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We present a study of central exclusive production of $W^+W^-$ pairs in proton-proton collisions at the LHC. We compare the contribution of the $\gamma \gamma \to W^+ W^-$ mechanism with a new mechanism of exclusive diffractive production…

High Energy Physics - Phenomenology · Physics 2012-12-18 Piotr Lebiedowicz , Roman Pasechnik , Antoni Szczurek

A model for exclusive diffractive resonance production in proton-proton collisions at LHC energies is presented. This model is based on the convolution of the Donnachie-Landshoff parameterisation of Pomeron flux in the proton with the…

High Energy Physics - Phenomenology · Physics 2016-12-21 Roberto Fiore , Laszlo Jenkovszky , Rainer Schicker

The ALICE Collaboration reports three measurements in ultra-peripheral proton$-$lead collisions at forward rapidity. The exclusive two-photon process \ggmm and the exclusive photoproduction of J/$\psi$ are studied. J/$\psi$ photoproduction…

Nuclear Experiment · Physics 2024-01-09 ALICE Collaboration

We present updated predictions for the total cross section for Higgs boson production by gluon--gluon fusion in hadron collisions. Our calculation includes the most advanced theoretical information available at present for this observable:…

High Energy Physics - Phenomenology · Physics 2009-11-19 D. de Florian , M. Grazzini

A comprehensive analysis of the photoproduction of $J/\Psi$ and $\Upsilon$ mesons in peripheral $PbPb$ collisions at the center - of - mass energies of the Large Hadron Collider (LHC) is performed, considering distinct assumptions for the…

Nuclear Experiment · Physics 2025-08-05 Pedro E. A. da Costa , André V. Giannini , Victor P. Goncalves , Bruno D. Moreira

A search for pairs of Higgs bosons produced via gluon and vector boson fusion is presented, focusing on the four b quark final state. The data sample consists of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with…

High Energy Physics - Experiment · Physics 2022-08-23 CMS Collaboration

Within the resolved Pomeron model of hard diffractive scattering, we compute prompt photon production in double-Pomeron-exchange events in proton-proton collisions. Using specific kinematical constraints chosen according to the acceptances…

High Energy Physics - Phenomenology · Physics 2016-05-04 A. K. Kohara , C. Marquet

We analyze the production and detection of the Higgs boson in the next generation of linear $e^+e^-$ colliders operating in the $e\gamma$ mode. In particular, we study the production mechanism $e + \gamma \rightarrow e \gamma \gamma…

High Energy Physics - Phenomenology · Physics 2009-10-22 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. F. Novaes

Differential Higgs boson (H) production cross sections are sensitive probes for physics beyond the standard model. New physics may contribute in the gluon-gluon fusion loop, the dominant Higgs boson production mechanism at the LHC, and…

High Energy Physics - Experiment · Physics 2019-04-17 CMS Collaboration

The production of the $W$ and $Z$ bosons in single diffractive processes at the LHC is investigated taking into account the ATLAS, CMS and LHCb acceptances and considering different assumptions for the flavour content of the Pomeron. The…

High Energy Physics - Phenomenology · Physics 2019-02-27 E. A. F. Basso , V. P. Goncalves , D. E. Martins , M. S. Rangel

We discuss diphoton semi(exclusive) production in ultraperipheral $PbPb$ collisions at energy of $\sqrt{s_{NN}}=$ 5.5 TeV (LHC). The nuclear calculations are based on equivalent photon approximation in the impact parameter space. The cross…

High Energy Physics - Phenomenology · Physics 2016-10-28 Mariola Klusek-Gawenda , Antoni Szczurek

We give detailed predictions for diffractive SUSY Higgs boson and top squark associated productions at the LHC via the exclusive double pomeron exchange mechanism. We study how the SUSY Higgs cross section and the signal over background…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Boonekamp , J. Cammin , S. Lavignac , R. Peschanski , C. Royon

The production of a single neutral Higgs boson h through (loop-induced) gamma-gamma collisions is explored in the context of the linear colliders within the general Two-Higgs-Doublet Model (2HDM). Two different mechanisms are analyzed: on…

High Energy Physics - Phenomenology · Physics 2014-11-18 Nicolas Bernal , David Lopez-Val , Joan Sola

We propose a novel mechanism for the production of the Higgs boson in inclusive hadronic collisions, which utilizes the presence of heavy quarks in the proton wave function. In these inclusive reactions the Higgs boson acquires the momenta…

High Energy Physics - Phenomenology · Physics 2008-11-26 Stanley J. Brodsky , Alfred S. Goldhaber , Boris Z. Kopeliovich , Ivan Schmidt

We consider single-diffractive (SD) Higgs production in association with heavy flavour in proton-proton collisions at the LHC. The main focus of our study is a reliable estimate of SD/inclusive ratio, not a precision computation of the…

High Energy Physics - Phenomenology · Physics 2015-11-18 Roman Pasechnik , Boris Kopeliovich , Irina Potashnikova

Collisions with Oxygen ions at the LHC opens the possibility of investigating the description of the QCD dynamics in an unexplored regime, complementary to those performed in $pp$, $pPb$ and $PbPb$ collisions. In this paper we estimate the…

High Energy Physics - Phenomenology · Physics 2023-06-07 Victor P. Goncalves , Bruno D. Moreira , Luana Santana

Higgs boson production in association with two forward jets and a central photon at the CERN Large Hadron Collider is analyzed, for the Higgs boson decaying into a b bbar pair in the m_H <= 140 GeV mass region. We study both irreducible and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Emidio Gabrielli , Fabio Maltoni , Barbara Mele , Mauro Moretti , Fulvio Piccinini , Roberto Pittau

The Higgs production in the two-photon fusion process is investigated where one of the photons is off-shell while the other one is on-shell. This process is realized in either electron-positron collision or electron-photon collision where…

High Energy Physics - Phenomenology · Physics 2015-06-17 Norihisa Watanabe , Yoshimasa Kurihara , Ken Sasaki , Tsuneo Uematsu

Searches are performed for nonresonant and resonant di-Higgs boson production in the $b\bar{b}\gamma\gamma$ final state. The data set used corresponds to an integrated luminosity of 139 fb$^{-1}$ of proton-proton collisions at a…

High Energy Physics - Experiment · Physics 2022-09-13 ATLAS Collaboration

We revisit the production of a single Higgs boson from direct \gamma \gamma -scattering at a photon collider. We compute the total cross section \sigma(\gamma \gamma \to h) (for h=h0, H0, A0), and the strength of the effective g_{h \gamma…

High Energy Physics - Phenomenology · Physics 2011-08-26 David Lopez-Val , Joan Sola