Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Matsedonskyi, Oleksii"'
Autor:
Matsedonskyi, Oleksii
Publikováno v:
JHEP 08 (2024), 170
If the gradient of a probability distribution on a landscape of vacua aligns with the variation of some fundamental parameter, the parameter may be likely to take some non-generic value. Such non-generic values can be associated to critical boundarie
Externí odkaz:
http://arxiv.org/abs/2311.10139
Electroweak Baryogenesis (EWBG) paired with the Composite Higgs (CH) scenario provides a well-motivated and testable framework for addressing the questions of the origin of the matter-antimatter asymmetry and the naturalness of the electroweak scale.
Externí odkaz:
http://arxiv.org/abs/2307.14426
We present an update on the status of electroweak baryogenesis in minimal composite Higgs models. The particularity of this framework is that the electroweak phase transition can proceed simultaneously with the confinement phase transition of the new
Externí odkaz:
http://arxiv.org/abs/2212.11953
The dilaton is predicted in various extensions of the standard model containing sectors with an approximate spontaneously-broken conformal invariance. As a Goldstone boson of a spontaneously broken symmetry, the dilaton can naturally be one of the li
Externí odkaz:
http://arxiv.org/abs/2212.00056
Electroweak baryogenesis (EWBG) offers a compelling narrative for the generation of the baryon asymmetry, however it cannot be realised in the Standard Model, and leads to severe experimental tensions in the Minimal Supersymmetric Standard Model (MSS
Externí odkaz:
http://arxiv.org/abs/2211.09147
Restoration of the electroweak symmetry at temperatures around the Higgs mass is linked to tight phenomenological constraints on many baryogenesis scenarios. A potential remedy can be found in mechanisms of electroweak symmetry non-restoration (SNR),
Externí odkaz:
http://arxiv.org/abs/2107.07560
Autor:
Matsedonskyi, Oleksii
We analyse a possible adjustment of Twin Higgs models allowing to have broken electroweak (EW) symmetry at all temperatures below the sigma-model scale $\sim 1$TeV. The modification consists of increasing the Yukawa couplings of the twins of light SM
Externí odkaz:
http://arxiv.org/abs/2008.13725
Spin-0 singlets arise in well-motivated extensions of the Standard Model. Their lifetime determines the best search strategies at hadron and lepton colliders. To cover a large range of singlet decay lengths, we investigate bounds from Higgs decays in
Externí odkaz:
http://arxiv.org/abs/2008.12773
Publikováno v:
Phys. Rev. D 104, 015012 (2021)
We study the recent \XeT excess in context of solar scalar, specifically in the framework of Higgs-portal and the relaxion model. We show that $m_\phi = 1.9\,\keV$ and $g_{\phi e}=2.4\times 10^{-14}$ can explain the observed excess in science run 1 (
Externí odkaz:
http://arxiv.org/abs/2006.14568
Autor:
Banerjee, Abhishek, Kim, Hyungjin, Matsedonskyi, Oleksii, Perez, Gilad, Safronova, Marianna S.
Publikováno v:
JHEP 07(2020)153
Cosmological relaxation of the electroweak scale is an attractive scenario addressing the gauge hierarchy problem. Its main actor, the relaxion, is a light spin-zero field which dynamically relaxes the Higgs mass with respect to its natural large val
Externí odkaz:
http://arxiv.org/abs/2004.02899