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Related papers: Inclusive $\mathrm{D}^0$ photoproduction in ultrap…

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We calculate in next-to-leading order inclusive cross sections of single-particle production via resolved photons in $ep$ collisions at HERA. Transverse-momentum and rapidity distributions are presented and the scale dependence is studied.…

High Energy Physics - Phenomenology · Physics 2011-07-19 F. M. Borzumati , B. A. Kniehl , G. Kramer

We predict the cross-section for diffractive $\phi$ electroproduction within the dipole model, using a holographic meson wavefunction for the $\phi$. For the dipole cross-section, we use the Color Glass Condensate dipole model whose…

High Energy Physics - Phenomenology · Physics 2016-07-05 Mohammad Ahmady , Ruben Sandapen , Neetika Sharma

We provide quantitative predictions for the rapidity, centrality and energy dependencies of inclusive charged-hadron productions for the forthcoming LHC measurements in nucleus-nucleus collisions based on the idea of gluon saturation in the…

High Energy Physics - Phenomenology · Physics 2010-09-02 Eugene Levin , Amir H. Rezaeian

The inclusive $J/\Psi$, $\Psi(2S)$ and $\Upsilon(1S)$ direct and resolved photoproduction are investigated by including the quark subprocesses in the framework of non-relativistic quantum chromodynamics (NRQCD). We find that the theoretical…

High Energy Physics - Phenomenology · Physics 2021-08-04 Jiayu Wu , Yanbing Cai , Wenchang Xiang

We consider semi-inclusive diphoton+jet and inclusive diphoton production in high-energy proton-nucleus collisions, treating the target nucleus as a Color-Glass-Condensate and the projectile proton in the parton model. We obtain the prompt…

High Energy Physics - Phenomenology · Physics 2014-07-23 Alex Kovner , Amir H. Rezaeian

The ALICE experiment measured J/psi photoproduction in Pb+Pb ultraperipheral collisions at sqrt(s_NN) = 2.76 TeV at forward and central rapidity. The coherent J/psi cross section is found to be in good agreement with those models which…

Nuclear Experiment · Physics 2019-08-13 Evgeny Kryshen

The ALICE Collaboration at the CERN LHC has measured the inclusive production cross section of isolated photons at midrapidity as a function of the photon transverse momentum ($p_{\rm T}^{\gamma}$), in Pb$-$Pb collisions in different…

Nuclear Experiment · Physics 2025-06-03 ALICE Collaboration

Using the NRQCD factorization formalism, we calculate the total cross section for the photoproduction of h_c mesons. We include color-octet and color-singlet mechanisms as well as next-to-leading order perturbative QCD corrections. The…

High Energy Physics - Phenomenology · Physics 2009-10-31 Sean Fleming , Thomas Mehen

We have investigated the $\rho^{0}$ meson photoproduction in ultraperipheral isobaric collisions between $_{44}^{96}\textrm{Ru}+_{44}^{96}\textrm{Ru}$ and $_{40}^{96}\textrm{Zr}+_{40}^{96}\textrm{Zr}$ at $\sqrt{s_{NN}}=200$ GeV, employing…

High Energy Physics - Phenomenology · Physics 2025-04-22 Shuo Lin , Jin-Yu Hu , Hao-Jie Xu , Shi Pu , Qun Wang

Results of exclusive photoproduction of Upsilon states in Ultraperipheral collisions (UPC) of protons and ions with the CMS experiment are presented, which provides a clean probe of the gluon distribution at small values of parton…

High Energy Physics - Experiment · Physics 2019-08-14 Ruchi Chudasama , Dipanwita Dutta

We calculate the next-to-leading-order cross section for the inclusive production of B mesons in pp collisions in the general-mass variable-flavor-number scheme, an approach which takes into account the finite mass of the b quarks. We use…

High Energy Physics - Phenomenology · Physics 2015-05-30 B. A. Kniehl , G. Kramer , I. Schienbein , H. Spiesberger

We review model calculations of exclusive vector meson production in ultraperipheral heavy ion collisions. We highlight differences and similarities between different dipole models and leading twist shadowing calculations. Recent color…

Nuclear Theory · Physics 2024-04-18 Björn Schenke , Heikki Mäntysaari , Farid Salazar , Chun Shen , Wenbin Zhao

We determine the initial condition for the small-$x$ evolution equation (BK) from the HERA deep inelastic scattering data using a new parametrization that also keeps the unintegrated gluon distribution positive. The obtained dipole…

High Energy Physics - Phenomenology · Physics 2014-10-13 T. Lappi , H. Mäntysaari

The exclusive photoproduction of the heavy vector mesons $\psi$'s and $Y$'s is investigated in peripheral lead-lead collisions for the energies available at the LHC, $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV. In order to evaluate the…

High Energy Physics - Phenomenology · Physics 2018-06-27 M. B. Gay Ducati , S. Martins

In this paper we present a comprehensive analysis of exclusive vector meson photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies using the Color Dipole formalism. The rapidity distributions and total cross sections for…

High Energy Physics - Phenomenology · Physics 2017-12-06 V. P. Goncalves , M. V. T. Machado , B. D. Moreira , F. S. Navarra , G. Sampaio dos Santos

The Upsilon production cross section in proton-proton collisions at sqrt(s) = 7 TeV is measured using a data sample collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 3.1 +/- 0.3 inverse picobarns.…

High Energy Physics - Experiment · Physics 2012-08-27 CMS Collaboration

Using the framework of collinear factorization in perturbative QCD (pQCD), we analyze the recent data of the LHCb and ALICE collaborations on exclusive photoproduction of J/{\psi} in ultraperipheral pp and AA collisions, respectively. We…

High Energy Physics - Phenomenology · Physics 2015-06-16 V. Guzey , M. Zhalov

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

The first measurement of inclusive Ds+- photoproduction at HERA has been performed with the ZEUS detector for photon-proton centre-of-mass energies 130 < W < 280 GeV. The measured cross section for 3 < pt(Ds) < 12 GeV and |eta(Ds)|< 1.5 is…

High Energy Physics - Experiment · Physics 2012-08-27 ZEUS Collaboration

First measurements of the differential cross sections for the inclusive production of a photon in association with a heavy quark (c, b) jet are presented, covering photon transverse momenta 30-150 GeV, photon rapidities | y_gamma| < 1.0,…

High Energy Physics - Experiment · Physics 2010-04-08 D0 Collaboration , V. M. Abazov