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相关论文: Composite spin-1 resonances at the LHC

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Observation of the diphoton decay mode of the recently discovered Higgs boson and measurement of some of its properties are reported. The analysis uses the entire dataset collected by the CMS experiment in proton-proton collisions during…

高能物理 - 实验 · 物理学 2014-10-23 CMS Collaboration

We perform a joint analysis of the prediction of composite Higgs models for the discrepancies of the forward-backward asymmetries of top and bottom quarks at Tevatron and LEP+SLC, respectively. We build a two sector model which can be…

高能物理 - 唯象学 · 物理学 2015-05-20 Ezequiel Alvarez , Leandro Da Rold , Alejandro Szynkman

We present the latest ATLAS and CMS measurements of several properties of the Higgs boson, such as signal-strength modifiers for the main production modes, fiducial and differential cross sections, and the Higgs mass. We have analyzed the…

高能物理 - 实验 · 物理学 2017-10-20 Jónatan Piedra

We interpret the potential observation of the 750 GeV di-photon resonance at the LHC in models, in which an $SU(2)$ isospin-singlet scalar boson mixes with the Standard Model (SM) Higgs boson through an angle $\alpha$. Allowing the singlet…

高能物理 - 唯象学 · 物理学 2016-08-31 Kingman Cheung , P. Ko , Jae Sik Lee , Jubin Park , Po-Yan Tseng

We identify and study the signatures of the recently proposed Higgsless models at the Large Hadron Collider (LHC). We concentrate on tests of the mechanism of partial unitarity restoration in the longitudinal vector boson scattering, which…

高能物理 - 唯象学 · 物理学 2009-10-09 Andreas Birkedal , Konstantin Matchev , Maxim Perelstein

The Higgs boson production cross-sections and decay rates depend, within the Standard Model (SM), on a single unknown parameter, the Higgs mass. In composite Higgs models where the Higgs boson emerges as a pseudo-Goldstone boson from a…

高能物理 - 唯象学 · 物理学 2015-03-13 Jose Ramon Espinosa , Christophe Grojean , Margarete Mühlleitner

According to recent measurements, dark matter magnetic dipole moment is strongly constrained. In the composite Higgs models the magnetic dipole moment of the Dirac dark matter fermion and its mass can be suppressed by the approximate U(1)…

高能物理 - 唯象学 · 物理学 2024-12-24 M. G. Belyakova , R. Nevzorov

Signature of heavier charged Higgs boson, much above the top quark mass, is investigated at the LHC Run 2 experiments, following its decay mode via top and bottom quark focusing on both hadronic and leptonic signal final states. The generic…

高能物理 - 唯象学 · 物理学 2019-01-07 Monoranjan Guchait , Aravind H. Vijay

We review that the heavy CP-even MSSM Higgs boson is still a viable candidate to explain the Higgs signal at 125 GeV. This is possible in a highly constrained parameter region, that will be probed by LHC searches for the CP-odd Higgs boson…

高能物理 - 唯象学 · 物理学 2016-12-28 S. Heinemeyer

The gold-plated discovery mode of a Standard Model like Higgs boson at the CERN Large Hadron Collider (LHC) is the H -> Z^0 Z^0 decay mode. To find and then measure the properties of the Higgs, it is crucial to have the most precise…

高能物理 - 唯象学 · 物理学 2014-11-17 C. Balazs , C. -P. Yuan

We explore the room for possible deviations from the Standard Model (SM) Higgs boson coupling structure in a systematic study of Higgs coupling scale factor benchmark scenarios using the latest signal rate measurements from the Tevatron and…

高能物理 - 唯象学 · 物理学 2014-11-21 Philip Bechtle , Sven Heinemeyer , Oscar Stål , Tim Stefaniak , Georg Weiglein

We investigate the prospects for heavy charged Higgs boson production through the mechanisms pp-bar(pp)->tbH+ +X at the upgraded Fermilab Tevatron and at the upcoming LHC collider at CERN respectively. We focus on the MSSM case at high…

高能物理 - 唯象学 · 物理学 2008-11-26 Alexander Belyaev , David Garcia , Jaume Guasch , Joan Sola

Determining the spin and the parity quantum numbers of the recently discovered Higgs-like boson at the LHC is a matter of great importance. In this paper, we consider the possibility of using the kinematics of the tagging jets in Higgs…

高能物理 - 唯象学 · 物理学 2015-06-12 A. Djouadi , R. M. Godbole , B. Mellado , K. Mohan

Composite Higgs models provide an elegant solution to the hierarchy problem present in the Standard Model (SM) and give an alternative pattern leading to the mechanism of Electro-Weak Symmetry Breaking (EWSB). We present an analysis of the…

高能物理 - 唯象学 · 物理学 2017-05-11 D. Barducci , A. Belyaev , M. S. Brown , S. De Curtis , S. Moretti , G. M. Pruna

A new boson with mass ~125 GeV and properties similar to the Standard Model Higgs has been discovered by both the ATLAS and CMS collaborations, with significant observation in the ZZ* to 4 leptons and the diphoton channels. In this work we…

高能物理 - 唯象学 · 物理学 2015-06-15 Aielet Efrati , Daniel Grossman , Yonit Hochberg

LHC searches for BSM resonances in $l^+ l^-, \, jj, \, t\bar{t}, \gamma \gamma$ and $VV$ final states have so far not resulted in discovery of new physics. Current results set lower limits on mass scales of new physics resonances well into…

高能物理 - 唯象学 · 物理学 2017-04-11 Mihailo Backović , Thomas Flacke , Bithika Jain , Seung J. Lee

We study models that interpolate between an elementary and a composite Higgs boson. Such models, arising in theories with new vector-like fermions with electro-weak quantum numbers and charged under a confining gauge interaction, are…

高能物理 - 唯象学 · 物理学 2018-08-29 Daniele Barducci , Stefania De Curtis , Michele Redi , Andrea Tesi

In these proceedings I cover the latest results on the production and decay of the recently discovered Higgs boson. While the spin and properties of the new boson, such as its mass and couplings to bosons and fermions, are covered in a…

高能物理 - 实验 · 物理学 2013-10-23 Greg Landsberg

Composite Higgs models provide a natural, non-supersymmetric solution to the hierarchy problem. In these models, one or more sets of heavy top-partners are typically introduced. Some of these new quarks can be relatively light, with a mass…

高能物理 - 唯象学 · 物理学 2014-11-21 Guenther Dissertori , Elisabetta Furlan , Filip Moortgat , Pascal Nef

We study previously introduced models of pseudo Nambu-Goldstone boson Higgs from linearly realized minimal coset SO(5)/SO(4) and matter in the fundamental in supersymmetric theories. Partial compositeness is at work for top and electroweak…

高能物理 - 唯象学 · 物理学 2015-01-14 Alberto Parolini