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The coupling of Higgs with gauge bosons can receive non-decoupling corrections due to heavy quanta. Deviation from the SM predictions are described by a set of parameters e_V, which can be related to the parameters S,T. The Higgs production…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Lorenzo Diaz-Cruz

The associated production of Higgs and $W$ bosons via vector-boson fusion (VBF) is highly sensitive to the relative sign of the Higgs boson couplings to $W$ and $Z$ bosons. In this Letter, two searches for this process are presented, using…

High Energy Physics - Experiment · Physics 2024-10-07 ATLAS Collaboration

Many new physics models predict the existence of extra neutral gauge bosons ($Z'$). Inspired by the recent development on Higgs search, we study the properties of $Z'$ via the Higgs and $Z$ boson associated production. The couplings of $Z'$…

High Energy Physics - Phenomenology · Physics 2013-06-26 Hong-Lei Li , Zong-Guo Si , Xiu-Yi Yang , Zhong-Juan Yang , Ya-Juan Zheng

We emphasize the role that the associated production of a Higgs boson with a pair of top-antitop quarks can play at present and future hadron colliders. Results of recent calculations of the NLO total cross section for the associated…

High Energy Physics - Phenomenology · Physics 2007-05-23 L. Reina , S. Dawson , D. Wackeroth

Higgs boson production in association with two forward jets and a central photon at the CERN Large Hadron Collider is analyzed, for the Higgs boson decaying into a b bbar pair in the m_H <= 140 GeV mass region. We study both irreducible and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Emidio Gabrielli , Fabio Maltoni , Barbara Mele , Mauro Moretti , Fulvio Piccinini , Roberto Pittau

The search for the Higgs boson produced by Vector Boson Fusion (VBF) where the Higgs decays into W pairs and thence to leptons plus neutrinos is discussed at the Monte Carlo generator level. In particular, the cuts which are applied in…

High Energy Physics - Experiment · Physics 2007-05-23 Dan Green

There exist substantial backgrounds to the vector boson fusion production of Higgs at the LHC. Mass variables are studied which may alleviate the need to assume a spin zero WW resonance in order to achieve a sufficient signal to noise ratio…

High Energy Physics - Experiment · Physics 2007-05-23 Dan Green

This Letter presents the first study of Higgs boson production in association with a vector boson (V = W or Z) in the fully hadronic $qqbb$ final state using data recorded by the ATLAS detector at the LHC in proton-proton collisions at…

High Energy Physics - Experiment · Physics 2024-04-04 ATLAS Collaboration

Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton-proton collision data set recorded with the CMS detector in…

High Energy Physics - Experiment · Physics 2019-05-21 CMS Collaboration

We estimate the attainable limits on the coefficients of dimension--6 operators from the analysis of Higgs boson phenomenology, in the framework of a $SU_L(2) \times U_Y(1)$ gauge-invariant effective Lagrangian. Our results, based on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. C. Gonzalez-Garcia

We estimate the attainable limits on the coefficients of dimension--6 operators from the analysis of Higgs boson phenomenology, in the framework of a $SU_L(2) \times U_Y(1)$ gauge-invariant effective Lagrangian. Our results, based on the…

High Energy Physics - Phenomenology · Physics 2009-10-30 F. de Campos , M. C. Gonzalez-Garcia , S. F. Novaes

A search is presented for the production of a Higgs boson in association with a single top quark, based on data collected in 2016 by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV, which corresponds to an integrated…

High Energy Physics - Experiment · Physics 2019-05-29 CMS Collaboration

The search for the Higgs boson is one of the main physics goals of the Large Hadron Collider (LHC) and its two multi-purpose experiments, ATLAS and CMS. Vector boson fusion is the second largest production process for a standard model Higgs…

High Energy Physics - Phenomenology · Physics 2007-05-23 Iris Rottlaender

A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (= W or Z) in a sample of proton-proton collision events corresponding to an integrated luminosity of 18.9 inverse femtobarns at a…

High Energy Physics - Experiment · Physics 2016-08-04 CMS Collaboration

The production of a Higgs boson in association with a pair of top-antitop or bottom-antibottom quarks plays a very important role at both the Tevatron and the Large Hadron Collider. The theoretical prediction of the corresponding cross…

High Energy Physics - Phenomenology · Physics 2011-09-13 S. Dawson , C. B. Jackson , L. H. Orr , L. Reina , D. Wackeroth

New physics coupled to the Higgs boson may hide it in the standard decay channels to be investigated at LHC. We consider the models where new invisible dominant decay modes of the Higgs boson are responsible for this hiding. We propose to…

High Energy Physics - Phenomenology · Physics 2011-08-31 E. E. Boos , S. V. Demidov , D. S. Gorbunov

We study central Z-boson production accompanied by rapidity gaps on either side as a way to gauge Higgs weak boson fusion production at the LHC. We analyse the possible backgrounds for the bb-decay mode and show that these can be…

High Energy Physics - Phenomenology · Physics 2014-11-17 V. A. Khoze , M. G. Ryskin , W. J. Stirling , P. H. Williams

Higgs-boson production in association with bottom quarks is an important discovery channel for supersymmetric Higgs particles at the Tevatron and the LHC. We present higher-order QCD predictions for inclusive cross sections and for the…

High Energy Physics - Phenomenology · Physics 2009-04-13 Michael Krämer

We analyse the associated production of Higgs and $Z$ boson via heavy-quark loops at the LHC in the Standard Model and beyond. We first review the main features of the Born $2\to 2$ production, and in particular discuss the high-energy…

High Energy Physics - Phenomenology · Physics 2015-03-06 B. Hespel , F. Maltoni , E. Vryonidou

We analyze the production of the neutral Higgs particles of the Minimal Supersymmetric extension of the Standard Model at the Fermilab Tevatron collider. We consider the two main production and detection channels: gluon--gluon and bottom…

High Energy Physics - Phenomenology · Physics 2011-05-11 Julien Baglio , Abdelhak Djouadi