中文
相关论文

相关论文: Combining LEP and LHC to bound the Higgs Width

200 篇论文

As one category of vector boson fusion, photo-production is one important production mechanism at $e$-$p$ colliders. A future $e$-$p$ collider -- Large Hadron-electron Collider (LHeC) has been discussed as a "Higgs factory" candidate where…

高能物理 - 唯象学 · 物理学 2020-08-05 Ruibo Li , Xiang Lv , Bo-Wen Wang , Kai Wang , Tao Xu

A precise measurement of the Higgs boson couplings to bottom and top quarks is of paramount importance during the upcoming LHC runs. We present a comprehensive analysis for the Higgs production process in association with a…

高能物理 - 唯象学 · 物理学 2016-01-27 Niccolo Moretti , Petar Petrov , Stefano Pozzorini , Michael Spannowsky

A study of two-Higgs-doublet models (2HDM) in the decoupling limit reveals the existence of parameter configurations with a large triple-Higgs self-coupling as the only low-energy trace of a departure from a Standard Model (SM) Higgs…

高能物理 - 唯象学 · 物理学 2017-08-23 M. Moretti , S. Moretti , F. Piccinini , R. Pittau , A. D. Polosa

Probing the properties of the discovered Higgs boson may tell us whether or not it is the same particle as the one predicted by the Standard Model. To this aim we parametrize deviations of the Higgs couplings to matter from the Standard…

高能物理 - 唯象学 · 物理学 2016-02-22 Hermes Belusca-Maito

In general, charged Higgs bosons $H^\pm$ appear in non-minimal Higgs models. The $H^\pm W^\mp Z$ vertex is known to be related to the violation of the global symmetry (custodial symmetry) in the Higgs sector. Its magnitude strongly depends…

高能物理 - 唯象学 · 物理学 2011-05-12 Shinya Kanemura , Kei Yagyu , Kazuya Yanase

Interaction of Higgs scalar (H) with weak gauge bosons (V=W,Z) is the {\it key} to understand electroweak symmetry breaking (EWSB) mechanism. New physics effects in the HVV interactions, as predicted by models of compositeness,…

高能物理 - 唯象学 · 物理学 2010-04-05 Hong-Jian He , Yu-Ping Kuang , C. -P. Yuan , Bin Zhang

We identify the differential cross sections for $t\bar t$ production and the total cross section for Higgs production through gluon fusion as the processes in which the two effective operators describing the leading non-standard…

高能物理 - 唯象学 · 物理学 2017-10-25 D. Barducci , M. Fabbrichesi , A. Tonero

Associated production of a Higgs boson with a heavy, i.e. top or bottom, quark-anti-quark pair provide observation channels for Higgs bosons at the LHC which can be used to measure the respective Yukawa couplings. For the light…

高能物理 - 唯象学 · 物理学 2008-11-26 Wolfgang Hollik , Michael Rauch

We derive model-independent constraints on Higgs mass and couplings from associated signals for higher masses, accessible at LEP2. This work is motivated by the fact that, in many extensions of the standard model, the Higgs boson can have…

高能物理 - 唯象学 · 物理学 2009-09-17 A. Lopez-Fernandez , J. C. Romão , F. de Campos , J. W. F. Valle

We study the implications of the absence of a direct discovery of a Higgs boson at LEP. First we exhibit 15 physically different ways in which one or more Higgs bosons lighter than the LEP limit could still exist. In the minimal…

高能物理 - 唯象学 · 物理学 2007-05-23 G. L. Kane , Brent D. Nelson , Lian-Tao Wang , Ting T. Wang

Far off-shell Higgs production in $H \rightarrow WW,ZZ$, is a particularly powerful probe of Higgs properties, allowing one to disentangle Higgs width and coupling information unavailable in on-shell rate measurements. These measurements…

高能物理 - 唯象学 · 物理学 2015-06-19 Ian Moult , Iain W. Stewart

Charged lepton pairs are produced copiously in high-energy hadron collisions via electroweak gauge boson exchange, and are one of the most precisely measured final states in proton-proton collisions at the Large Hadron Collider (LHC). We…

高能物理 - 唯象学 · 物理学 2021-10-04 S. Amoroso , J. Fiaschi , F. Giuli , A. Glazov , F. Hautmann , O. Zenaiev

In the framework of the Left-Right twin Higgs (LRTH) model, we consider the constrains from the latest search for high-mass dilepton resonances at the LHC and find that the heavy neutral boson $Z_H$ is excluded with mass below 2.76 TeV.…

高能物理 - 唯象学 · 物理学 2015-05-20 Jinzhong Han , Shaofeng Li , Bingfang Yang , Ning Liu

In this review, we discuss methods of parsing direct and indirect information from collider experiments regarding the Higgs boson and describe simple ways in which experimental likelihoods can be consistently reconstructed and interfaced…

高能物理 - 唯象学 · 物理学 2013-03-20 Aleksandr Azatov , Jamison Galloway

We study the production of a Higgs boson in association to a top-antitop pair at the Large Hadron Collider. We show how precise predictions for the differential distributions with respect to the transverse momentum of the Higgs boson, to…

高能物理 - 唯象学 · 物理学 2017-10-25 Alessandro Broggio , Andrea Ferroglia , Miguel C. N. Fiolhais , Antonio Onofre

The measurements of the properties of the Higgs boson are presented in the H$\rightarrow$ZZ$\rightarrow$4$\ell$ ($\ell$=e,$\mu$) decay channel using a data sample corresponding to an integrated luminosity of 35.9 fb$^{-1}$ of proton-proton…

高能物理 - 实验 · 物理学 2017-10-11 Muhammad Bilal Kiani

The measurement of the trilinear and quartic Higgs self-couplings is necessary for the reconstruction of the Higgs potential. This way the Higgs mechanism as the origin of electroweak symmetry breaking can be tested. The couplings are…

高能物理 - 唯象学 · 物理学 2015-03-17 Ramona Grober , Margarete Muhlleitner

The SM-like Higgs pair productions are discussed in the framework of the general CP-violating two-Higgs-doublet model, where we find the CP-violating mixing angles can be related to the Higgs self couplings. Therefore, the future…

高能物理 - 唯象学 · 物理学 2017-12-06 Ligong Bian , Ning Chen , Yun Jiang

Based on the analysis of 5 fb^-1 of data at the LHC, the ATLAS and CMS collaborations have presented evidence for a Higgs boson with a mass in the 125 GeV range. We consider the 125 GeV neutral Higgs pair production process in the context…

高能物理 - 唯象学 · 物理学 2012-11-26 Hao Sun , Ya-Jin Zhou , He Chen

Despite the discovery of a Higgs boson h(125GeV) at the LHC Run-1, its self-interaction has fully evaded direct experimental probe so far. Such self-interaction is vital for electroweak symmetry breaking, vacuum stability and electroweak…

高能物理 - 唯象学 · 物理学 2016-01-08 Hong-Jian He , Jing Ren , Weiming Yao