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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2003, Volume 78, Issue 1, Pages 3–7
(Mi jetpl2479)
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This article is cited in 1 scientific paper (total in 1 paper)
Analysis of the $Hb\bar{b}$ coupling constant and $CP$-violation effects at the future $e^+e^-$-collider
V. V. Bragutaa, A. Chalova, A. K. Likhodedab, R. Rosenfeldb a Institute for High Energy Physics, Protvino, Moskovskaya obl.
b Universidade Estadual Paulista
Abstract:
The $e^+e^- \to b\bar{b}\nu \bar {\nu}$ process, where $\upsilon$ is an electron, muon, or $\tau$-lepton neutrino, is analyzed in detail for the general form of the coupling constant of a Higgs boson with $b$ quarks, with the $({m_b}/{v}) (a + i \gamma_5 b) $ parameterization of the $Hb\bar{b}$ interaction. This process is shown to be highly sensitive to this coupling constant. Experiments at the future with $\sqrt{s}= 500-GeV$ linear collider will provide limits of 2 and 20% for deviations of the parameters $a$ and $b$, respectively, from their Standard Model values. Results concerning the $e^+e^- \to b\bar{b} \nu \bar{\nu}$ process in combination with the independent measurements of the partial width ($\Gamma_{H \to b\bar{b}}$ can testify to the $CP$ origin of the Higgs sector of the theory.
Received: 20.05.2003
Citation:
V. V. Braguta, A. Chalov, A. K. Likhoded, R. Rosenfeld, “Analysis of the $Hb\bar{b}$ coupling constant and $CP$-violation effects at the future $e^+e^-$-collider”, Pis'ma v Zh. Èksper. Teoret. Fiz., 78:1 (2003), 3–7; JETP Letters, 78:1 (2003), 1–4
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https://www.mathnet.ru/eng/jetpl2479 https://www.mathnet.ru/eng/jetpl/v78/i1/p3
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Abstract page: | 149 | Full-text PDF : | 52 | References: | 32 |
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