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We study the process $pp \to Z(\ell^+ \ell^-)h(b\bar b)$ in the Standard Model Effective Field Theory (SMEFT) at high energies using subjet techniques to reconstruct the Higgs boson. We show that at high energies this process probes four…

高能物理 - 唯象学 · 物理学 2018-11-16 Shankha Banerjee , Christoph Englert , Rick S. Gupta , Michael Spannowsky

In this talk I attempt to survey some selected physics issues on radiative interference phenomena in the production of heavy unstable particles. A special emphasis is placed on the reactions $e^+e^- \rightarrow W^+W^- \rightarrow 4$ jets…

高能物理 - 唯象学 · 物理学 2011-03-02 Valery A. Khoze

Because the LHC is a proton-proton collider, sizable production of two positively charged W-bosons in association with two jets is possible. This process leads to a distinct signature of same sign high-pt leptons, missing energy and jets.…

高能物理 - 唯象学 · 物理学 2011-05-27 Tom Melia , Kirill Melnikov , Raoul Rontsch , Giulia Zanderighi

In electroweak-boson production processes with a jet veto, higher-order corrections are enhanced by logarithms of the veto scale over the invariant mass of the boson system. In this paper, we resum these Sudakov logarithms at…

高能物理 - 唯象学 · 物理学 2015-06-23 Thomas Becher , Rikkert Frederix , Matthias Neubert , Lorena Rothen

We present the first parton-level study of anomalous effects in triboson production in both fully and semi-leptonic channels in proton-proton collisions at 13 TeV at the Large Hadron Collider (LHC). The sensitivity to anomalies induced by a…

We perform a dedicated study of the four-fermion production process e- e+ -> mu- nubar_mu u dbar X near the W pair-production threshold in view of the importance of this process for a precise measurement of the W boson mass. Accurate…

高能物理 - 唯象学 · 物理学 2008-11-26 Martin Beneke , Pietro Falgari , Christian Schwinn , Adrian Signer , Giulia Zanderighi

The next-to-leading order (NLO) QCD radiative corrections to W+W- production at hadron colliders are well understood. We combine NLO perturbative QCD calculations with soft-gluon resummation of threshold logarithms to find a next-to-next-to…

高能物理 - 唯象学 · 物理学 2013-09-27 S. Dawson , Ian M. Lewis , Mao Zeng

Vetoing energetic jet activity is a crucial tool for suppressing backgrounds and enabling new physics searches at the LHC, but the introduction of a veto scale can introduce large logarithms that may need to be resummed. We present an…

高能物理 - 唯象学 · 物理学 2023-05-03 John M. Campbell , R. Keith Ellis , Tobias Neumann , Satyajit Seth

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 the impact of anomalous gauge boson and fermion couplings on the production of $W^+W^-$ pairs at potential future LHC upgrades and estimate the sensitivity at $\sqrt{S}=14$ TeV with $3~ab^{-1}$ and $\sqrt{S}=27$ TeV with…

高能物理 - 唯象学 · 物理学 2019-02-22 Julien Baglio , Sally Dawson , Ian M. Lewis

The $W$-pair production in association with a massive (anti)bottom jet is not only an important background to a number of interesting processes, such as the single top production associated with a W boson, but also a potential background to…

高能物理 - 唯象学 · 物理学 2011-08-19 Yan Han , Wang Shao-Ming , Ma Wen-Gan , Zhang Ren-You , Guo Lei

We study the electroweak first-order electroweak phase transition (FO-EWPT) within the Standard Model Effective Field Theory (SMEFT) framework induced by dimension-6 operators. Such phenomena can be probed independently via…

高能物理 - 唯象学 · 物理学 2025-12-05 Sahabub Jahedi , Indrajit Saha , Abhik Sarkar

We calculate the next-to-leading order(NLO) QCD corrections to the $WH^0$ production in association with a jet at hadron colliders. We study the impacts of the complete NLO QCD radiative corrections to the integrated cross sections, the…

高能物理 - 唯象学 · 物理学 2015-03-17 Su Ji-Juan , Ma Wen-Gan , Zhang Ren-You , Guo Lei

In the Standard Model (SM), electroweak (EW) corrections become significant at high energies, particularly at the tera-electronvolt scale and beyond, due to the presence of Sudakov logarithms. At these energy scales, the Standard Model…

高能物理 - 唯象学 · 物理学 2025-11-12 Hesham El Faham , Ken Mimasu , Davide Pagani , Claudio Severi , Eleni Vryonidou , Marco Zaro

A search is presented for three additional operators that would lead to anomalous WW$\gamma$ or WWZ couplings with respect to those in the standard model. They are constrained by studying events with two vector bosons; a W boson decaying to…

高能物理 - 实验 · 物理学 2019-12-17 CMS Collaboration

Large logarithmic corrections in $\hat s/p_t^2$ lead to substantial variations in the perturbative predictions for inclusive $W$-plus-dijet processes at the Large Hadron Collider. This instability can be cured by summing the…

高能物理 - 唯象学 · 物理学 2021-04-28 Jeppe R. Andersen , James A. Black , Helen M. Brooks , Emmet P. Byrne , Andreas Maier , Jennifer M. Smillie

We compute the next-to-leading correction to the scaling dimension of large-charge operators in the $3d$ critical $O(N)$ model in a double scaling limit in which both $N$ and the operator charge $Q$ are taken to be large. When $Q \gg N$ our…

高能物理 - 理论 · 物理学 2024-09-12 Nicola Andrea Dondi , Giacomo Sberveglieri

We present a study at next-to-leading-order (NLO) of the process $pp \to W^\pm Z \to \ell \nu_l \ell'^+ \ell'^-$, where $\ell,\ell' =e, \mu$, at the Large Hadron Collider. We include the full NLO QCD corrections and the NLO electroweak (EW)…

高能物理 - 唯象学 · 物理学 2019-04-16 Julien Baglio , LE Duc Ninh

We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to a set of dimension-six operators in the Standard Model Effective Field Theory (SMEFT). Different…

Helicity selection rules can suppress the leading contributions from dimension-6 operators in the Standard Model Effective Field Theory (SMEFT), reducing sensitivity to potential new physics. This paper explores how the interference…

高能物理 - 唯象学 · 物理学 2025-07-22 Prisco Lo Chiatto