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The reaction e+ e- -> e+ e- gamma* gamma* -> e+ e- hadrons is analysed for quasi-real virtual photons using data collected by the L3 detector during the LEP high energy runs at sqrt(s) = 183 and 189 GeV. Preliminary results on the cross…

High Energy Physics - Experiment · Physics 2007-05-23 Akos Csilling

The process e+ e- -> e+ e- Z/gamma* is studied with the OPAL detector at LEP at a centre of mass energy of sqrt(s) = 189 GeV. The cross-section times the branching ratio of the Z/gamma* decaying into hadrons is measured within Lorentz…

High Energy Physics - Experiment · Physics 2010-05-28 The OPAL collaboration , G. Abbiendi

A forward amplitude analysis on $pp$ and $\bar{p}p$ elastic scattering above 5 GeV is presented. The dataset includes the recent high-precision TOTEM measurements of the $pp$ total and elastic (integrated) cross-sections at 7 TeV and 8 TeV.…

High Energy Physics - Phenomenology · Physics 2013-07-31 M. J. Menon , P. V. R. G. Silva

The total hadronic cross-section sigma_gg(W) for the interaction of real photons, gg->hadrons, is measured for gg centre-of-mass energies 10<W<110 GeV. The cross-section is extracted from a measurement of the process e+e- -> e+e-g*g* ->…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL Collaboration , G. Abbiendi

I discuss the minijet contribution to total photoproduction and photon--photon cross sections. While minijets with $p_T$ around 2 GeV have recently been observed directly in \gamgam\ experiments, the total \gamp\ cross section measured at…

High Energy Physics - Phenomenology · Physics 2009-09-25 Manuel Drees

Differential cross-section measurements of $Z\gamma$ production in association with hadronic jets are presented, using the full 139 fb$^{-1}$ dataset of $\sqrt{s}=13$ TeV proton-proton collisions collected by the ATLAS detector during Run 2…

High Energy Physics - Experiment · Physics 2023-08-11 ATLAS Collaboration

In this paper we apply to photoproduction total cross-section a model we have proposed for purely hadronic processes and which is based on QCD mini-jets and soft gluon re-summation. We compare the predictions of our model with the HERA data…

High Energy Physics - Phenomenology · Physics 2014-11-18 R. M. Godbole , A Grau , G. Pancheri , Y. N. Srivastava

The cross section for the production of the lightest neutral Higgs boson in association with a high-pT hadronic jet, calculated in the framework of the minimal supersymmetric standard model (MSSM), is presented. The expectations for the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Oliver Brein , Wolfgang Hollik

We study the processes \gamma \e -> \gamma \e and \gamma \gamma -> \gamma \gamma, in the context of the proposal for Weak Scale Quantum Gravity (WSQG) with large extra dimensions. With an ultraviolet cutoff $M_S \sim 1$ TeV for the…

High Energy Physics - Phenomenology · Physics 2015-06-25 Hooman Davoudiasl

Measurements of the differential jet cross section are presented as a function of jet mass in dijet events, in bins of jet transverse momentum, with and without a jet grooming algorithm. The data have been recorded by the CMS Collaboration…

High Energy Physics - Experiment · Physics 2018-11-28 CMS Collaboration

In this paper, we report the production cross-section of forward photons in the pseudorapidity regions of $\eta\,>\,10.94$ and $8.99\,>\,\eta\,>\,8.81$, measured by the LHCf experiment with proton--proton collisions at $\sqrt{s}$ = 13 TeV.…

A Regge model of the Pomeron with intercept equal to one, leading to rising cross-sections is considered. Analysis of the experimental data on hadron and photon induced interactions is performed within the model. It is shown that the…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. Martynov

The reaction e+e- -> e+e- gamma* gamma* -> e+e- hadrons for quasi-real photons is studied using data from root(s) = 183 GeV up to 202 GeV. Results on the total cross sections sigma(e+e- -> e+e- hadrons) and sigma(+e- gamma* gamma* -> e+e-…

High Energy Physics - Experiment · Physics 2012-08-27 L3 Collaboration

We present pseudorapidity and transverse momentum distributions for the cross section for the production of the lightest neutral Higgs boson in association with a high-p_T hadronic jet, calculated in the framework of the minimal…

High Energy Physics - Phenomenology · Physics 2008-11-26 Oliver Brein , Wolfgang Hollik

The results of measurements of gamma-N total cross section, obtained by the method of photoproduction processes registration at the Baksan Underground Scintillation Telescope, are presented. These data at energies sqrt(s)=40-130 GeV confirm…

High Energy Physics - Experiment · Physics 2007-05-23 O. Lalakulich , Yu. Novoseltsev , R. Novoseltseva , G. Vereshkov

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…

New results are presented for total ${\rm pp}/ {\rm \bar p p}$ cross-sections, in the framework of our QCD based model (GGPS). This is an improved eikonal mini-jet model, where soft gluon radiation tames the fast energy rise normally…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andrea Achilli , Rohit Hegde , Rohini M. Godbole , Agnes Grau , Giulia Pancheri , Yogi Srivastava

Feasibility of the precise measurement of the SM Higgs-boson production cross section gamma+gamma->h->b+bbar at the Photon Collider is studied in detail for M_h=120-160 GeV. All relevant experimental and theoretical issues, which could…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Niezurawski

It is important to explore the Higgs sector in order to identify the model beyond the standard model. We study the charged Higgs production in the $\gamma\gamma$ mode of a linear collider (LC) with 1000 GeV center of mass energy. We show…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Asakawa , O. Brein , S. Kanemura

Predictions for total inelastic cross-sections for photon induced processes are discussed in the context of the QCD-inspired minijet model. Large theoretical uncertainties exist, some of them related to the parton distributions of hadrons…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Corsetti , A. Grau , R. M. Godbole , G. Pancheri , Y. N. Srivastava