is formed with longitudinal flux…

High Energy Physics - Phenomenology · Physics 2008-07-28 Larry McLerran

Initial states of glasma in high energy heavy ion collisions are longitudinal classical color electric and magnetic fields. Assuming finite color electric conductivity, we show that the color electric field decays by quark pair production…

High Energy Physics - Phenomenology · Physics 2015-05-28 Aiichi Iwazaki

We study finite density QCD in an approximation in which the interaction between quarks is modelled on that induced by instantons. We sketch the mechanism by which chiral symmetry restoration at finite density occurs in this model. At all…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Alford , K. Rajagopal , F. Wilczek

I review the present status of two related models addressing scenarios in which the formation of heavy quarkonium states in high energy heavy ion collisions proceed via "off-diagonal" combinations of a quark and an antiquark. The physical…

High Energy Physics - Phenomenology · Physics 2009-01-07 R. L. Thews
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