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Radiative effects in semi-inclusive hadron leptoproduction of unpolarized particles are calculated within the leading order approximation. The contributions of the infrared-free sum of the effects of real and virtual photon emission as well…

High Energy Physics - Phenomenology · Physics 2024-04-30 Igor Akushevich , Alexander Ilyichev , Stanislav Srednyak

An approach to calculate radiative corrections to unpolarized cross section of semi-inclusive electroproduction is developed. An explicit formulae for the lowest order QED radiative correction are presented. Detailed numerical analysis is…

High Energy Physics - Phenomenology · Physics 2011-09-13 I. Akushevich , N. Shumeiko , A. Soroko

We calculate DIS cross section under kinematical requirements when a final hadron state is a single proton. The process in the lowest order is known as radiative tail from elastic peak. We take into account correction, coming from emission…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Akushevich , E. Kuraev , B. Shaikhatdenov

We calculate the next-to-leading order QCD corrections to the `direct' part of the spin-dependent cross section for single-inclusive charged-hadron photoproduction. This process could be studied experimentally in future polarized…

High Energy Physics - Phenomenology · Physics 2011-07-19 D. de Florian , W. Vogelsang

The contribution of the radiative tail from the quasielastic peak to low order radiative correction to deep inelastic scattering of polarized leptons by polarized $^3$He was calculated within the sum rules formalism and $y$-scaling…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Akushevich , D. Ryckbosch , N. Shumeiko , A. Tolkachev

The explicit exact analytical expressions for the lowest-order radiative corrections to the semi-inclusive deep inelastic scattering of the polarized particles are obtained in the most compact, covariant form convenient for the numerical…

High Energy Physics - Phenomenology · Physics 2019-09-24 Igor Akushevich , Alexander Ilyichev

We propose a factorized approach to QED radiative corrections for inclusive and semi-inclusive deep-inelastic scattering to systematically account for QED and QCD radiation contributions to both processes on equal footing. This is achieved…

High Energy Physics - Phenomenology · Physics 2021-12-01 Tianbo Liu , W. Melnitchouk , Jian-Wei Qiu , N. Sato

Radiative effects in the electroproduction of photons in polarized $ep$-scattering are calculated with the next-to-leading (NLO) accuracy. The contributions of loops and two photon emission were presented in analytical form. The covariant…

High Energy Physics - Phenomenology · Physics 2014-08-06 Igor Akushevich , Alexander Ilyichev , Nikolai M. Shumeiko

Improvement of the radiative correction scheme for the deep inelastic scattering on the heavy targets is discussed. Arguments that the contribution of the radiative tail from the elastic peak should be calculated without use of the Born…

High Energy Physics - Phenomenology · Physics 2009-10-28 Krzysztof Kurek

We calculate the so-called radiative tail for the three-particle light-cone distribution amplitudes (LCDAs) of the $\Lambda_b$ baryon, following from the short-distance expansion of the defining light-ray operators in heavy-quark effective…

High Energy Physics - Phenomenology · Physics 2025-05-06 Thorsten Feldmann , Daniel Vladimirov

We analyse in detail the QED corrections to the total decay width and the moments of the electron energy spectrum of the inclusive semi-leptonic $B \to X_c e \nu$ decay. Our calculation includes short-distance electroweak corrections, the…

High Energy Physics - Phenomenology · Physics 2025-02-04 Dante Bigi , Marzia Bordone , Paolo Gambino , Ulrich Haisch , Andrea Piccione

We present details of a calculation of the cross section for hadronic top-antitop production in next-to-leading order (NLO) QCD, including the decays of the top and antitop into bottom quarks and leptons. This calculation is based on matrix…

High Energy Physics - Phenomenology · Physics 2012-11-07 Ansgar Denner , Stefan Dittmaier , Stefan Kallweit , Stefano Pozzorini

We compute the order-$\as$ corrections to the total cross section and to jet rates for the process $\epem\to\epem +$ hadrons, where the hadrons are produced through crossed-channel quark exchange in the hard scattering of two off-shell…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Cacciari , V. Del Duca , S. Frixione , Z. Trocsanyi

QED radiative corrections have been calculated for leptonic and hadronic variables in parity-violating elastic ep scattering. For the first time, the calculation of the asymmetry in the elastic radiative tail is performed without the…

High Energy Physics - Phenomenology · Physics 2009-11-11 J. Arvieux , B. Collin , H. Guler , M. Morlet , S. Niccolai , S. Ong , J. Van de Wiele

The lowest order radiative corrections to the cross section and asymmetries measured in experiments on semi-inclusive deep inelastic scattering of polarized particles were calculated. Both exact and leading log expressions were presented…

High Energy Physics - Phenomenology · Physics 2023-10-30 I. Akushevich , H. Avakian , A. Ilyichev , S. Srednyak

The inclusive tau lepton hadronic decay is studied within Dispersive approach to QCD. The significance of effects due to hadronization is convincingly demonstrated. The approach on hand proves to be capable of describing experimental data…

High Energy Physics - Phenomenology · Physics 2013-04-03 A. V. Nesterenko

The COMPASS collaboration published precise data on production cross section of charged hadrons in lepton-hadron semi-inclusive deep inelastic scattering, showing almost an order of magnitude larger than next-to-leading order QCD…

High Energy Physics - Phenomenology · Physics 2020-01-15 Tianbo Liu , Jian-Wei Qiu

The semi-analytical approach to the model independent leptonic QED corrections to exclusive $\rho^0$ meson leptoproduction (i.e. electron and muon scattering experiments) is presented. The corrections to $\rho^0$ production at large $Q^2$…

High Energy Physics - Phenomenology · Physics 2016-08-15 Krzysztof Kurek

The ${\cal O}(\alpha)$ radiative corrections to the process $p\,p\hskip-7pt\hbox{$^{^{(\!-\!)}}$} \rightarrow \gamma^*, \, Z \rightarrow \ell^+ \ell^-$ ($\ell=e,\,\mu$) are calculated. Factorizing the collinear singularity associated with…

High Energy Physics - Phenomenology · Physics 2009-10-30 U. Baur , S. Keller , W. K. Sakumoto

We discuss the non-perturbative and the radiative corrections to inclusive B decays from the point of view known from QED corrections to high energy e^+ e^- processes. Here the leading contributions can be implemented through the so called…

High Energy Physics - Phenomenology · Physics 2009-10-31 Thomas Mannel , Stefan Recksiegel
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