Zobrazeno 1 - 10
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pro vyhledávání: '"top, decay"'
We study possible non-standard $tuZ$ and $tcZ$ couplings, which induce flavor-changing neutral-current decays of the top quark, in the effective-Lagrangian framework. The corresponding interaction Lagrangian comes from several $SU(3) \times SU(2) \ti
Externí odkaz:
http://arxiv.org/abs/1909.06150
We give a simple physical argument to understand the observation that the angular distribution of the top decay lepton depends only on the polarisation of the top and is independent of any anomalous $tbW$ coupling to linear order.
Comment: 4 pag
Comment: 4 pag
Externí odkaz:
http://arxiv.org/abs/1809.06285
We write down the four-dimensional fully differential decay distribution for the top quark decay $t \to Wb \to \ell \nu b$. We discuss how its eight physical parameters can be measured, either with a global fit or with the use of selected one-dimensi
Externí odkaz:
http://arxiv.org/abs/1702.03297
While current ATLAS and CMS measurements exclude a light charged Higgs ($m_{H^\pm}<160$ GeV) for most of the parameter region in the context of the MSSM scenarios, these bounds are significantly weakened in the Type II 2HDM once the exotic decay chan
Externí odkaz:
http://arxiv.org/abs/1504.06624
Publikováno v:
Phys. Rev. D 94, 094038 (2016)
Models beyond the Standard Model with extra scalars have been highly motivated by the recent discovery of a Higgs boson. The Two Higgs Doublet Model Type III considers the most general case for the scalar potential, allowing mixing between neutral CP
Externí odkaz:
http://arxiv.org/abs/1503.04391
Autor:
Degrande, Celine
After a short introduction to effective field theories, most of their features are illustrated using the top decay. The effects of heavy new physics on the top decay are computed and the constraints on the coefficients of the dimension-six operators
Externí odkaz:
http://arxiv.org/abs/1302.1101
We study the decay $t\rightarrow c\gamma$ with flavor-changing neutral interactions in scalar sector of the type III Two Higgs Doublet Model (THDM-III) with mixing between neutral scalar fields as a result of considering the most general scalar poten
Externí odkaz:
http://arxiv.org/abs/1407.3318
Autor:
Nejad, S. Mohammad Moosavi
Publikováno v:
Eur.Phys.J. C72 (2012) 2224
We present our analytic results for the NLO corrections to the partial decay width $t\to H^+b$ followed by $b\to BX$ for nonzero b-quark mass ($m_b\neq 0$) in the Fixed-Flavor-Number scheme (FFNs). To make our predictions for the energy distribution
Externí odkaz:
http://arxiv.org/abs/1205.6139
The rare top decay t-> c l+l-, which involves flavor violation, is studied as a possible probe of new physics. This decay is analyzed with the simplest Standard Model extensions with additional gauge symmetry formalism. The considered extension is th
Externí odkaz:
http://arxiv.org/abs/1203.6889
Publikováno v:
Physics Letters B, Vol 790, Iss , Pp 322-325 (2019)
We give a simple physical argument to understand the observation that the angular distribution of the top decay lepton depends only on the polarisation of the top and is independent of any anomalous tbW coupling to linear order. Keywords: Top quark,
Externí odkaz:
https://doaj.org/article/ca6d7887e48946bd8ead5bedc6ab2e6f
