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A study on effective anomalous interactions up to dimension 5 of the top quark with the electroweak gauge bosons is made in the non-linear Chiral Lagrangian approach. Bounds on the anomalous dimension four terms are obtained from their…

High Energy Physics - Phenomenology · Physics 2014-11-17 F. Larios , Ehab Malkawi , C. -P. Yuan

We discuss the meaning of anomalous vector boson self couplings. Implications of present experimental constraints for future colliders are discussed. Results for triple vector boson production at the LHC are given.

High Energy Physics - Phenomenology · Physics 2007-05-23 J. J. van der Bij , A. Ghinculov

A study on the effective anomalous interactions, up to dimension 5, of the top quark with the electroweak gauge bosons is made in the non-linear Chiral Lagrangian approach. Bounds on the anomalous dimension four terms are obtained from…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Larios , Ehab Malkawi , C. -P. Yuan

We compare vector boson fusion and quark antiquark annihilation production of vector boson pairs at the LHC and include the effects of anomalous couplings. Results are given for confidence intervals for anomalous couplings at the LHC…

High Energy Physics - Phenomenology · Physics 2011-09-13 I. Kuss , E. Nuss

In this thesis we investigated, at partonic level and leading order, the LHC potencial operating with $\sqrt{s}=14$ TeV and integrated luminosity of $L=100\;{fb}^{-1}$ to probe "pure" (without triple vertex contributions) anomalous…

High Energy Physics - Phenomenology · Physics 2013-03-05 Patricia Rebello Teles

We obtain constraints on possible anomalous interactions of the top quark with the electroweak vector bosons arising from the precision measurements at the Z pole. In the framework of $SU(2)_L \otimes U(1)_Y$ chiral Lagrangians, we examine…

High Energy Physics - Phenomenology · Physics 2009-10-30 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. F. Novaes

The larger center-of-mass energy of the Large Hadron Collider Run 2 opens up the possibility of a more detailed study of the quartic vertices of the electroweak gauge bosons. Our goal in this work is to classify all operators possessing…

High Energy Physics - Phenomenology · Physics 2016-06-01 O. J. P. Eboli , M. C. Gonzalez-Garcia

We analyze the potential of the CERN Large Hadron Collider (LHC) to study anomalous trilinear vector-boson interactions W^+ W^- \gamma and W^+ W^- Z through the single production of electroweak gauge bosons via the weak boson fusion…

High Energy Physics - Phenomenology · Physics 2008-11-26 O. J. P. Eboli , M. C. Gonzalez-Garcia

We investigate the anomalous charged triple gauge boson couplings generated via $SU(2)_l\times U(1)_Y$ gauge invariant dimension-6 operators with final state four jet events in an $e^-e^+$ Collider at $\sqrt{s}=250$~GeV. We consider all the…

High Energy Physics - Phenomenology · Physics 2024-07-02 Amir Subba , Ritesh K. Singh

The sensitivity of top quark pair production at the Large Hadron Collider to the presence and nature of an underlying Z' boson is studied, accounting for six-fermion decay with full tree-level Standard Model ttbar interference and all…

High Energy Physics - Phenomenology · Physics 2017-05-15 Lucio Cerrito , Declan Millar , Stefano Moretti , Francesco Spanò

A search is presented for anomalous quartic gauge boson couplings in vector-boson scattering. The data for the analysis correspond to $20.2$ fb$^{-1}$ of $\sqrt{s}=8$ TeV $pp$ collisions, and were collected in 2012 by the ATLAS experiment…

High Energy Physics - Experiment · Physics 2017-03-17 ATLAS Collaboration

We explore the capability of a 500 or 1000 GeV $e^+e^-$ linear collider to measure anomalous quartic gauge boson couplings. In the framework of a non-linear effective Lagrangian with a custodial $SU)2)$ symmetry, there are only two…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Dawson , A. Likhoded , G. Valencia , O. Yushchenko

The absence of a light Higgs boson causes vector boson couplings to become strong at 1 TeV. A general framework for a systematic and consistent treatment is provided by effective theories of electroweak symmetry breaking. Already in…

High Energy Physics - Phenomenology · Physics 2009-08-21 Erik Schmidt , Michael Beyer , Henning Schroeder

At a high energy $ep$ collider, such as the Large Hadron-Electron Collider (LHeC) which is being planned at CERN, one can access the $WW\gamma$ vertex exclusively in charged current events with a radiated photon, with no interference from…

High Energy Physics - Phenomenology · Physics 2014-05-26 Sudhansu S. Biswal , Monalisa Patra , Sreerup Raychaudhuri

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…

High Energy Physics - Experiment · Physics 2019-12-17 CMS Collaboration

We study new physics effects to the quartic gauge boson couplings formulated by the electroweak chiral Lagrangian. Five next-to-leading order operators characterize the anomalous quartic gauge interactions which involve pure Goldstone boson…

High Energy Physics - Phenomenology · Physics 2009-10-30 T. Han , H. -J. He , C. -P. Yuan

Cross section measurements of top quark production in association with a vector boson in proton-proton collisions at $\sqrt{s}=13\,\mathrm{TeV}$ at the CERN LHC provide an important probe of the electroweak top quark couplings. In this…

High Energy Physics - Experiment · Physics 2022-01-03 Joscha Knolle

In these proceedings I review recent theoretical predictions describing processes involving vector bosons and jets at the LHC. Such processes possess very distinctive phenomenologies and their theoretical accuracy is very different. I focus…

High Energy Physics - Phenomenology · Physics 2020-09-28 Mathieu Pellen

A study of the anomalous couplings of the Higgs boson to vector bosons, including $CP$-violation effects, has been conducted using its production and decay in the WW channel. This analysis is performed on proton-proton collision data…

High Energy Physics - Experiment · Physics 2024-08-20 CMS Collaboration

Final states with a vector boson and a hadronic jet allow one to infer the Born-level kinematics of the underlying hard scattering process, thereby probing the partonic structure of the colliding protons. At forward rapidities, the parton…

High Energy Physics - Phenomenology · Physics 2019-06-26 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , A. Huss , D. M. Walker