English
Related papers

Related papers: Dijet photoproduction and transverse-plane geometr…

200 papers

We present a comprehensive NLO pQCD study on inclusive dijet photoproduction in ultraperipheral nucleus-nucleus collisions (UPCs). Our analysis takes into account the finite size of both the photon-emitting and the target nucleus, estimated…

High Energy Physics - Phenomenology · Physics 2024-05-07 Kari J. Eskola , Vadim Guzey , Ilkka Helenius , Petja Paakkinen , Hannu Paukkunen

We present next-to-leading order perturbative QCD predictions for inclusive dijet photoproduction in ultra-peripheral nucleus-nucleus collisions (UPCs) within the impact-parameter dependent equivalent photon approximation. Taking into…

High Energy Physics - Phenomenology · Physics 2024-10-04 Kari J. Eskola , Vadim Guzey , Ilkka Helenius , Petja Paakkinen , Hannu Paukkunen

We present new NLO pQCD predictions for photoproduction of dijets in ultraperipheral PbPb collisions at 5.02 TeV with a realistic photon flux and up-to-date nuclear PDFs. Our calculation of the impact parameter dependence of the photon flux…

High Energy Physics - Phenomenology · Physics 2023-11-30 Kari J. Eskola , Vadim Guzey , Ilkka Helenius , Petja Paakkinen , Hannu Paukkunen

We calculate cross sections for inclusive dijet photoproduction in electron-nucleus scattering in the kinematics of the future EIC and the possible LHeC, HE-LHeC, and the FCC using next-to-leading order (NLO) perturbative QCD and nCTEQ15…

High Energy Physics - Phenomenology · Physics 2021-01-04 V. Guzey , M. Klasen

We compute the cross section of inclusive dijet photoproduction in ultraperipheral Pb-Pb collisions at the LHC using next-to-leading order perturbative QCD. We demonstrate that our theoretical calculations provide a good description of…

High Energy Physics - Phenomenology · Physics 2019-07-08 V. Guzey , M. Klasen

We calculate the cross section of inclusive dijet photoproduction in ultraperipheral collisions (UPCs) of heavy ions at the CERN Large Hadron Collider using next-to-leading order perturbative QCD and demonstrate that it provides a good…

High Energy Physics - Phenomenology · Physics 2021-07-01 V. Guzey , M. Klasen

In this contribution, we summarize NLO pQCD predictions for inclusive and diffractive dijet photoproduction in Pb-Pb UPCs at the LHC. We demonstrate that the theory describes well the preliminary ATLAS data on the inclusive cross section,…

High Energy Physics - Phenomenology · Physics 2024-03-27 V. Guzey

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…

High Energy Physics - Phenomenology · Physics 2023-03-07 Kari J. Eskola , Christopher A. Flett , Vadim Guzey , Topi Löytäinen , Hannu Paukkunen

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 $x$.…

High Energy Physics - Phenomenology · Physics 2017-11-17 Dipanwita Dutta , Ruchi Chudasama

We present a next-to-leading order QCD calculation of inclusive dijet photoproduction in ultraperipheral Pb-Pb collisions at the LHC and show that the results agree very well with various kinematic distributions measured by the ATLAS…

High Energy Physics - Phenomenology · Physics 2019-09-20 V. Guzey , M. Klasen

We make predictions for the cross sections of diffractive dijet photoproduction in $pp$, $pA$ and $AA$ ultraperipheral collisions (UPCs) at the LHC during Runs 1 and 2 using next-to-leading perturbative QCD. We find that the resulting cross…

High Energy Physics - Phenomenology · Physics 2016-05-25 V. Guzey , M. Klasen

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,…

High Energy Physics - Phenomenology · Physics 2022-10-05 Kari J. Eskola , Christopher A. Flett , Vadim Guzey , Topi Löytäinen , Hannu Paukkunen

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…

Nuclear Experiment · Physics 2025-03-28 ATLAS 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…

High Energy Physics - Phenomenology · Physics 2022-09-20 K. J. Eskola , C. A. Flett , V. Guzey , T. Löytäinen , H. Paukkunen

We present predictions for the cross sections of coherent $J/\psi$ photoproduction in lead-lead and oxygen-oxygen ultraperipheral collisions (UPCs) as a function of the $J/\psi$ rapidity at the LHC in the framework of collinear…

High Energy Physics - Phenomenology · Physics 2023-12-21 Kari J. Eskola , Christopher A. Flett , Vadim Guzey , Topi Löytäinen , Hannu Paukkunen

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…

High Energy Physics - Phenomenology · Physics 2023-03-23 K. J. Eskola , V. Guzey , T. Löytäinen , H. Paukkunen , C. A. Flett

We study the nuclear dependences of high-$p_T$ jet cross sections in one photon and one jet production in proton-nucleus collisions. We find that there exist asymmetries between the outgoing jets and photons. A convincing reason responsible…

High Energy Physics - Phenomenology · Physics 2009-10-31 Hong Shen , Ma Luo

This Letter reports the first measurement of photonuclear D$^0$ meson production in ultraperipheral heavy ion collisions. The study is performed using lead-lead collision data, with an integrated luminosity of 1.34 nb$^{-1}$, collected by…

Nuclear Experiment · Physics 2026-04-28 CMS Collaboration

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…

Nuclear Experiment · Physics 2026-04-29 ATLAS Collaboration

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…

High Energy Physics - Phenomenology · Physics 2014-05-30 V. Guzey , M. Zhalov
‹ Prev 1 2 3 10 Next ›