Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Kachanovich, A."'
Autor:
Kachanovich, Aliaksei, Nišandžić, Ivan
We present new calculations of the leading-order one-loop amplitude and the decay rate for $H\to \nu \bar{\nu} \gamma$ within the standard model, employing reduction to a set of basic Passarino-Veltman functions resulting in more concise expressions
Externí odkaz:
http://arxiv.org/abs/2405.16239
We study the non-abelian $SU(2)_D$ extension of the $U(1)_D$ Stueckelberg portal, which plays a role of the mediator between the Standard Model (SM) and Dark Sector (DS). This portal is specified by the Stueckelberg mechanism for generation of dark g
Externí odkaz:
http://arxiv.org/abs/2210.05555
We propose an extension of the Standard Model (SM) with a $U_{A'}(1)$ gauge invariant dark dector connected to the SM via a new portal -- the Stueckelberg portal, arising in the framework of dark photon $A'$ mass generation via Stueckelberg mechanism
Externí odkaz:
http://arxiv.org/abs/2111.12522
The decay $H\to \ell^+\ell^- \gamma$, $\ell=e,\mu$, receives contributions from $H\to Z[\to \ell^+\ell^-] \gamma$ and a non-resonant contribution, both of which are loop-induced. We describe how one can separate these sub-processes in a gauge-indepen
Externí odkaz:
http://arxiv.org/abs/2109.04426
Autor:
Kachanovich, Aliaksei
I present new results for the Standard-Model predictions of the differential decay rates for $H\to \ell^{+} \ell^{-} \gamma$, where $\ell=e, \mu$, and the forward-backward asymmetries defined in terms of the flight direction of the photon correspondi
Externí odkaz:
http://arxiv.org/abs/2011.14019
We consider a Higgs portal model in which the 125-GeV Higgs boson mixes with a light singlet mediator $h_2$ coupling to particles of a Dark Sector and study potential $b\to s h_2$ decays in the Belle II experiment. Multiplying the gauge-dependent off
Externí odkaz:
http://arxiv.org/abs/2003.01788
Publikováno v:
Phys. Rev. D 101, 073003 (2020)
We present new calculations of the differential decay rates for $H\to \ell^+\ell^- \gamma$ with $\ell=e$ or $\mu$ in the Standard Model. The branching fractions and forward-backward asymmetries, defined in terms of the flight direction of the photon
Externí odkaz:
http://arxiv.org/abs/2001.06516
Autor:
Kachanovich, Aliaksei, Blaschke, David
We propose a description of the Higgs boson as top-antitop quark bound state within a nonlocal relativistic quark model of Nambu - Jona-Lasinio type. In contrast to model with local four-fermion interaction, the mass of the scalar bound state can be
Externí odkaz:
http://arxiv.org/abs/1610.05014
Publikováno v:
Phys. Rev. D 94, 123010 (2016)
We study thermodynamic and transport properties for the isotropic color-spin-locking (iso-CSL) phase of two-flavor superconducting quark matter under compact star constraints within a NJL-type chiral quark model. Chiral symmetry breaking and the phas
Externí odkaz:
http://arxiv.org/abs/1609.05201
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 7, Pp 1-9 (2020)
Abstract We consider a Higgs portal model in which the 125-GeV Higgs boson mixes with a light singlet mediator $$h_2$$ h2 coupling to particles of a Dark Sector and study potential $$b\rightarrow s h_2$$ b→sh2 decays in the Belle II experiment. Mul
Externí odkaz:
https://doaj.org/article/db7738720bed404ebf7a1a4573bfb59f
