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The Higgs boson decay, H -> mu mubar gamma, is studied in the Standard Model at the tree and one-loop levels. It is shown that for Higgs boson masses above 110 GeV, the contribution to the radiative width from the one-loop level exceeds the…

高能物理 - 唯象学 · 物理学 2009-10-31 Ali Abbasabadi , Wayne W. Repko

The mass of the Higgs boson in the Split Supersymmetric Standard Model is calculated, including all one-loop threshold effects and the renormalization group evolution of the Higgs quartic coupling through two-loops. The two-loop corrections…

高能物理 - 唯象学 · 物理学 2011-01-13 Michael Binger

The Higgs boson is in the backbone of the standard model of electroweak interactions. It must exist in some form for achieving unification of interactions. In the gauge-Higgs unification scenario the Higgs boson becomes a part of the…

高能物理 - 唯象学 · 物理学 2015-03-13 Yutaka Hosotani

Many models of electroweak symmetry breaking have an additional light pseudoscalar. If the Higgs boson can decay to a new pseudoscalar, LEP searches for the Higgs can be significantly altered and the Higgs can be as light as 86 GeV.…

高能物理 - 唯象学 · 物理学 2009-06-30 Mariangela Lisanti , Jay G. Wacker

The standard-model Higgs boson couples to quarks through a parity-even scalar $Hq{\bar q}$ coupling. We show that the rare Higgs decay $H\to VZ$, where $V$ is a vector quarkonium state such as $J/\psi$ ($c{\bar c}$) or $\Upsilon(1S)$…

高能物理 - 唯象学 · 物理学 2014-08-15 Bhubanjyoti Bhattacharya , Alakabha Datta , David London

We study models that produce a Higgs boson plus photon ($h^0 \gamma$) resonance at the LHC. When the resonance is a $Z'$ boson, decays to $h^0 \gamma$ occur at one loop. If the $Z'$ boson couples at tree-level to quarks, then the $h^0…

高能物理 - 唯象学 · 物理学 2017-11-22 Bogdan A. Dobrescu , Patrick J. Fox , John Kearney

We study the Large Hadron Collider (LHC) discovery prospects of a light charged Higgs boson decaying into a $W$ boson and a non-Standard Model (SM)-like Higgs within the 2-Higgs Doublet Model type-I. In the analysis, we consider the…

高能物理 - 唯象学 · 物理学 2024-02-13 A. Arhrib , R. Benbrik , M. Krab , B. Manaut , S. Moretti , Y. Wang , Q. S. Yan

We reconsider the signature of events with two charged leptons and missing energy as a signal for the detection of the Standard Model Higgs boson in the mass region M(Higgs)=155--180 GeV. It is shown that a few simple experimental criteria…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Dittmar , H. Dreiner

Using the Higgs boson mass $m_h=125$ GeV, the radiative Higgs decays $h\rightarrow\gamma \nu_l\bar\nu_l$ with $\nu_l = \nu_e,\,\nu_\mu$ and $\nu_\tau$ are analyzed in the standard model. Our calculation shows that the inclusive width of…

高能物理 - 唯象学 · 物理学 2014-02-05 Yi Sun , Dao-Neng Gao

The newly discovered resonance at 125 GeV has properties consistent with the Standard Model (SM) Higgs particle, although some production and/or decay channels currently exhibit O(1) deviations. We consider scenarios with a new scalar…

高能物理 - 唯象学 · 物理学 2015-06-05 Brian Batell , David McKeen , Maxim Pospelov

The Standard Model predicts several rare Higgs boson decay channels, among which are the decays to a Z boson and a photon, to a low-mass lepton pair and a photon, and to a meson and a photon. The observation of some of these decays could…

高能物理 - 实验 · 物理学 2023-07-18 Pawel Bruckman de Renstrom

We discuss the feasibility of seeing a Higgs boson which decays to four partons through a pair of (pseudo-)scalars at the LHC. We restrict our search to Higgs bosons produced in association with a W/Z boson at high transverse momentum. We…

高能物理 - 唯象学 · 物理学 2011-06-13 David E. Kaplan , Matthew McEvoy

We study the contribution of the antisymmetric tensor unparticle mediation to the diphoton production rate of the Higgs boson and try to explain the discrepancy between the measured value of the decay width of the discovered new resonance…

高能物理 - 唯象学 · 物理学 2015-06-12 E. O. Iltan

Many new physics scenarios predict multi-photon Higgs resonances. One such scenario is the dark axion portal model. The primary decay chain that we study is the Higgs to dark photon ($\gamma_D$) pairs that subsequently decay into a photon…

高能物理 - 唯象学 · 物理学 2023-05-02 Samuel D. Lane , Hye-Sung Lee , Ian M. Lewis

A search for a Higgs boson decaying into invisible particles is performed using the data collected at LEP by the L3 experiment at centre-of-mass energies of 183 GeV and 189 GeV. The integrated luminosities are respectively 55.3 pb^-1 and…

高能物理 - 实验 · 物理学 2012-08-27 L3 Collaboration

Results are reported on a search for decays of a pseudoscalar A boson into a Z boson and a light scalar h boson, where the Z boson decays into a pair of oppositely-charged electrons or muons, and the h boson decays into b anti-b. The search…

高能物理 - 实验 · 物理学 2015-07-24 CMS Collaboration

Exotic decays of the Standard Model-like Higgs boson into beyond-the-Standard Model particles are predicted in a wide range of well-motivated theories. The enormous samples of Higgs bosons that have been and will be produced at the Large…

高能物理 - 唯象学 · 物理学 2022-10-12 Maria Cepeda , Stefania Gori , Verena Martinez Outschoorn , Jessie Shelton

This Letter presents a search for exotic decays of the Higgs boson to a pair of new (pseudo)scalar particles, $H\to aa$, where the $a$ particle has a mass in the range 20-60 GeV, and where one of the $a$ bosons decays into a pair of photons…

高能物理 - 实验 · 物理学 2018-06-27 ATLAS Collaboration

This review is devoted to the study of the mechanism of electroweak symmetry breaking and this first part focuses on the Higgs particle of the Standard Model. The fundamental properties of the Higgs boson are reviewed and its decay modes…

高能物理 - 唯象学 · 物理学 2009-09-29 Abdelhak Djouadi

This review is based on the talk presented at the SUSY 2012 (Beijing). The new particle around 125 GeV observed at the Large Hadron Collider (LHC) is almost consistent with the standard model Higgs boson, except that the diphoton decay mode…

高能物理 - 唯象学 · 物理学 2012-12-24 Jung Chang , Kingman Cheung , Po-Yan Tseng , Tzu-Chiang Yuan