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Related papers: Elektroweak one-loop corrections for e^+e^- annihi…

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We review the status of electroweak radiative corrections to top-pair production at a Linear Collider well above the production threshold. We describe the Fortran package topfit and present numerical results at sqrt(s) = 500 GeV, 1 TeV, and…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Fleischer , A. Leike , T. Riemann , A. Werthenbach

A new framework to study electroweak physics at one-loop level in general ${\rm SU(2)_L \times U(1)_Y}$ theories is introduced. It separates the 1-loop corrections into two pieces: process specific ones from vertex and box contributions and…

High Energy Physics - Phenomenology · Physics 2008-02-03 K. Hagiwara , S. Matsumoto , C. S. Kim

For the first time the next-to-leading-order electroweak corrections to the full off-shell production of two top quarks that decay leptonically are presented. This calculation includes all off-shell, non-resonant, and interference effects…

High Energy Physics - Phenomenology · Physics 2017-02-15 Ansgar Denner , Mathieu Pellen

The complete O(\alpha) corrections including soft-photon bremsstrahlung to the process e^+ e^- -> W^+ W^- in the MSSM are calculated for on-shell W bosons. The relative difference between the MSSM and Standard Model corrections is generally…

High Energy Physics - Phenomenology · Physics 2009-10-31 T. Hahn

We compute the full one-loop radiative corrections (including both weak and QED corrections) for two processes $e^{+}e^{-}\to Z h^0,H^0 A^{0}$ in the Inert Higgs Doublet model (IHDM). Up to $O(\alpha_{w})$ and $O(\alpha_{em})$ order, we use…

High Energy Physics - Phenomenology · Physics 2021-06-02 Hamza Abouabid , Abdesslam Arhrib , Rachid Benbrik , Jaouad El Falaki , Bin Gong , Wenhai Xie , Qi-Shu Yan

We present the results of the complete electroweak loop corrections to the process $ gg \to gH $ at the Large Hadron Collider. The electroweak corrections to the total cross section are found to be approximately $ +4\% $. At the…

High Energy Physics - Phenomenology · Physics 2025-08-05 Huan-Yu Bi , Yan-Qing Ma , Dao-Ming Mu

The full $\mathcal{O}(\alpha)$ electroweak radiative corrections to $t \bar{t} \gamma$ and $e^-e^+\gamma$ productions at the International Linear Collider (ILC) are presented in this paper. The computation is performed with the help of…

High Energy Physics - Phenomenology · Physics 2014-03-27 P. H. Khiem , Y. Kurihara , J. Fujimoto , M. Igarashi , T. Ishikawa , T. Kaneko , K. Kato , N. Nakazawa , Y. Shimizu , K. Tobimatsu , T. Ueda , J. A. M. Vermaseren , Y. Yasui

By using the GRACE-Loop system, we calculate the full $\mathcal{O}(\alpha)$ electroweak radiative corrections to the process $e^+e^- \rightarrow e^+e^- \gamma$, which is important for future investigations at the International Linear…

High Energy Physics - Phenomenology · Physics 2014-12-08 P. H. Khiem , Y. Kurihara , J. Fujimoto , T. Ishikawa , T. Kaneko , K. Kato , N. Nakazawa , Y. Shimizu , T. Ueda , J. A. M. Vermaseren , Y. Yasui

To match the precision of present and future measurements of W-boson production at hadron colliders, electroweak radiative corrections must be included in the theory predictions. In this paper we consider their effect on the transverse…

High Energy Physics - Phenomenology · Physics 2008-11-26 Johann H. Kuhn , A. Kulesza , S. Pozzorini , M. Schulze

Top-quark physics plays an important role at hadron colliders such as the Tevatron at Fermilab or the LHC at CERN. Given the planned precision at these colliders, precise theoretical predictions are required. In this paper we present the…

High Energy Physics - Phenomenology · Physics 2009-01-07 J. H. Kuhn , A. Scharf , P. Uwer

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 present the full order alpha electroweak radiative corrections to the double Higgs-strahlung process e+e- --> ZHH. The computation is performed with the help of GRACE-loop. After subtraction of the initial state QED radiative…

High Energy Physics - Phenomenology · Physics 2015-06-25 G. Belanger , F. Boudjema , J. Fujimoto , T. Ishikawa , T. Kaneko Y. Kurihara , K. Kato , Y. Shimizu

We present the full $\mathcal{O}(\alpha)$ electroweak radiative corrections to the process $e^+e^- \rightarrow t \bar{t} \gamma$ at the International Linear Collider (ILC). The computation is performed with the help of the GRACE-Loop…

High Energy Physics - Phenomenology · Physics 2013-05-02 P. H. Khiem , J. Fujimoto , T. Ishikawa , T. Kaneko , K. Kato , Y. Kurihara , Y. Shimizu , T. Ueda , J. A. M. Vermaseren , Y. Yasui

Radiative one-loop corrections to fermion pair production in $e^+e^-$ annihilation are calculated in the Minimal Supersymmetric Standard Model (MSSM). The size of the non-standard corrections is discussed for the process e^+e^- to mu^+mu^-…

High Energy Physics - Phenomenology · Physics 2009-10-31 W. Hollik , C. Schappacher

We compute analytically the complete electroweak two-loop corrections to the $B^0-{\bar B}^0$ mixing. These corrections fix the normalization of the electroweak coupling employed in the extraction of $|V_{td}|$ and reduce the theoretical…

High Energy Physics - Phenomenology · Physics 2009-10-31 P. Gambino , A. Kwiatkowski , N. Pott

The preceding experimental and theoretical results on the rare decay $\pi^0 \to e^+e^-$ are briefly summarized. Already computed two-loop QED corrections are reviewed and the bremsstrahlung contribution beyond the soft-photon approximation…

High Energy Physics - Phenomenology · Physics 2015-04-30 Tomas Husek , Karol Kampf , Jiri Novotny

We discuss the next to the leading order (NLO) electroweak radiative corrections to the $e^- e^+ \rightarrow f^- f^+ (\gamma)$ cross section asymmetry, for polarized and unpolarized beam scenario. The left-right and forward-backward…

High Energy Physics - Phenomenology · Physics 2017-04-26 A. Aleksejevs , S. Barkanova , V. Zykunov

In this paper we compute one-loop corrections to masses and couplings in the minimal supersymmetric standard model. We present explicit formulae for the complete corrections and a set of compact approximations which hold over the unified…

High Energy Physics - Phenomenology · Physics 2009-03-12 Damien M. Pierce , Jonathan A. Bagger , Konstantin T. Matchev , Ren-Jie Zhang

The top-quark mass can be determined with very high precision from a scan of the total $e^+e^-\to b\bar{b}W^+W^-X$ cross section near the top-pair production threshold. We present the full calculation of electroweak and non-resonant…

High Energy Physics - Phenomenology · Physics 2017-11-03 Martin Beneke , Andreas Maier , Thomas Rauh , Pedro Ruiz-Femenía

We show the impact of the electroweak, and in one instance the QCD, one-loop corrections on the relic density of dark matter in the MSSM which is provided by the lightest neutralino. We cover here some of the most important scenarii:…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. Baro , F. Boudjema , A. Semenov