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A measurement is presented of the cross section for the production of a W boson with one or two jets, of which at least one must be a b-jet, in pp collisions at sqrt(s)=7 TeV. Production via top decay is not included in the signal…

高能物理 - 实验 · 物理学 2012-08-27 ATLAS Collaboration

This paper discusses the ATLAS potential to study Supersymmetry for the "Focus-Point" region of the parameter space of mSUGRA models. The potential to discovery a deviation from Standard Model expectations with the first few ${fb}^{-1}$ of…

高能物理 - 实验 · 物理学 2008-11-26 U. De Sanctis , T. Lari , S. Montesano , C. Troncon

The development of techniques for identifying hadronic signals from the overwhelming multi-jet backgrounds is an important part of the Large Hadron Collider (LHC) program. Of prime importance are resonances decaying into a pair of partons,…

高能物理 - 唯象学 · 物理学 2015-03-05 Eder Izaguirre , Brian Shuve , Itay Yavin

The internal structure of jets produced in pp collisions at the LHC is measured using the ATLAS detector in an inclusive jet sample corresponding to 35pb-1 of pp collisions at sqrt(s) = 7 TeV. Classical jet shape and energy flow…

高能物理 - 实验 · 物理学 2019-08-13 David W. Miller

We discuss the measurements of the anomalous triple gauge couplings at Large Hadron Collider focusing on the contribution of the ${\cal O}_{3W}$ and ${\cal O}_{3\tilde W}$ operators. These deviations were known to be particularly hard to…

高能物理 - 唯象学 · 物理学 2019-05-01 A. Azatov , D. Barducci , E. Venturini

The ratio of the production cross sections for W and Z bosons in association with jets has been measured in proton-proton collisions at $\sqrt{s}$ = 7 TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is based on…

高能物理 - 实验 · 物理学 2015-02-10 ATLAS Collaboration

Differential cross sections for a W boson produced in association with jets are measured in a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the CMS detector and corresponding to an integrated…

高能物理 - 实验 · 物理学 2018-05-02 CMS Collaboration

A standard model effective field theory (SMEFT) analysis with dimension-six operators probing nonresonant new physics effects is performed in the Higgs-strahlung process, where the Higgs boson is produced in association with a W or Z boson,…

高能物理 - 实验 · 物理学 2025-03-24 CMS Collaboration

We discuss how four-lepton decays of the Z-boson probe currently unconstrained flat directions in the parameter space of the Standard Model Effective Field Theory (SMEFT). We derive the constraints from these decays on four-lepton operators…

高能物理 - 唯象学 · 物理学 2021-03-24 Radja Boughezal , Chien-Yi Chen , Frank Petriello , Daniel Wiegand

We report on the measurements of inclusive W+jets and Z+jets cross sections in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the bosons, are presented as a…

高能物理 - 实验 · 物理学 2011-06-13 Stefan Ask

This Letter reports on a first measurement of the inclusive W+jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes…

高能物理 - 实验 · 物理学 2012-08-27 The ATLAS Collaboration

Multiboson production provides a unique way to probe Electroweak Symmetry Breaking (EWSB) and physics beyond the Standard Model (SM). With the discovery of the Higgs boson, the default model is that EWSB occurs according to the Higgs…

The search for heavy $W'$ bosons in their decay modes to a lepton and a heavy neutrino offers a promising avenue for probing new physics beyond the Standard Model. This work focuses on such a signature with an energetic lepton plus a fat…

高能物理 - 唯象学 · 物理学 2025-03-27 Songshaptak De , Atri Dey , Tousik Samui

Various mechanisms may contribute to neutrinoless double beta decay in the left-right symmetric model. The interference between these mechanisms also contribute to the overall decay rate. The analysis of the contributions of these…

核理论 · 物理学 2020-04-02 Fahim Ahmed , Mihai Horoi

The paper is devoted to studies of prospects to search for hypothetical W-prime gauge bosons at hadron colliders via single-top quark production process. A special attention is paid to the interference between the Standard Model (SM) W and…

高能物理 - 唯象学 · 物理学 2008-11-26 E. Boos , V. Bunichev , L. Dudko , M. Perfilov

The Standard Model effective field theory (SMEFT) provides a general framework to include the dynamics of the beyond standard model physics residing at a certain higher energy scale $\Lambda$. We study the top-quark production along with a…

高能物理 - 唯象学 · 物理学 2022-12-07 Monoranjan Guchait , Arnab Roy

We study whether higher-dimensional operators in effective field theories, in particular in the Standard Model Effective Field Theory (SMEFT), can source gauge anomalies via the modification of the interactions involved in triangle…

高能物理 - 唯象学 · 物理学 2021-06-30 Quentin Bonnefoy , Luca Di Luzio , Christophe Grojean , Ayan Paul , Alejo N. Rossia

The quartic gauge boson couplings that identify the strengths of the gauge boson self-interactions are exactly determined by the non-Abelian gauge nature of the Standard Model. The examination of these couplings at $ep$ collisions with high…

高能物理 - 唯象学 · 物理学 2021-08-02 E. Gurkanli , V. Ari , A. A. Billur , M. Köksal

A prospective measurement of the differential cross section of \tWZ production with respect to the transverse momentum of the \PZ boson using a general-purpose detector at the High-Luminosity Large Hadron Collider (HL-LHC) is described. The…

高能物理 - 唯象学 · 物理学 2023-06-14 James Keaveney

This paper reports on a search for the electroweak diboson ($WW/WZ/ZZ$) production in association with a high-mass dijet system, using data from proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV. The data,…

高能物理 - 实验 · 物理学 2019-09-10 ATLAS Collaboration