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相关论文: Combining initial-state resummation with fixed-ord…

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We combine the next-to-next-to-leading order (NNLO) QCD corrections to lepton-pair production through the Drell-Yan mechanism with the next-to-leading order (NLO) electroweak corrections within the framework of the FEWZ simulation code.…

高能物理 - 唯象学 · 物理学 2013-05-30 Ye Li , Frank Petriello

We investigate if the recent mass resonance excesses seen around 95 GeV at the Large Hadron Collider (LHC) can be reconciled with a first-order electroweak phase transition. Performing the first large-scale parameter scan of the Type I Two…

高能物理 - 唯象学 · 物理学 2026-03-31 Ansh Bhatnagar , Djuna Croon , Philipp Schicho

In processes taking place at energies much higher than the weak scale, electroweak corrections can be taken into account by using electroweak evolution equations, that are analogous to the DGLAP equations in QCD. We show that weak isospin…

高能物理 - 唯象学 · 物理学 2024-03-26 Paolo Ciafaloni , Giampaolo Co' , Dimitri Colferai , Denis Comelli

We study the electroweak phase transition in three scalar extension models beyond the Standard Model. Assuming new scalars are decoupled at some heavy scale, we use the covariant derivative expansion method to derive all of the dimension-6…

高能物理 - 唯象学 · 物理学 2018-04-10 Qing-Hong Cao , Fa Peng Huang , Ke-Pan Xie , Xinmin Zhang

We discuss the potential of a $0.5\hskip 2pt TeV$ linear collider to explore manifestations of extended (or alternative) electroweak models of current interest, through measurements of the reaction $e^+e^-\to W^+W^-$ with both initial and…

高能物理 - 唯象学 · 物理学 2016-09-01 A. A. Babich , A. A. Pankov , N. Paver

We go beyond the Standard Model guided by presymmetry, the discrete electroweak quark-lepton symmetry hidden by topological effects which explain quark fractional charges as in condense matter physics. Partners of the particles of the…

高能物理 - 唯象学 · 物理学 2015-05-14 Ernesto A. Matute

We study the feasibility of strong first-order electroweak phase transition (EWPT) in a degenerate-scalar scenario of a complex singlet extension of the Standard Model, in which a mass of an additional scalar is nearly degenerate with that…

高能物理 - 唯象学 · 物理学 2021-11-30 Gi-Chol Cho , Chikako Idegawa , Eibun Senaha

We present an effective Lagrangian parameterization describing scalar, vector, and axial-vector bound states, originating from a strong breaking of the electroweak symmetry, based on the global symmetry $SU(N)_L\otimes SU(N)_R$. In this…

高能物理 - 唯象学 · 物理学 2015-05-18 R. Casalbuoni , A. Deandrea , S. De Curtis , N. Di Bartolomeo , D. Dominici , F. Feruglio , R. Gatto

We explore the one-loop electroweak radiative corrections in the minimal $SU(5)$ and the no-scale flipped $SU(5)$ supergravity models via explicit calculation of vacuum polarization contributions to the $\epsilon_{1,2,3}$ parameters.…

高能物理 - 唯象学 · 物理学 2009-10-22 J. Lopez , D. V. Nanopoulos , G. Park , H. Pois , K. Yuan

Recent investigations of electroweak radiative corrections have revealed the importance of higher order contributions in high energy processes, where the size of typical corrections can exceed those associated with QCD considerably. Beyond…

高能物理 - 唯象学 · 物理学 2011-09-13 Michael Melles

We report on a calculation of the `mixed' strong and (purely) weak corrections through the order $\alpha_{\mathrm{S}}^2\alpha_{\mathrm{W}}$ to parton-parton processes in all possible channels at hadron colliders entering the single jet…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Moretti , M. R. Nolten , D. A. Ross

The O(alpha) electroweak radiative corrections to gamma gamma --> WW --> 4f within the electroweak Standard Model are calculated in double-pole approximation (DPA). Virtual corrections are treated in DPA, leading to a classification into…

高能物理 - 唯象学 · 物理学 2009-01-07 A. Bredenstein , S. Dittmaier , M. Roth

The lack of convergence of the convolution integrals appearing in next-to-leading-power (NLP) factorization theorems prevents the applications of existing methods to resum power-suppressed large logarithmic corrections in collider physics.…

高能物理 - 唯象学 · 物理学 2022-08-10 M. Beneke , M. Garny , S. Jaskiewicz , J. Strohm , R. Szafron , L. Vernazza , J. Wang

We present complete one-loop radiative corrections to the decay rate of a top quark into a charged Higgs boson and a bottom quark, and for the decay of a charged Higgs boson into leptons. The results are discussed in the framework of the…

高能物理 - 唯象学 · 物理学 2009-10-22 Andrzej Czarnecki

We describe the impact of the full one-loop electroweak terms of O(alpha_s alpha_EM^3) entering the electron-positron into three-jet cross-section from sqrt(s)=M_Z to TeV scale energies. We include both factorisable and non-factorisable…

高能物理 - 唯象学 · 物理学 2022-03-02 C. M. Carloni Calame , S. Moretti , F. Piccinini , D. A. Ross

We present a complete calculation of the electroweak O(alpha^3 alpha_s) corrections to three-jet production and related event-shape observables at electron--positron colliders. The Z-boson resonance is described within the complex-mass…

高能物理 - 唯象学 · 物理学 2014-11-20 Ansgar Denner , Stefan Dittmaier , Thomas Gehrmann , Christian Kurz

The last years have seen a great development in our understanding of particle physics at the weak scale. Precision electroweak observables have played a key role in this process and their values are consistent, within the Standard Model…

高能物理 - 唯象学 · 物理学 2008-11-26 Debajyoti Choudhury , Tim M. P. Tait , C. E. M. Wagner

We present next-to-leading order (NLO) predictions including QCD and electroweak (EW) corrections for the production and decay of off-shell electroweak vector bosons in association with up to two jets at the 13 TeV LHC. All possible…

高能物理 - 唯象学 · 物理学 2016-05-04 Stefan Kallweit , Jonas M. Lindert , Stefano Pozzorini , Marek Schönherr , Philipp Maierhöfer

We make predictions for the t-differential cross section of exclusive vector meson production (EVMP) in electron-ion collisions, with the aim of comparing DGLAP evolution to CGC models. In the current picture for the high-energy nucleus,…

核理论 · 物理学 2015-10-28 G. S. Jackson , W. A. Horowitz

We study phenomenological consequences of the strong first-order electroweak phase transition in an extension of the standard model with an inert doublet and vector-like leptons motivated by the muon $g-2$ anomaly and dark matter. We find…

高能物理 - 唯象学 · 物理学 2019-08-21 Fa Peng Huang , Eibun Senaha