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相关论文: Inclusive $\mathrm{D}^0$ photoproduction in ultrap…

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Ultraperipheral collisions (UPCs) at the LHC and RHIC provide important new information on the partonic structure of the proton and nuclei and small-$x$ dynamics in QCD. We review phenomenological applications of the collinear factorization…

高能物理 - 唯象学 · 物理学 2023-08-10 V. Guzey

We present measurements of differential cross sections for the inclusive $Z/\gamma^*$ + jet production and the inclusive photon plus heavy flavor production in a data sample of 1fb$^{-1}$ collected with the D{\O}detector in…

高能物理 - 实验 · 物理学 2014-11-20 Murilo Rangel

We calculate the cross-sections of diffractive single hadron photo- or electroproduction with large $p_T$, on a nucleon or a nucleus in the shockwave formalism. We use the hybrid formalism mixing collinear factorization with high energy…

高能物理 - 唯象学 · 物理学 2024-03-05 Michael Fucilla , Andrey Grabovsky , Emilie Li , Lech Szymanowski , Samuel Wallon

Using the framework of leading order perturbative QCD along with the CTEQ6L1 gluon distribution of the proton and high-energy HERA data on the $\gamma p \to J/\psi p$ and $\gamma p \to \psi(2S) p$ cross sections along with the corresponding…

高能物理 - 唯象学 · 物理学 2014-05-30 V. Guzey , M. Zhalov

In this presentation, we obtain the corresponding universal function to the diffractive process and show the cross section exhibits the geometrical scaling. It is observed the diffractive theory according to the color dipole approach at…

高能物理 - 唯象学 · 物理学 2021-01-18 Z. Jalilian , G. R. Boroun

Inclusive differential cross sections $d\sigma_{pA}/dx_F$ and $d\sigma_{pA}/dp_t^2$ for the production of \kzeros, \lambdazero, and \antilambda particles are measured at HERA in proton-induced reactions on C, Al, Ti, and W targets. The…

高能物理 - 实验 · 物理学 2009-01-07 B Collaboration

At the electron-proton collider HERA the inclusive $D^{*\pm}$ meson photoproduction cross section has been measured with the H1 detector in two different, but partly overlapping, kinematical regions. For the first, where $<W_{\gamma p}>…

高能物理 - 实验 · 物理学 2008-11-26 S. Aid

We present predictions for the rapidity-differential cross sections of exclusive $\Upsilon$ photoproduction in ultraperipheral collisions (UPCs) of lead ions at the Large Hadron Collider (LHC). We work in the framework of collinear…

高能物理 - 唯象学 · 物理学 2023-03-07 Kari J. Eskola , Christopher A. Flett , Vadim Guzey , Topi Löytäinen , Hannu Paukkunen

Using the Gribov-Glauber model for photon-nucleus scattering and a generalization of the vector meson dominance model for the hadronic structure of the photon, we make predictions for the cross section of incoherent $\rho$ photoproduction…

高能物理 - 唯象学 · 物理学 2020-08-05 V. Guzey , E. Kryshen , M. Zhalov

We present new NLO pQCD predictions for the inclusive photoproduction of dijets in ultra-peripheral (UPC) lead-lead collisions at 5.02 TeV with a realistic impact-parameter dependent effective photon flux obtained through the Woods-Saxon…

高能物理 - 唯象学 · 物理学 2024-07-03 Kari J. Eskola , Vadim Guzey , Ilkka Helenius , Petja Paakkinen , Hannu Paukkunen

The cross sections for exclusive $D^+D^-$ and $D^0 \bar {D^0}$ meson pair production in peripheral nucleus - nucleus collisions are calculated and several differential distributions are presented. The calculation of the elementary $\gamma…

核理论 · 物理学 2015-05-27 Marta Luszczak , Antoni Szczurek

The cross section for the inclusive photoproduction of large-p_T D^*+- mesons is calculated at next-to-leading order, adopting different approaches to describe the fragmentation of charm quarks into D^*+- mesons. We treat the charm quark…

高能物理 - 唯象学 · 物理学 2014-11-17 B. A. Kniehl , G. Kramer , M. Spira

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…

高能物理 - 唯象学 · 物理学 2018-02-14 Agnieszka Łuszczak , Wolfgang Schäfer

We study exclusive dijet production in coherent diffractive processes in deep inelastic scattering and real (and virtual) photon-hadron ($\gamma^{(*)}$-h) collisions in the Color Glass Condensate formalism at leading order. We show that the…

高能物理 - 唯象学 · 物理学 2016-05-24 Tolga Altinoluk , Néstor Armesto , Guillaume Beuf , Amir H. Rezaeian

We make predictions for the cross section of coherent $J/\psi$ photoproduction in Pb-Pb and O-O ultraperipheral collisions (UPCs) at the LHC as a function of the $J/\psi$ rapidity $y$ in the framework of collinear factorization and…

高能物理 - 唯象学 · 物理学 2023-03-23 K. J. Eskola , V. Guzey , T. Löytäinen , H. Paukkunen , C. A. Flett

Prompt photon production in hadronic collisions at the RHIC and the LHC energies is investigated within the QCD color dipole approach. Predictions for the nuclear modification factor in $pA$ collisions are evaluated based on parton…

高能物理 - 唯象学 · 物理学 2020-11-11 G. Sampaio dos Santos , G. Gil da Silveira , M. V. T. Machado

Exclusive $\rho^0$(770) photoproduction is measured for the first time in ultraperipheral pPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV with the CMS detector. The cross section $\sigma (\gamma$p $\to$ $\rho^0$(770)p) is 11.0 $\pm$ 1.4…

高能物理 - 实验 · 物理学 2019-08-29 CMS Collaboration

We present the first study of rapidity-differential cross sections of coherent exclusive $J/\psi$ photoproduction in heavy-ion ultraperipheral collisions (UPCs) at the LHC, $\text{d}\sigma(\text{Pb}+\text{Pb}\rightarrow…

高能物理 - 唯象学 · 物理学 2022-08-16 Kari J. Eskola , Chris A. Flett , Vadim Guzey , Topi Löytäinen , Hannu Paukkunen

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…

高能物理 - 唯象学 · 物理学 2011-09-13 V. P. Goncalves , M. V. T. Machado

We perform a global Bayesian analysis of diffractive $\mathrm{J}/\psi$ production in $\gamma+p$ and $\gamma+\mathrm{Pb}$ collisions using a color glass condensate (CGC) based calculation framework. As past calculations have shown that…

高能物理 - 唯象学 · 物理学 2026-02-02 Heikki Mäntysaari , Hendrik Roch , Farid Salazar , Björn Schenke , Chun Shen , Wenbin Zhao