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A complete parton level analysis of ll + four jets l = e,mu and 3lv + two jets production at the LHC is presented, including all processes at order $\ordEW$, $\ordQCD$ and $\ordQCDsq$ when appropriate. The infinite Higgs mass scenario,…

高能物理 - 唯象学 · 物理学 2009-12-15 Alessandro Ballestrero , Giuseppe Bevilacqua , Diogo Buarque Franzosi , Ezio Maina

A complete parton level analysis of lv + four jets production at the LHC is presented, including all processes at order O(alpha^6), O(alpha^4*alpha_s^2) and O(alpha^2*alpha_s^4). The infinite Higgs mass scenario, which is considered as a…

高能物理 - 唯象学 · 物理学 2010-01-15 Alessandro Ballestrero , Giuseppe Bevilacqua , Ezio Maina

Boson boson scattering and Higgs production in boson boson fusion will be actively investigated at the LHC. We have performed a parton level study of all processes of the type $q_1 q_2 \to q_3 q_4 q_5 q_6 l^+l^-$ using for the first time a…

高能物理 - 唯象学 · 物理学 2009-09-29 E. Accomando , A. Ballestrero , A. Belhouari , E. Maina

We demonstrate the potential of fully leptonic cascade decays of a heavy neutral Higgs boson through vectorlike leptons as a simultaneous probe for extended Higgs sectors and extra matter particles at the LHC. The processes we explore are…

高能物理 - 唯象学 · 物理学 2022-11-09 Radovan Dermisek , Junichiro Kawamura , Enrico Lunghi , Navin McGinnis , Seodong Shin

Higgs boson production in association with $W$ and $Z$ bosons at high luminosity CERN Large Hadron Collider (LHC,$\sqrt{s}$=14 TeV), is one of the most promising discovery channel for a SM Higgs particle with a mass below 135 GeV, where the…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Y. Hussein

Heavy vector-boson hunting is one of the major analyses undertaken by the experiments carried out at the LHC. I will explore two scenarios which have not been investigated yet by the experimental collaborations. The first scenario consists…

高能物理 - 唯象学 · 物理学 2017-11-28 Gennaro Corcella

The process of vector boson scattering is of great interest because it is completely prescribed in the Standard Model (SM) once the Higgs mass is known. The LHC is a source of Z-Z pairs produced by means of the vector boson fusion mechanism…

高能物理 - 实验 · 物理学 2007-05-23 D. Green

This paper studies the pair production of the doubly charged Higgs boson of the left-right symmetric models using multilepton final state in the vector boson fusion (VBF)-like processes. The study is performed in the framework consistent…

高能物理 - 唯象学 · 物理学 2015-06-15 Bhaskar Dutta , Ricardo Eusebi , Yu Gao , Tathagata Ghosh , Teruki Kamon

Recently the ATLAS and CMS collaborations presented preliminary results of Standard Model Higgs searches and reported excesses of events for a Higgs boson at 124-126 GeV. Such a Higgs mass can be naturally realized, simultaneously…

高能物理 - 唯象学 · 物理学 2013-05-30 Motoi Endo , Koichi Hamaguchi , Sho Iwamoto , Norimi Yokozaki

In this paper we consider a simple scenario where the Higgs boson and two vector resonances are supposed to arise from a new strong interacting sector. We use the ATLAS measurements of the dijet spectrum to set limits on the masses of the…

Boson-boson scattering and Higgs production in boson-boson fusion hold the key to electroweak symmetry breaking. In order to analyze these essential features of the Standard Model we have performed a partonic level study of all processes…

高能物理 - 唯象学 · 物理学 2009-11-11 E. Accomando , A. Ballestrero , S. Bolognesi , E. Maina , C. Mariotti

A search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector bosons, using proton-proton collisions at $\sqrt{s} =$ 13 TeV at the LHC, is reported. The data sample corresponds to an integrated…

高能物理 - 实验 · 物理学 2021-08-13 CMS Collaboration

We analyse some features of WW scattering processes at LHC. The severe cancellations between fusion diagrams and the other contributions evidence the necessity of complete calculations for studying the high WW invariant mass region and…

高能物理 - 唯象学 · 物理学 2007-05-23 Elena Accomando , Alessandro Ballestrero , Aissa Belhouari , Ezio Maina

The hierarchy problem and the electroweak data, together, provide a plausible motivation for considering a light Higgs emerging as a pseudo-Goldstone boson from a strongly-coupled sector. In that scenario, the rates for Higgs production and…

高能物理 - 唯象学 · 物理学 2014-11-20 Roberto Contino , Christophe Grojean , Mauro Moretti , Fulvio Piccinini , Riccardo Rattazzi

We study a simple effective field theory incorporating six heavy vector bosons together with the standard-model field content. The new particles preserve custodial symmetry as well as an approximate left-right parity symmetry. The enhanced…

高能物理 - 唯象学 · 物理学 2016-02-17 Thomas Appelquist , Yang Bai , James Ingoldby , Maurizio Piai

This article summarizes a talk given at Higgs Hunting 2014 on projections of the sensitivity of the ATLAS and CMS experiments to beyond Standard Model Higgs physics at the High Luminosity Large Hadron Collider. We describe results on vector…

高能物理 - 实验 · 物理学 2019-08-14 Andre Georg Holzner

We present a version of the twin Higgs mechanism with vector-like top partners. In this setup all gauge anomalies automatically cancel, even without twin leptons. The matter content of the most minimal twin sector is therefore just two twin…

高能物理 - 唯象学 · 物理学 2017-05-03 Nathaniel Craig , Simon Knapen , Pietro Longhi , Matthew Strassler

An unspecified strong dynamics may give rise to composite vectors sufficiently light that their interactions, among themselves or with the electroweak gauge bosons, be approximately described by an effective Lagrangian invariant under…

高能物理 - 唯象学 · 物理学 2015-03-13 Riccardo Barbieri , Antonio E. Carcamo , Gennaro Corcella , Riccardo Torre , Enrico Trincherini

Perhaps the most important question in particle physics today is whether the boson with mass near 125 GeV discovered at the Large Hadron Collider (LHC) is the Higgs Boson of the Standard Model. Since a particularly important property of the…

高能物理 - 唯象学 · 物理学 2013-07-12 A. Freitas , J. S. Gainer

The Higgs boson pair production at a linear $e^+e^-$ collider is analyzed in the $4\tau$ final state in the context of lepton-specific or type IV 2HDMs. Both beams are assumed to be unpolarized. The Higgs boson pairs (HA) are produced…

高能物理 - 唯象学 · 物理学 2018-12-12 Majid Hashemi
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