中文
相关论文

相关论文: How large is the diffractive contribution to inclu…

200 篇论文

The current theoretical estimations lead to cross-sections for $AA \to \gamma \gamma AA$ which are somewhat smaller than the measured ones by the ATLAS and CMS Collaborations, In our recent paper, we estimated the contribution of inelastic…

高能物理 - 唯象学 · 物理学 2025-09-29 A. Szczurek , M. Klusek-Gawenda

In ultra-relativistic heavy ion collisions at the LHC, each nucleus acts as a source of high-energy quasi-real photons that can participate in scattering processes without causing either participating nucleus to break up and emit forward…

核实验 · 物理学 2026-04-29 ATLAS Collaboration

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.…

高能物理 - 实验 · 物理学 2012-08-27 CMS Collaboration

We analyse the possibilities for the study of inclusive diffraction offered by future electron--proton/nucleus colliders in the TeV regime, the Large Hadron-electron Collider as an upgrade of the HL-LHC and the Future Circular Collider in…

高能物理 - 唯象学 · 物理学 2020-08-12 Nestor Armesto , Paul R. Newman , Wojciech Slominski , Anna M. Stasto

Exclusive dimuon production in ultraperipheral collisions (UPC), resulting from photon-photon interactions in the strong electromagnetic fields of colliding high-energy lead nuclei, $\mathrm{PbPb}(\gamma\gamma) \rightarrow \mu^+\mu^-…

核实验 · 物理学 2022-02-23 ATLAS Collaboration

Inclusive transverse momentum spectra of charged particles in photoproduction events in the laboratory pseudorapidity range $-1.2<\eta<1.4$ have been measured up to $p_{T}=8\GeV $ using the ZEUS detector. Diffractive and non--diffractive…

高能物理 - 实验 · 物理学 2012-08-27 ZEUS Collaboration

We present the first NLO pQCD study of coherent exclusive $J/\psi$ photoproduction in ultraperipheral heavy-ion collisions (UPCs) at the LHC. Taking the generalized parton distributions (GPDs) in their forward limit, as parton distribution…

高能物理 - 唯象学 · 物理学 2022-09-20 K. J. Eskola , C. A. Flett , V. Guzey , T. Löytäinen , H. Paukkunen

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

We demonstrate that study of large t vector meson photoproduction with rapidity gaps in ultraperipheral proton-ion and ion-ion collisions at LHC would allow to investigate the energy dependence of cross section of elastic scattering of a…

高能物理 - 唯象学 · 物理学 2007-05-23 L. Frankfurt , M. Strikman , M. Zhalov

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 report on a study of diffractive dijet production in $\bar{p}p$ collisions at $\sqrt{s}=1.96$ TeV using the CDF II detector at the Fermilab Tevatron $\bar{p}p$ collider. A data sample from 310 pb$^{-1}$ of integrated luminosity collected…

高能物理 - 实验 · 物理学 2012-08-27 CDF II Collaboration

The rates for diffractive quarkonium plus prompt-photon associated production at the LHC are estimated. The theoretical framework considered in the J/Psi (or Upsilon) production associated with a direct photon at the hadron collider is the…

高能物理 - 唯象学 · 物理学 2010-01-15 M. B. Gay Ducati , M. M. Machado , M. V. T. Machado

We present the first next-to-leading-order (NLO) perturbative QCD (pQCD) study of rapidity-differential cross sections of coherent exclusive photoproduction of $J/\psi$ mesons in heavy-ion ultraperipheral collisions (UPCs) at the LHC,…

高能物理 - 唯象学 · 物理学 2022-10-05 Kari J. Eskola , Christopher A. Flett , Vadim Guzey , Topi Löytäinen , Hannu Paukkunen

We make predictions for the cross sections of coherent photoproduction of $\rho$, $\phi$, $J/\psi$, $\psi(2S)$, and $\Upsilon(1S)$ mesons in Pb-Pb ultraperipheral collisions (UPCs) at $\sqrt{s_{NN}}=5.02$ TeV in the kinematics of run 2 at…

核理论 · 物理学 2016-06-23 V. Guzey , E. Kryshen , M. Zhalov

The exclusive $\Upsilon$ photoproduction in ultraperipheral proton-nucleus and nucleus-nucleus collisions at LHC energies is being investigated using pQCD framework which constrain the gluon distribution in the proton and nuclei at low $x$.…

高能物理 - 唯象学 · 物理学 2017-11-17 Dipanwita Dutta , Ruchi Chudasama

In ultra-relativistic heavy ion collisions at the LHC, each nucleus acts a sources of high-energy real photons that can scatter off the opposing nucleus in ultra-peripheral photonuclear ($\gamma+A$) collisions. Hard scattering processes…

核实验 · 物理学 2025-03-28 ATLAS Collaboration

We report on the production of inclusive $\Upsilon$(1S) and $\Upsilon$(2S) in p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV at the LHC. The measurement is performed with the ALICE detector at backward ($-4.46< y_{{\rm cms}}<-2.96$) and…

核实验 · 物理学 2015-07-15 ALICE Collaboration

In this paper, we report the measurement relative to the production of forward neutrons in proton-proton collisions at $\mathrm{\sqrt{s} = 13~TeV}$ obtained using the LHCf Arm2 detector at the Large Hadron Collider. The results for the…

We compute the differential cross section for inclusive $\mathrm{D}^0$ production in ultraperipheral collisions within the Color Glass Condensate framework. Our predictions are found to be in relatively good agreement with the CMS data at…

高能物理 - 唯象学 · 物理学 2025-06-06 Patricia Gimeno-Estivill , Tuomas Lappi , Heikki Mäntysaari

An excess of J/$\psi$ yield at very low transverse momentum ($p_{\rm T} < 0.3$ GeV/$c$), originating from coherent photoproduction, is observed in peripheral and semicentral hadronic Pb$-$Pb collisions at a center-of-mass energy per nucleon…

核实验 · 物理学 2023-10-05 ALICE Collaboration