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The interaction of charged particles and photons with intense electromagnetic fields gives rise to multi-photon Compton and Breit-Wheeler processes. These are usually described in the framework of the external field approximation, where the…

High Energy Physics - Phenomenology · Physics 2017-04-19 D. Seipt , T. Heinzl , M. Marklund , S. S. Bulanov

This paper presents a measurement of the triple-differential cross section for the Drell--Yan process $Z/\gamma^*\rightarrow \ell^+\ell^-$ where $\ell$ is an electron or a muon. The measurement is performed for invariant masses of the…

High Energy Physics - Experiment · Physics 2018-02-12 ATLAS Collaboration

The measurement of the magnetic field created in high-energy heavy-ion collisions is challenging, due the the fact that the magnetic field decays so drastically that in a thermalized quark-gluon plasma the field strength becomes rather…

Nuclear Theory · Physics 2024-06-17 Minghua Wei , Li Yan

We present the analytic computation of leading high-energy logarithms of the inclusive Drell-Yan and vector boson production cross-section. We also study the phenomenological relevance of the high-energy corrections for Drell-Yan processes…

High Energy Physics - Phenomenology · Physics 2009-06-26 Simone Marzani , Richard D. Ball

Partonic interpretation of high-energy reactions is known to depend on a reference frame. Particularly, in the rest frame of the target Drell-Yan process looks like freeing of the projectile lepton-antilepton fluctuation, rather than q+qbar…

High Energy Physics - Phenomenology · Physics 2009-10-31 B. Z. Kopeliovich

By means of two different parametrizations of quark energy loss and the nuclear parton distributions determined only with lepton-nuclear deep inelastic scattering experimental data, a leading order phenomenological analysis is performed on…

High Energy Physics - Phenomenology · Physics 2009-12-31 C. G. Duan , N. Liu , G. L. Li

We have calculated the electromagnetic spectral function (SF) vis-\`{a}-vis the dilepton rate (DR) by evaluating the one-loop photon polarisation tensor for a strongly magnetised hot and dense medium. The calculation is performed in the…

High Energy Physics - Phenomenology · Physics 2019-05-29 Chowdhury Aminul Islam , Aritra Bandyopadhyay , Pradip K. Roy , Sourav Sarkar

This paper explores the annihilation process of an electron-positron pair into a heavier lepton-antilepton pair, taking into account the presence of an external classical magnetic field. Additionally, it investigates corrections arising…

High Energy Physics - Phenomenology · Physics 2024-09-02 D. S. Cabral , A. F. Santos

The Standard Model extensions with vector-like states which have either zero hypercharge or zero weak isospin are rather poorly constrained by the electroweak precision measurements. Such new states would however modify the running of the…

High Energy Physics - Phenomenology · Physics 2017-05-23 Christian Gross , Oleg Lebedev , Jose Miguel No

We consider neutral- and charged-current Drell Yan lepton-pair production at hadron colliders, and include dominant classes of electroweak and mixed QCD-electroweak corrections to all orders in perturbation theory. The accurate description…

High Energy Physics - Phenomenology · Physics 2024-04-24 Luca Buonocore , Luca Rottoli , Paolo Torrielli

We report on the first complete computation of the mixed QCD$-$electroweak (EW) corrections to the neutral-current Drell$-$Yan process. Superseding previously applied approximations, our calculation provides the first result at this order…

High Energy Physics - Phenomenology · Physics 2022-01-19 Roberto Bonciani , Luca Buonocore , Massimiliano Grazzini , Stefan Kallweit , Narayan Rana , Francesco Tramontano , Alessandro Vicini

We show that the observation of the Drell-Yan production of low-mass lepton-pairs (M < 20 GeV) at high rapidities (Y > 3) at the LHC can make a direct measurement of parton distribution functions (PDFs) in the low x region, x < 10^{-4}. We…

High Energy Physics - Phenomenology · Physics 2015-06-12 E. G. de Oliveira , A. D. Martin , M. G. Ryskin

We estimate the power corrections (infrared renormalon contributions) to the coefficient functions for the differential Drell-Yan cross-section $d^2\sigma/dQ^2dy$, where $Q^2$ is the mass squared and $y$ the rapidity of the produced lepton…

High Energy Physics - Phenomenology · Physics 2010-02-03 Mrinal Dasgupta

The process of the photon decay into the neutrino - antineutrino pair in a magnetic field is investigated. The amplitude and the probability are analysed in the limits of relatively small and strong fields. The probability is suppressed by…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. V. Kuznetsov , N. V. Mikheev , L. A. Vassilevskaya

Measurements of neutral current Drell-Yan production at large invariant dilepton masses can be used to test the energy scale dependence (running) of the electroweak mixing angle. In this work, we make use of a novel implementation of the…

High Energy Physics - Phenomenology · Physics 2024-03-12 Simone Amoroso , Mauro Chiesa , Clara Lavinia Del Pio , Katerina Lipka , Fulvio Piccinini , Federico Vazzoler , Alessandro Vicini

We show that massive lepton-pair production, the Drell-Yan process, should be a good source of independent constraints on the polarized gluon density, free from the experimental and theoretical complications of photon isolation that beset…

High Energy Physics - Phenomenology · Physics 2014-11-17 Edmond L. Berger , Lionel E. Gordon , Michael Klasen

At high energies, Drell-Yan (DY) dilepton production viewed in the target rest frame should be interpreted as bremsstrahlung and can be expressed in terms of the same color dipole cross section as DIS. We compute DY cross sections on a…

High Energy Physics - Phenomenology · Physics 2009-10-31 B. Z. Kopeliovich , J. Raufeisen , A. V. Tarasov

In the resummation of collinear gluons emitted together with active partons from the hadrons in the Drell-Yan process (DY) effects of color entanglement become important when the transverse directions are taken into account. It is then no…

High Energy Physics - Phenomenology · Physics 2014-03-12 M. G. A. Buffing , P. J. Mulders

We discuss kinematical correlations between charged leptons from semileptonic decays of open charm/bottom, leptons produced in the Drell-Yan mechanism as well as some other mechanisms not included so far in the literature in proton-proton…

High Energy Physics - Phenomenology · Physics 2011-04-04 Rafal Maciula , Antoni Szczurek , Gabriela Slipek

We compute for the first time the lepton-pair rapidity distribution in the photon-mediated Drell-Yan process to next-to-next-to-next-to-leading order (N$^3$LO) in QCD. The calculation is based on the qT-subtraction method, suitably extended…

High Energy Physics - Phenomenology · Physics 2022-02-04 Xuan Chen , Thomas Gehrmann , Nigel Glover , Alexander Huss , Tong-Zhi Yang , Hua Xing Zhu
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