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The complete set of electroweak O(alpha) corrections to the Drell--Yan-like production of W bosons is calculated and compared to an approximation provided by the leading term of an expansion about the W-resonance pole. All relevant formulae…

高能物理 - 唯象学 · 物理学 2009-09-25 Stefan Dittmaier , Michael Kramer

The LHC enters era of the Standard Model Z-boson couplings precise measurements, to match precision of LEP. The calculations of electroweak (EW) corrections in the Monte Carlo generators become of relevance. Precise predictions of Z-boson…

高能物理 - 唯象学 · 物理学 2019-07-02 E. Richter-Was , Z. Was

We present a calculation of the next-to-leading-order electroweak corrections to W+\gamma\ production, including the leptonic decay of the W boson and taking into account all off-shell effects of the W boson, where the finite width of the W…

高能物理 - 唯象学 · 物理学 2015-11-13 Ansgar Denner , Stefan Dittmaier , Markus Hecht , Christian Pasold

The cross section for $e^-e^- \to e^-e^-$ with arbitrary electron polarizations is calculated within the Electroweak Standard Model for energies large compared to the electron mass, including the complete virtual and soft-photonic…

高能物理 - 唯象学 · 物理学 2008-11-26 Ansgar Denner , Stefano Pozzorini

We calculate the one-loop electroweak corrections to e+e- to WWZ and e+e- to ZZZ and analyse their impacts on both the total cross section and some key distributions. These processes are important for the measurements of the quartic…

高能物理 - 唯象学 · 物理学 2010-04-27 Fawzi Boudjema , Le Duc Ninh , Sun Hao , Marcus M. Weber

Precise predictions for an $e^+e^-\rightarrow t\bar{t}$ cross-section are presented in the energy region from 400 GeV to 800 GeV. Cross-sections are estimated including the beam-polarization effects with full $\mathcal{O}(\alpha)$, and also…

高能物理 - 唯象学 · 物理学 2019-07-03 Junpei Fujimot , Yoshimasa Kurihara , Nhi M. U. Quach

Electroweak Sudakov logarithms at high energy, of the form alpha/sin^2 theta_W^n log^m s/M_{Z,W}^2, are summed using effective theory (EFT) methods. The exponentiation of Sudakov logarithms and factorization is discussed in the EFT…

高能物理 - 唯象学 · 物理学 2008-11-26 Jui-yu Chiu , Randall Kelley , Aneesh V. Manohar

Evidence is presented for the electroweak (EW) production of two jets (jj) in association with two Z bosons and constraints on anomalous quartic gauge couplings are set. The analysis is based on a data sample of proton-proton collisions at…

高能物理 - 实验 · 物理学 2020-12-18 CMS Collaboration

The foreseen luminosities for the next LHC runs will enable precise differential measurements of the associated production of top-antitop pairs with a W boson. Therefore, providing accurate theory predictions for this process is needed for…

高能物理 - 唯象学 · 物理学 2022-11-15 Ansgar Denner , Giovanni Pelliccioli

An alternative calculation of the lowest order electroweak radiative corrections to the single W-boson production in hadron-hadron collision in the framework of the quark parton model without any absorption of the collinear quark…

高能物理 - 唯象学 · 物理学 2007-05-23 I. Akushevich , A. Ilyichev , N. Shumeiko , V. Zykunov

We estimate production cross sections for 2-body resonances of the Electroweak Symmetry Breaking sector (in $W_LW_L$ and $Z_LZ_L$ rescattering) from $\gamma\gamma$ scattering. We employ unitarized Higgs Effective Field Theory amplitudes…

高能物理 - 唯象学 · 物理学 2018-11-14 Rafael L. Delgado , Antonio Dobado , Miguel Espada , Felipe J. Llanes-Estrada , Ivan Leon Merino

We consider W-boson scattering at high-energy e+ e- colliders and study one-loop logarithmic electroweak corrections within the Standard Model assuming a light Higgs boson. We present explicit analytical results for W+ W- -> W+ W-. Using…

高能物理 - 唯象学 · 物理学 2010-10-27 E. Accomando , A. Denner , S. Pozzorini

We discuss the impact of EW corrections on differential distributions in top-quark pair production at the LHC and future hadron colliders, focusing on the effects of initial-state photons. Performing a calculation at Next-to-Leading Order…

高能物理 - 唯象学 · 物理学 2016-09-19 Davide Pagani , Ioannis Tsinikos , Marco Zaro

Complete one-loop electroweak corrections to neutral current Drell-Yan process $p p \to \ell^+\ell^- X$ are presented for the case of longitudinal polarization of initial particles. Cross sections for longitudinally polarized protons allow…

高能物理 - 唯象学 · 物理学 2023-05-10 S. Bondarenko , Ya. Dydyshka , L. Kalinovskaya , R. Sadykov , V. Yermolchyk

Future lepton colliders will provide a powerful tool for making precision experiments at energies that will range typically between 500 GeV and 2 TeV. At such high energies, one loop electroweak corrections are bigger than one could naively…

高能物理 - 唯象学 · 物理学 2016-09-06 Paolo Ciafaloni

We present the dominant two-loop electroweak corrections to the partial decay widths to gluon jets and prompt photons of the neutral CP-odd Higgs boson A^0, with mass M_{A^0} < 2 M_W, in the two-Higgs-doublet model for low to intermediate…

高能物理 - 唯象学 · 物理学 2008-11-26 Joachim Brod , Frank Fugel , Bernd A. Kniehl

We calculate the total cross sections and probabilities of electromagnetic productions of electron, muon and tauon pair productions simultaneously. At the Large Hadron Collider (LHC), the available electromagnetic energy is sufficient to…

核理论 · 物理学 2017-11-01 Erkan Kurban , Mehmet Cem Guclu

Electroweak one-loop calculations for production of top-quark pairs at colliders are completed by providing the missing QED type contributions from real and virtual photons, where also effects from interference between QED and QCD…

高能物理 - 唯象学 · 物理学 2008-11-26 Wolfgang Hollik , Monika Kollar

We calculate the next-to-leading order electroweak corrections to the production of a photon pair in association with zero, one and two jets at the LHC. We use GoSam and Sherpa to obtain the results in a fully automated way. For a typical…

高能物理 - 唯象学 · 物理学 2017-12-06 Mauro Chiesa , Nicolas Greiner , Marek Schoenherr , Francesco Tramontano

Charged Higgs particles are a common feature of many extensions of the Standard Model. While its existence with masses up to the TeV scale can be probed at the Tevatron Run II and LHC hadron colliders, a precise determination of its…

高能物理 - 唯象学 · 物理学 2007-05-23 Jaume Guasch , Wolfgang Hollik , Arnd Kraft