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相关论文: CP-odd effects at NLO in SMEFT $WH$ and $ZH$ produ…

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We investigate the NLO QCD and the CP-violation effects in $t\bar{t}Z^0$ production at the Large Hadron Collider(LHC) in the minimal supersymmetric standard model(MSSM). Our calculation shows that the total NLO QCD correction in the…

高能物理 - 唯象学 · 物理学 2010-07-21 Liu Ning , Guo Lei , Ma Wen-Gan , Zhang Ren-You , Han Liang

We investigate the role of anomalous gauge boson and fermion couplings on the production of $WZ$ and $W^+W^-$ pairs at the LHC to NLO QCD in the Standard Model effective field theory, including dimension-6 operators. Our results are…

高能物理 - 唯象学 · 物理学 2020-01-01 Julien Baglio , Sally Dawson , Samuel Homiller

The single Higgs production in neutral-current (NC) and charged-current (CC) processes at an electron-proton ($ep$) collider is a useful channel to probe new physics effects in the Higgs coupling to vector boson ($HVV$). In this context,…

高能物理 - 唯象学 · 物理学 2025-09-16 Biswajit Das , Pramod Sharma , Ambresh Shivaji

Properties of the Higgs boson ($H$) at current and future particle colliders are crucial to explore new physics beyond the standard model. In particular, experimental and theoretical outlooks at future colliders drive interest in Higgs to…

高能物理 - 唯象学 · 物理学 2025-01-29 Pramod Sharma , Biswajit Das , Ambresh Shivaji

Recent discrepancies between theoretical predictions and experimental data in multi-lepton plus $b$-jets analyses for the $t\bar{t}W^\pm$ process, as reported by the ATLAS collaboration, have indicated that more accurate theoretical…

高能物理 - 唯象学 · 物理学 2021-08-04 Giuseppe Bevilacqua , Huan-Yu Bi , Heribertus Bayu Hartanto , Manfred Kraus , Jasmina Nasufi , Malgorzata Worek

We study the impact of anomalous gauge boson and fermion couplings on the production of $W^+W^-$ pairs at the LHC. Helicity amplitudes are presented separately to demonstrate the sources of new physics contributions and the impact of QCD…

高能物理 - 唯象学 · 物理学 2017-10-18 Julien Baglio , Sally Dawson , Ian M. Lewis

We investigate CP-violating effects in electroweak interactions at future high-energy muon colliders within the Standard Model Effective Field Theory (SMEFT) framework. Focusing on four dimension-six CP-odd operators -- $…

高能物理 - 唯象学 · 物理学 2026-03-02 Qing-Hong Cao , Jian-Nan Ding , Yandong Liu , Jin-Long Yuan

Precision tests of the Standard Model (SM) require not only accurate experiments, but also precise and reliable theoretical predictions. Triple vector boson production provides a unique opportunity to investigate the quartic gauge couplings…

高能物理 - 唯象学 · 物理学 2016-11-08 Shen Yong-Bai , Zhang Ren-You , Ma Wen-Gan , Li Xiao-Zhou , Zhang Yu , Guo Lei

Higgs pair production through gluon fusion is an important process at the LHC to test the dynamics underlying electroweak symmetry breaking. Higgs sectors beyond the Standard Model (SM) can substantially modify this cross section through…

高能物理 - 唯象学 · 物理学 2018-03-14 R. Grober , M. Muhlleitner , M. Spira

T-odd correlations in $Wj$ production at the LHC have been studied recently as a way to measure a phase produced by QCD at NLO by Frederix et. al. That study found that the induced asymmetry could be observed with 20 fb$^{-1}$ of 8 TeV…

高能物理 - 唯象学 · 物理学 2017-10-18 Hai Tao Li , German Valencia

We present the calculations of the next-to-leading order (NLO) QCD corrections to the inclusive total cross sections for the associated production of the $W^{\pm}H^{\mp}$ through $b\bar{b}$ annihilation in the Minimal Supersymmetric…

高能物理 - 唯象学 · 物理学 2008-11-26 Jun Gao , Chong Sheng Li , Zhao Li

Scalar and pseudo-scalar resonances decaying to top quarks are common predictions in several scenarios beyond the standard model (SM) and are extensively searched for by LHC experiments. Challenges on the experimental side require…

高能物理 - 唯象学 · 物理学 2017-11-28 Diogo Buarque Franzosi , Eleni Vryonidou , Cen Zhang

The top-pair production in association with a $Z^0$-boson at a photon-photon collider is an important process in probing the coupling between top-quarks and vector boson and discovering the signature of possible new physics. We describe the…

高能物理 - 唯象学 · 物理学 2009-08-11 Dong Chuan-Fei , Ma Wen-Gan , Zhang Ren-You , Guo Lei , Wang Shao-Ming

We present results of a computation of NLO QCD corrections to the production of an off-shell top--antitop pair in association with an off-shell $\text{W}^+$ boson in proton--proton collisions. As the calculation is based on the full matrix…

高能物理 - 唯象学 · 物理学 2021-05-21 Ansgar Denner , Giovanni Pelliccioli

The process $p\,p\hskip-7pt\hbox{$^{^{(\!-\!)}}$} \rightarrow W^{+} W^{-} + X \rightarrow \ell^+_1 \nu_1 \ell^-_2 \bar \nu_2 + X$ is calculated to ${\cal O}(\alpha_s)$ for general $C$ and $P$ conserving $WWV$ couplings ($V=\gamma,\, Z$).…

高能物理 - 唯象学 · 物理学 2009-10-28 U. Baur , T. Han , J. Ohnemus

Measuring the polarization of electroweak bosons at the LHC allows for important tests of the electroweak-symmetry-breaking mechanism that is realized in nature. Therefore, precise Standard Model predictions are needed for the production of…

高能物理 - 唯象学 · 物理学 2021-11-03 Ansgar Denner , Giovanni Pelliccioli

We discuss how to construct genuine CP-odd observables at the LHC. We classify the observables according to the even and odd properties under the naive T-transformation (\hat{T}). There are two classes of observables of our interests:…

高能物理 - 唯象学 · 物理学 2010-12-28 Tao Han , Yingchuan Li

In this paper we calculate the next-to-leading order (NLO) QCD $[{\cal O}(\alpha_s \alpha^3)]$ and electroweak (EW) $[{\cal O}(\alpha^4)]$ corrections to the $WWW$ production at the LHC and deal with the subsequent leptonic decays from $W$…

高能物理 - 唯象学 · 物理学 2017-07-13 Shen Yong-Bai , Zhang Ren-You , Ma Wen-Gan , Li Xiao-Zhou , Guo Lei

We study QCD corrections for the associated production of a single top quark and a photon ($tq\gamma$ production) at hadron colliders. We calculate the NLO cross section at LHC and future collider energies for a variety of kinematical cuts,…

高能物理 - 唯象学 · 物理学 2022-08-08 Nikolaos Kidonakis , Nodoka Yamanaka

We study the production of a W boson in association with a c-jet at the LHC. We calculate, for the first time, the complete set of NNLO QCD corrections to the dominant CKM-diagonal contribution to this process. Both signatures, ${\rm p}{\rm…

高能物理 - 唯象学 · 物理学 2021-08-09 Michał Czakon , Alexander Mitov , Mathieu Pellen , Rene Poncelet
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