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Related papers: Complete one--loop corrections to e+e- -> sf_i sf_…

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Recent results for the asymptotic behavior of fermion scattering amplitudes in the Sudakov limit are presented including next-to-leading logarithmic corrections. These are used for the analysis of the dominant electroweak corrections to the…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. H. Kühn , A. A. Penin , V. A. Smirnov

We calculate the full one-loop electroweak (FEW) corrections to $H^-\to\widetilde{\chi}^-_1\widetilde{\chi}^0_i$ in the minimal supersymmetric standard model (MSSM), and compare with the leading order (LO) corrections including the loops of…

High Energy Physics - Phenomenology · Physics 2009-11-11 Zhao Li , Chong Sheng Li , Qiang Li , Li Lin Yang , Jun Zhao

We evaluate the supersymmetric QCD corrections to single top quark production via $q \bar q'\to t \bar b$ at the Fermilab Tevatron in the minimal supersymmetric model. We find that within the allowed range of squark and gluino masses the…

High Energy Physics - Phenomenology · Physics 2016-08-25 Chong Sheng Li , Robert J. Oakes , Jin Min Yang , Hong-Yi Zhou

We have computed the complete one-loop electroweak effects in the MSSM for single top (and single antitop) production in the $t$-channel at hadron colliders, generalizing a previous analysis performed for the dominant $dt$ final state and…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Beccaria , C. M. Carloni Calame , G. Macorini , E. Mirabella , F. Piccinini , F. M. Renard , C. Verzegnassi

We use the quantum corrected chargino production cross section, including information on the beam polarization and chargino helicities, to estimate the precision achievable at a 1 TeV, 500 ${\mathrm fb}^{-1}$ Linear Collider on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. Baer , M. A. Diaz , M. A. Rivera , D. A. Ross

We have calculated the $O(\alpha_{ew} M_t^2/M_W^2)$ supersymmetric electroweak corrections to single top quark production via $q\bar q' \to t\bar b$ at the Fermilab Tevatron in the minimal supersymmetric model. The supersymmetric…

High Energy Physics - Phenomenology · Physics 2009-10-30 Chong Sheng Li , Robert J. Oakes , Jin Min Yang

We present the results of a complete analysis of the one loop electroweak corrections to $e^-e^+\to\gamma\gamma, ~Z\gamma, ~ZZ$ in the Standard (SM) and the Minimal Supersymmetric Standard Model (MSSM). A special emphasis is put on the high…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. J. Gounaris , J. Layssac , F. M. Renard

We study the effects of O(alpha_s) supersymmetric QCD (SQCD) corrections on the total production rate and kinematic distributions of polarized and unpolarized top-pair production in pp and p anti-p collisions. At the Fermilab Tevatron p…

High Energy Physics - Phenomenology · Physics 2008-11-26 Stefan Berge , Wolfgang Hollik , Wolf M. Mosle , Doreen Wackeroth

This paper presents the high-precision theoretical predictions for $e^+e^- \to l^-l^+$ scattering. Calculations are performed using the {\tt SANC} system. They take into account complete one-loop electroweak radiative corrections as well as…

High Energy Physics - Phenomenology · Physics 2020-09-02 S. Bondarenko , Ya. Dydyshka , L. Kalinovskaya , R. Sadykov , V. Yermolchyk

We present the calculations of the supersymmetric QCD corrections to the total cross sections for single top production at the Fermilab Tevatron and the CERN Large Hadron Collider in the minimal supersymmetric standard model. Our results…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jia Jun Zhang , Chong Sheng Li , Zhao Li , Li Lin Yang

For the search for charginos and neutralinos in the Minimal Supersymmetric Standard Model (MSSM) as well as for future precision analyses of these particles an accurate knowledge of their production and decay properties is mandatory. We…

High Energy Physics - Phenomenology · Physics 2017-10-25 S. Heinemeyer , C. Schappacher

This paper is the completion of an earlier work arXiv:1207.4867 which involves the derivation of oblique corrections in the MSSM at one loop. In terms of the two-component spinor formalism, which is new in compared with those used in the…

High Energy Physics - Phenomenology · Physics 2012-12-27 Yao Yu , Sibo Zheng

We consider the high energy behaviour of the amplitudes for pair production of charged leptons, quarks, Higgs bosons, sleptons, squarks and charginos at lepton colliders. We give the general expressions of the leading quadratic and…

High Energy Physics - Phenomenology · Physics 2014-11-17 Matteo Beccaria , Michael Melles , Fernand M. Renard , Salvatore Trimarchi , Claudio Verzegnassi

We study radiative corrections to third generation scalar fermions into gauge bosons $Z$ and $W^\pm$. We include both SUSY-QCD, QED and full electroweak corrections. It is found that the electroweak corrections can be of the same order as…

High Energy Physics - Phenomenology · Physics 2008-11-26 Abdesslam Arhrib , Rachid Benbrik

We present results on the full one-loop electroweak radiative corrections to the squark decay partial widths into charginos and neutralinos. We show the renormalization framework, and present numerical results for the third squark family.…

High Energy Physics - Phenomenology · Physics 2011-01-27 Jaume Guasch , Wolfgang Hollik , Joan Sola

We have calculated the two-loop strong interaction corrections to the neutralino pole masses in the DRbar'-scheme in the Minimal Supersymmetric Standard Model (MSSM). We have performed a detailed numerical analysis for a particular point in…

High Energy Physics - Phenomenology · Physics 2010-10-27 R. Schofbeck , H. Eberl

We calculate the cross sections for the neutral Higgs-boson production at e+e- colliders in the Minimal Supersymmetric Standard Model (MSSM) using the Feynman-diagrammatic approach and the on-shell renormalization scheme. We incorporate the…

High Energy Physics - Phenomenology · Physics 2009-01-07 S. Heinemeyer , W. Hollik , J. Rosiek , G. Weiglein

We discuss the ${\cal O}(\alpha_s)$ supersymmetric QCD corrections to neutralino-stop coannihilation into a top quark and a gluon in the Minimal Supersymmetric Standard Model (MSSM). This particular channel can be numerically important in…

High Energy Physics - Phenomenology · Physics 2015-03-05 J. Harz , B. Herrmann , M. Klasen , K. Kovarik

We calculate the QCD radiative corrections to the production of supersymmetric scalar partners of quarks in e+e- annihilation. We include both the standard gluonic corrections and the genuine supersymmetric QCD corrections due to…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Arhrib , M. Capdequi-Peyranere , A. Djouadi

In this work, the radiative corrections to the production of a light Higgs boson ($h^0$) with a pair of lightest neutralinos (${\tilde{\chi}}_1^0$) in $e^+ e^-$ collisions within MSSM are presented, including the on-shell renormalization…

High Energy Physics - Phenomenology · Physics 2016-12-22 S. M. Seif , T. A. Azim