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Related papers: Production of heavy particle pairs via photon-phot…

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We review our recent results for production of $W^+ W^-$ and $t {\bar t}$ pairs via photon-photon fusion. A theoretical approach is presented in short. We include transverse momenta of photons when calculating fluxes of photons. Then we…

High Energy Physics - Phenomenology · Physics 2019-07-23 Antoni Szczurek , Marta Luszczak

We calculate the cross section for $p p \to W^{+} W^-$ in the recently developed $k_{\rm T}$-factorisation approach, including transverse momenta of the virtual photons. We focus on processes with single and double proton dissociation.…

High Energy Physics - Phenomenology · Physics 2019-01-30 Laurent Forthomme , Marta Łuszczak , Wolfgang Schäfer , Antoni Szczurek

We discuss production of $W^+ W^-$ pairs in proton-proton collisions induced by two-photon fusion including, for a first time, transverse momenta of incoming photons. The unintegrated inelastic fluxes (related to proton dissociation) of…

High Energy Physics - Phenomenology · Physics 2018-06-13 Marta Luszczak , Wolfgang Schäfer , Antoni Szczurek

In this paper we propose the study of the $W^+W^-$ and $\mu^+\mu^-$ production by two-photon interactions in $pp$ collisions at LHC energies to constrain the photon flux associated to an ultrarelativistic proton. We consider the current…

High Energy Physics - Phenomenology · Physics 2015-07-15 G. G. da Silveira , V. P. Goncalves

We discuss the production of $t\bar t$ quark-antiquark pairs in proton-proton collisions via the $\gamma\gamma$ fusion mechanism. We include topologies in which both protons stay intact or one or even both of them undergo dissociation. The…

High Energy Physics - Phenomenology · Physics 2019-03-27 Marta Łuszczak , Laurent Forthomme , Wolfgang Schäfer , Antoni Szczurek

We present a new calculation of $W^+ W^-$ production in the semi-exclusive channel, that is either with intact outgoing protons or rapidity gaps present in the final state, and with no colour flow between the colliding protons. This study…

High Energy Physics - Phenomenology · Physics 2022-06-01 S. Bailey , L. A. Harland-Lang

We discuss photon-photon fusion mechanisms of dilepton production in proton-proton collisions with rapidity gap in the main detector and one forward proton in the forward proton detectors. This is relevant for the LHC measurements by…

High Energy Physics - Phenomenology · Physics 2021-10-27 Antoni Szczurek , Barbara Linek , Marta Łuszczak

The cross section for exclusive heavy quark and heavy antiquark pair ($Q \bar Q$) production in peripheral ultrarelativistic heavy ion collisions is calculated for the LHC energy $\sqrt{s_{NN}}$ = 5.5 TeV. Here we consider only processes…

Nuclear Theory · Physics 2011-02-21 Mariola Klusek-Gawenda , Antoni Szczurek , Magno Machado , Valeriy Serbo

We calculate the photoproduction of heavy quarks in proton-proton collisions at RHIC, Tevatron and LHC energies. The integrated cross section and the rapidity distributions for open charm and bottom production are computed employing sound…

High Energy Physics - Phenomenology · Physics 2011-01-25 V. P. Goncalves , M. V. T. Machado

We discuss the mechanisms of photon-photon fusion triggering the dilepton production in proton-proton collisions with rapidity gap in the main detector and one forward proton in the forward proton detectors. This correspond to the LHC…

High Energy Physics - Phenomenology · Physics 2022-06-24 Barbara Linek

We study the inelastic charmonium ($J/\psi$, $\psi(2S)$) and bottomonium ($\Upsilon(nS)$) photoproduction and fragmentation processes in $p$-$p$ and $Pb$-$Pb$ collisions at LHC energies, where the ultra-incoherent photon emission is…

High Energy Physics - Phenomenology · Physics 2025-08-01 Zhi-Lei Ma , Zhun Lu , Hao Liu , Li Zhang

The pair production of charged heavy leptons via two photon fusion is considered for hadron collisions at SSC and LHC energies. Rates for the inelastic process $pp \rightarrow \gamma \gamma X \rightarrow L^+L^-X$ and the elastic process $pp…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Bhattacharya , P. A. Kalyniak , K. A. Peterson

We present the results of the new SuperChic 4 Monte Carlo implementation of photon-initiated production in proton-proton collisions, considering as a first example the case of lepton pair production. This is based on the structure function…

High Energy Physics - Phenomenology · Physics 2021-10-06 L. A. Harland-Lang , M. Tasevsky , V. A. Khoze , M. G. Ryskin

Ultraperipheral collisions of high energy protons are a source of approximately real photons colliding with each other. Photon fusion can result in production of yet unknown charged particles in very clean events. The cleanliness of such an…

High Energy Physics - Phenomenology · Physics 2021-11-01 S. I. Godunov , V. A. Novikov , A. N. Rozanov , M. I. Vysotsky , E. V. Zhemchugov

We analyze the photon-initiated processes for production of $ e ^ + e ^- $ pairs in proton-nucleus collisions at LHC energy, taking into account both elastic processes and proton dissociations in the low-mass region (LMR) and…

High Energy Physics - Phenomenology · Physics 2022-12-07 Barbara Linek , Marta Łuszczak , Wolfgang Schäfer , Antoni Szczurek

In relativistic heavy ion collisions, top quarks can be produced by photon-gluon fusion when a photon from the Weizs\"acker-Williams virtual photon field of one nucleus interacts with a gluon in the other nucleus. Photoproduction with heavy…

High Energy Physics - Phenomenology · Physics 2009-01-07 Spencer R. Klein , Joakim Nystrand , Ramona Vogt

The vector bosons production at the Large Hadron Collider makes it possible to investigate in detail the basic structure of electroweak interactions. Besides the LHC with a good accuracy will be measure production of weak bosons ($pp \to…

High Energy Physics - Phenomenology · Physics 2018-06-12 Azad I. Ahmadov

Two opposite charged new heavy gauge boson pair production at the Large Hadron Collider (LHC) is presented in this paper. These bosons are known as $W^{'}$ boson due to the reason that it is the heavy version of Standard Model's weak force…

High Energy Physics - Phenomenology · Physics 2023-08-28 Ijaz Ahmed , Fazal Khaliq , M. U. Ashraf , Taimoor Khurshid , Jamil Muhammad

A search is presented for the pair production of new heavy resonances, each decaying into a top quark (t) or antiquark and a gluon (g). The analysis uses data recorded with the CMS detector from proton-proton collisions at a center-of-mass…

High Energy Physics - Experiment · Physics 2025-04-01 CMS Collaboration

We discuss the mechanism of dilepton production in proton-proton scattering via fusion of virtual photons with identification of one proton on either side. This is relevant for the ATLAS+AFP and CMS+PPS at the LHC. Transverse momenta of the…

High Energy Physics - Phenomenology · Physics 2021-11-15 Antoni Szczurek , Barbara Linek , Marta Luszczak
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