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Two-photon processes in electron-positron collisions of the form $e^+e^-\to e^+e^-X$ are a well-established tool for probing hadronic structure and provide a direct access to non-vector states in $e^+e^-$ collisions. Collisions of quasi…

High Energy Physics - Experiment · Physics 2025-05-20 Max Lellmann

Photon-photon collisions are investigated in the framework of the two-component Dual Parton Model. The model is shown to agree well to hadron production data from hadron-hadron and photon-hadron collisions. The multiparticle production in…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Engel , J. Ranft

Two photon collisions offer a variety of physics studies that can be performed at the future electron-positron colliders. Using the planned CEPC parameters as a benchmark we consider several topics to be studied in the two-photon…

High Energy Physics - Phenomenology · Physics 2022-12-14 I. R. Boyko , V. V. Bytev , A. S. Zhemchugov

Two-photon processes in relativistic heavy-ion collisions have emerged as a critical probe of quantum electrodynamics in ultra-intense electromagnetic fields, with recent focus extending beyond dileptons to hadronic final states. At…

High Energy Physics - Phenomenology · Physics 2026-02-26 Luobing Wang , Xinbai Li , Zebo Tang , Xin Wu , Wangmei Zha

Equivalent photon approximation is used to calculate fiducial cross sections for dimuon production in ultraperipheral proton-proton and lead-lead collisions. Analytical formulae taking into account experimental cuts are derived. The results…

High Energy Physics - Phenomenology · Physics 2019-08-13 Mikhail Vysotsky , Evgeny Zhemchugov

Using the strong electromagnetic fields in peripheral heavy ion collisions gives rise to a number of interesting possibilities of applications in both photon-photon and photon-hadron physics. We look at the theoretical foundations of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kai Hencken

The production of large $p_{T}$ dileptons and photons originating from photoproduction processes in p-p collisions at Large Hadron Collider energies is calculated. The comparisons between the exact treatment results and the ones of the…

High Energy Physics - Phenomenology · Physics 2018-04-18 Zhi-Lei Ma , Jia-Qing Zhu

Exclusive hadron production processes in photon-photon collisions provide important tests of QCD at the amplitude level, particularly as measures of hadron distribution amplitudes and skewed parton distributions. The determination of the…

High Energy Physics - Phenomenology · Physics 2009-09-25 S. J. Brodsky

This review covers selected results from the LEP experiments on the structure of quasi-real and virtual photons. The topics discussed are the total hadronic cross-section for photon-photon scattering, hadron production, jet cross-sections,…

High Energy Physics - Experiment · Physics 2016-08-31 Richard Nisius

Through a consistent analysis of the terms neglected in going from the accurate expression to the one of Weizs\"{a}cker-Williams approximation (WWA), the validity of equivalent photon spectra is studied, and a modified photon flux of proton…

High Energy Physics - Phenomenology · Physics 2022-01-04 Zhi-Lei Ma , Zhun Lu , Li Zhang

The total hadronic cross-section for the interaction of real photons is extracted from a measurement of the cross-section of the process e+e->e+e- + hadrons using a luminosity function for the photon flux and form factors for extrapolating…

High Energy Physics - Experiment · Physics 2009-10-30 Frank Waeckerle

We present an indepth investigation of certain aspects of the two level on resonant multiphoton approximation to pair production from vacuum in the presence of strong electromagnetic fields. Numerical computations strongly suggest that a…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Tsohantjis , S. Moustaizis , I. Ploumistakis

An improved effective vector-boson approximation is applied to hadron-hadron collisions. I include an approximative treatment and compare with a complete perturbative calculation for the specific example of $ZZ$ production. The results are…

High Energy Physics - Phenomenology · Physics 2011-07-19 I. Kuss

Effective photon-photon luminosities are calculated for various realistic hadron collider scenarios. The main characteristics of photon-photon processes at relativistic heavy-ion colliders are established and compared to the corresponding…

Nuclear Theory · Physics 2016-09-08 Kai Hencken , Dirk Trautmann , Gerhard Baur

Effective photon-photon luminosities are calculated for various realistic hadron collider scenarios. The main characteristics of photon-photon processes at relativistic heavy-ion colliders are established and compared to the corresponding…

Nuclear Theory · Physics 2009-10-28 Kai Hencken , Dirk Trautmann , Gerhard Baur

Events with tagged photons in the process of electron-positron annihilation into hadrons are considered. The initial state radiation is suggested to scan the hadronic cross section with the energy. QED radiative corrections are taken into…

High Energy Physics - Phenomenology · Physics 2010-02-03 A. B. Arbuzov , E. A. Kuraev , N. P. Merenkov , L. Trentadue

High intensity back-scattered laser beams will allow the efficient conversion of a substantial fraction of the incident lepton energy into high energy photons, thus significantly extending the physics capabilities of an electron-electron or…

High Energy Physics - Phenomenology · Physics 2009-09-11 S. J. Brodsky

Motivated by experimental data at large momentum transfer we update the analysis of the two-photon exchange effect in the electron-nucleon scattering using the effective field theory formalism. Our approach is suitable for describing the…

High Energy Physics - Phenomenology · Physics 2024-12-13 Nikolay Kivel

We reexamine the improved effective vector boson approximation which is based on two-vector-boson luminosities $\mathrm{\mathbf{L}}_{\rm pol}$ for the computation of weak gauge-boson hard scattering subprocesses $V_1 V_2\to {\cal W}$ in…

High Energy Physics - Phenomenology · Physics 2016-04-06 Werner Bernreuther , Long Chen

In this note we address the issue of measurability of the hadronic cross-sections at a future photon collider as well as for the two-photon processes at a future high energy linear $e^+e^-$ collider. We extend, to higher energy, our…

High Energy Physics - Phenomenology · Physics 2011-07-19 R. M. Godbole , A. De Roeck , A. Grau , G. Pancheri
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