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Related papers: Unparticle Dark Matter

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In a class of the gauge-Higgs unification models the 4D neutral Higgs boson, which is a part of the extra-dimensional component of the gauge fields, becomes absolutely stable as a consequence of the gauge invariance and dynamically…

High Energy Physics - Phenomenology · Physics 2010-04-29 Yutaka Hosotani , Pyungwon Ko , Minoru Tanaka

The most recent results of searches at the LHC for the Higgs boson h have turned up possible hints of such a particle with mass m_h about 125 GeV consistent with standard model (SM) expectations. This has many potential implications for the…

High Energy Physics - Phenomenology · Physics 2012-06-08 Xiao-Gang He , Bo Ren , Jusak Tandean

Triggering the electroweak symmetry breaking may not be the only key role played by the Higgs boson in particle physics. In a recently proposed warped five-dimensional $SO(5)\otimes U(1)$ gauge-Higgs unification model the Higgs boson can…

High Energy Physics - Phenomenology · Physics 2012-09-03 Alexandre Alves

Recently, conceptually new physics beyond the Standard Model has been proposed, where a hidden conformal sector provides ``unparticle'' which couples to the Standard Model sector through higher dimensional operators in low energy effective…

High Energy Physics - Phenomenology · Physics 2008-11-26 Tatsuru Kikuchi , Nobuchika Okada

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…

High Energy Physics - Phenomenology · Physics 2015-03-13 Yutaka Hosotani

We reconsider Higgs boson invisible decays into Dark Matter in the light of recent Higgs searches at the LHC. Present hints in the CMS and ATLAS data favor a non-standard Higgs boson with approximately 50% invisible branching ratio, and…

High Energy Physics - Phenomenology · Physics 2015-05-30 Martti Raidal , Alessandro Strumia

The Standard Model (SM) plus a real gauge-singlet scalar field dubbed darkon (SM+D) is the simplest model possessing a weakly interacting massive particle (WIMP) dark-matter candidate. In this model, the parameters are constrained from dark…

High Energy Physics - Phenomenology · Physics 2015-03-18 Yi Cai , Xiao-Gang He , Bo Ren

The CDMS Collaboration has reported two candidate events for dark matter. If the events are due to the elastic scattering of dark matter, the dark matter would be a WIMP dark matter with its mass of the order of 10-100GeV and its scattering…

High Energy Physics - Phenomenology · Physics 2010-07-29 Masaki Asano , Shigeki Matsumoto , Masato Senami , Hiroaki Sugiyama

Recent LHC results suggest a standard model (SM)-like Higgs boson in the vicinity of 125 GeV with no clear indications yet of physics beyond the SM. At the same time, the SM is incomplete, since additional dynamics are required to…

High Energy Physics - Phenomenology · Physics 2015-06-04 Clifford Cheung , Michele Papucci , Kathryn M. Zurek

The lack of evidence for low energy supersymmetry at the LHC implies a supersymmetry scale in excess a TeV. While this is consistent (and even helpful) with a Higgs boson mass at $\approx$ 125 GeV, simple supersymmetric models with scalar…

High Energy Physics - Phenomenology · Physics 2016-04-26 Keith A. Olive

Recent LHC searches have not found a clear signal of the Higgs boson h of the standard model (SM) with three or four families in the mass range m_h = 120-600 GeV. If the Higgs had an unexpectedly large invisible branching ratio, the…

High Energy Physics - Phenomenology · Physics 2011-10-28 Xiao-Gang He , Jusak Tandean

We investigate whether it is possible within the NMSSM to describe simultaneously a correct dark matter relic density complying with the latest null results from the LZ experiment, an extra Higgs boson with a mass of ~95 GeV visible in the…

High Energy Physics - Phenomenology · Physics 2024-05-03 Ulrich Ellwanger , Cyril Hugonie

We examine the Inert Doublet Model in light of the discovery of a Higgs-like boson with a mass of roughly 126 GeV at the LHC. We evaluate one-loop corrections to the scalar masses and perform a numerical solution of the one-loop…

High Energy Physics - Phenomenology · Physics 2013-09-26 A. Goudelis , B. Herrmann , O. Stål

The Mirror Matter or Exact Parity Model sees every standard particle, including the physical neutral Higgs boson, paired with a parity partner. The unbroken parity symmetry forces the mass eigenstate Higgs bosons to be maximal mixtures of…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Yu. Ignatiev , R. R. Volkas

After recalling the motivations for expecting supersymmetry to appear at energies below 1 TeV, the reasons why the lightest supersymmetric particle is an ideal candidate for cold dark matter are reviewed from a historical perspective.…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis

Dark Matter (DM), arising from an Inert Higgs Doublet, may either be light, below the $W$ mass, or heavy, above about 525 GeV. While the light region may soon be excluded, the heavy region is known to be very difficult to probe with either…

High Energy Physics - Phenomenology · Physics 2015-07-31 Venus Keus , Stephen F. King , Stefano Moretti , Dorota Sokolowska

A vector-like colorless fermion doublet and a singlet added to the Standard Model allow a consistent interpretation of dark matter in terms of the lightest neutral particle, as they may help in obtaining successful gauge coupling…

High Energy Physics - Phenomenology · Physics 2008-11-26 Francesco D'Eramo

We discuss a scalar Dark Matter candidate from the Inert Doublet Model in light of discovery of a 125 GeV SM-like Higgs boson at the LHC. We explore the possibility of using the recent and future data from LHC experiments, namely the Higgs…

High Energy Physics - Phenomenology · Physics 2013-09-16 Dorota Sokolowska

We propose a model that introduces a supersymmetric unparticle operator in the minimal supersymmetric Standard Model. We analyze the lowest dimension operator involving an unparticle. This operator behaves as a Standard Model gauge singlet…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. G. Deshpande , Xiao-Gang He , Jing Jiang

In the unified subquark model of all fundamental particles and forces, the mass of the Higgs boson in the standard model of electroweak interactions ($m_H$) is predicted to be about $2\sqrt{6}m_W/3$ (where $m_W$ is the mass of the charged…

High Energy Physics - Phenomenology · Physics 2015-06-18 Hidezumi Terazawa , Masaki Yasue
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