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The bound-free electron-positron pair production is considered for relativistic heavy ion collisions. In particular, cross sections are calculated for the pair production with the simultaneous capture of the electron into the 1s ground…

Nuclear Theory · Physics 2009-07-31 M. Y. Sengul , M. C. Guclu , S. Fritzsche

We present a theoretical study of a double lepton pair production in ultra--relativistic collision between two bare ions. Special emphasis is placed to processes in which creation of (at least one) $e^+ e^-$ pair is accompanied by the…

High Energy Physics - Phenomenology · Physics 2015-06-18 A. N. Artemyev , V. G. Serbo , A. Surzhykov

Results are presented for simulations of electron-positron pair production in relativistic heavy-ion collisions leading to electron capture and positron ejection. We apply a two-center relativistic continuum distorted-wave model to…

Atomic Physics · Physics 2016-09-08 R. J. S. Lee , J. V. Mullan , J. F. McCann , D. S. F. Crothers

A theoretical investigation of the bound-free electron-positron pair production in relativistic heavy ion collisions is presented. Special attention is paid to the positrons emitted under large angles with respect to the beam direction. The…

High Energy Physics - Phenomenology · Physics 2012-04-04 A. N. Artemyev , U. D. Jentschura , V. G. Serbo , A. Surzhykov

We calculate the cross sections for the production of one and more electron-positron pairs due to the strong electromagnetic fields in relativistic heavy ion collisions. Using the generating functional of fermions in an external field we…

Nuclear Theory · Physics 2009-10-30 Adrian Alscher , Kai Hencken , Dirk Trautmann , Gerhard Baur

The STAR collaboration at RHIC is measuring the production of electron-positron pairs at small impact parameters, larger than but already close to the range, where the ions interact strongly with each other. We calculate the total cross…

Nuclear Theory · Physics 2009-11-10 Kai Hencken , Gerhard Baur , Dirk Trautmann

Ultra-relativistic peripheral collisions of heavy ions at LHC can produce copies of numbers of lepton pairs via the two-photon process. Since the energy of the heavy ions is so high, multi-pair production cross-sections of the light leptons…

High Energy Physics - Phenomenology · Physics 2020-07-15 Sevgi Karadağ , Mehmet Cem Güçlü

We study the bound-free electron-positron pair production in relativistic heavy ion collisions to different bound states in a full Plane Wave Born Approximation (PWBA) calculation. Exact Dirac wave functions are used for both the bound…

Nuclear Theory · Physics 2009-11-06 Helmar Meier , Zlatko Halabuka , Kai Hencken , Dirk Trautmann , Gerhard Baur

Electron-positron pair production in low-energy collisions of heavy nuclei is considered beyond the monopole approximation. The calculation method is based on the numerical solving of the time-dependent Dirac equation with the full…

Atomic Physics · Physics 2019-08-20 I. A. Maltsev , V. M. Shabaev , R. V. Popov , Y. S. Kozhedub , G. Plunien , X. Ma , Th. Stöhlker

Electron-positron pair creation by multiphoton absorption in the collision of a relativistic electron with a strong laser beam is calculated within laser-dressed quantum electrodynamics. Total production rates, positron spectra, and…

Atomic Physics · Physics 2014-11-20 Huayu Hu , Carsten Müller , Christoph H. Keitel

The production of electron-positron pairs with the capture of the electron in an atomic orbital is investigated for the conditions of the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider LHC). Dirac wave functions for…

Nuclear Theory · Physics 2009-11-06 C. A. Bertulani , D. S. Dolci

Exact calculations of the electron-positron pair production by a single photon in the Coulomb field of a nucleus with simultaneous capture of the electron into the K-shell are discussed for different nuclear charges. Using the equivalent…

Nuclear Theory · Physics 2008-11-26 Andreas Aste

We study higher-order effects in the electromagnetic production of electron-positron pairs in relativistic heavy ion collisions. Treating the field of the heavy ions as an external field and neglecting the interaction among electrons and…

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

The STAR collaboration has observed an excess production of electron-positron pairs which have transverse momenta pperp < 150 MeV/c in peripheral gold-gold and uranium-uranium collisions. ALICE has also reported on an excess of mu mu pairs…

High Energy Physics - Phenomenology · Physics 2023-07-26 Mehmet Cem Güçlü , Melek Yılmaz Şengül

In recent years, a large number of papers have appeared that dealt with $\EPEM$ pair production in heavy ion collisions at high energies. To a large extent these studies were motivated by the existence of relativistic heavy ion accelerators…

Nuclear Theory · Physics 2008-11-26 Gerhard Baur , Kai Hencken , Dirk Trautmann

In the framework of QED we evaluate the cross section for electron-positron pair production by a single photon in the presence of the external Aharonov-Bohm potential in first order of perturbation theory. We analyse energy, angular and…

High Energy Physics - Theory · Physics 2009-10-30 V. D. Skarzhinsky , J. Audretsch , Ulf. Jasper

The magnificent development of strong X-ray lasers motivates the advancement of pair production process studies into higher laser frequency region. In this paper, a resonant electron-positron pair production process with the absorption of…

Atomic Physics · Physics 2015-06-17 Huayu Hu , Jie Huang

Electron-positron pair production is considered in the relativistic collision of a nucleus and an anti-nucleus, in which both leptons are created in bound states of the corresponding nucleus-lepton system. Compared to free and bound-free…

Atomic Physics · Physics 2014-11-20 A. B. Voitkiv , B. Najjari , A. Di Piazza

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

We present first measurable predictions for electromagnetic (two-photon) double scattering production of two positron-electron pairs in ultraperipheral heavy-ion collisions at LHC. Measureable cross sections are obtained with realistic cuts…

Nuclear Theory · Physics 2016-11-09 Mariola Klusek-Gawenda , Antoni Szczurek
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