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Anomalous chromomagnetic and chromoelectric dipole moments of the top quark may arise from various high scale theories. We carry out a model independent study of such interactions focusing on the limits that can be obtained from current…

High Energy Physics - Phenomenology · Physics 2010-10-12 Pratishruti Saha

We explore the use of polarized $e^+/e^-$ beams and/or the information on final state decay lepton polarizations in probing the interaction of the Higgs boson with a pair of vector bosons. A model independent analysis of the process $e^+…

High Energy Physics - Phenomenology · Physics 2009-11-13 Sudhansu S. Biswal , Debajyoti Choudhury , Rohini M. Godbole , Mamta

This talk is a review of possible discoveries of exotic not Standard Model Physics in the early stage of LHC (first two years), with the ATLAS and CMS experiments. LHC will be the first experiment ever to explore the TeV region and new…

High Energy Physics - Experiment · Physics 2008-10-08 Paolo Spagnolo

We study possible new physics interactions in the $ZZH$ vertex contributing to the Higgsstrahlung process $e^+ e^- \to ZH$ at proposed future $e^+e^-$ colliders using the polarization of the $Z$ as a probe. We calculate the spin density…

High Energy Physics - Phenomenology · Physics 2020-01-08 Kumar Rao , Saurabh D. Rindani , Priyanka Sarmah

The description of the massive vector- and pseudo-vector bosons is proposed, which allows the use of them as interaction carriers. The boson propagators guarantee the renormalizability of the theory with massive intermediate bosons. The…

General Physics · Physics 2019-04-10 Konstantin Karplyuk , Oleksandr Zhmudskyy

We analyze the potential of the Next Linear $e^+e^-$ Collider to study anomalous quartic vector-boson interactions through the processes $e^+ e^- \to W^+W^-Z$ and $ZZZ$. In the framework of $SU(2)_L \otimes U(1)_Y$ chiral Lagrangians, we…

High Energy Physics - Phenomenology · Physics 2009-10-30 O. J. P. Eboli , M. C. Gonzalez-Garcia , J. K. Mizukoshi

This is a brief review of experimental strategies for physics beyond the Standard Model based on the talk given in the ``Physics at LHC'' in Vienna, July 2004 \cite{vienna}. The emphasis is on Tevatron thematology and experience.

High Energy Physics - Experiment · Physics 2007-05-23 M. Spiropulu

A search for $W^\prime$ bosons in events with one lepton (electron or muon) and missing transverse momentum is presented. The search uses 3.2 fb$^{-1}$ of $pp$ collision data collected at $\sqrt{s} = 13$ TeV by the ATLAS experiment at the…

High Energy Physics - Experiment · Physics 2016-12-01 ATLAS Collaboration

We consider the production of a single top quark in association with a $W$ boson at LHeC based $\gamma p$ collider. We compute the cross section for the process $\gamma p\rightarrow WtX$ with the anomalous $Wtb$ and $Wtb\gamma$ couplings.…

High Energy Physics - Phenomenology · Physics 2014-02-11 I. T. Cakir , A. Senol , A. T. Tasci

Possible anomalous couplings of the Higgs boson to vector bosons and fermions are studied using Higgs boson candidates decaying to a pair of photons. The study is based on proton-proton collision data at $\sqrt{s}$ = 13 TeV collected by the…

High Energy Physics - Experiment · Physics 2026-05-15 CMS Collaboration

Recently published benchmark models have contained rather heavy superpartners. To test the robustness of this result, several benchmark models have been constructed based on theoretically well-motivated approaches, particularly string-based…

High Energy Physics - Phenomenology · Physics 2009-11-07 G. L. Kane , J. Lykken , Stephen Mrenna , Brent D. Nelson , Lian-Tao Wang , Ting T. Wang

Recent LHC highlights of searches for Higgs bosons beyond the Standard Model are presented. The results by the ATLAS and CMS collaborations are based on 2011 and 2012 proton-proton collision data at centre-of-mass energies of 7 and 8 TeV,…

High Energy Physics - Experiment · Physics 2019-08-14 Clemens Lange

The search for stable heavy exotic hadrons is a promising way to observe new physics processes at collider experiments. The discovery potential for such particles can be enhanced or suppressed by their interactions with detector material.…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. R. de Boer , A. B. Kaidalov , D. A. Milstead , O. I. Piskounova

We derive bounds on Higgs and gauge--boson anomalous interactions using the LEP2 data on the production of three photons and photon pairs in association with hadrons. In the framework of $SU(2)_L \otimes U(1)_Y$ effective Lagrangians, we…

High Energy Physics - Phenomenology · Physics 2009-10-31 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. M. Lietti , S. F. Novaes

The measurement of anomalous gauge boson self couplings is reviewed for a variety of present and planned accelerators. Sensitivities are compared for these accelerators using models based on the effective Lagrangian approach. The…

This review covers results on the production of all possible electroweak boson pairs and 2-to-1 vector boson fusion at the CERN Large Hadron Collider (LHC) in proton-proton collisions at a center of mass energy of 7 and 8 TeV. The data were…

High Energy Physics - Experiment · Physics 2017-09-22 Daniel R. Green , Patrick Meade , Marc-Andre Pleier

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 propose a new Time Projection Chamber particle detector (TPC) to search for the existence of feebly-interacting bosons and to investigate the existence of the X17 boson, proposed by the ATOMKI group to explain anomalous results in the…

In this paper, we study the extent to which CP parity of a Higgs boson, and more generally its anomalous couplings to gauge bosons, can be measured at the LHC and a future electron-positron collider. We consider several processes, including…

In this article we study the prospects of the proposed Large Hadron electron Collider (LHeC) in the search for heavy neutral scalar particles. We consider a minimal model with one additional complex scalar singlet that interacts with the…

High Energy Physics - Phenomenology · Physics 2019-08-26 Luigi Delle Rose , Oliver Fischer , A. Hammad