منابع مشابه
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Measurements of CP asymmetries in B decays will soon be made at B factories and hadron machines. In light of this, we review and update the profile of the CKM unitarity triangle and the resulting CP asymmetries in B decays. This is done both in the standard model and in several variants of the minimal supersymmetric standard model (MSSM), which are characterized by a single phase in the quark f...
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In this talk I summarize a part of the work done in a recent collaboration with C. 1. We analyze the observed discrepancy between R b (≡ Γ b /Γ had) as measured at LEP and its standard model value for signals of new physics. The focus is thereby put on new physics that manifests itself through heavy quark mixing. Heavy quark mixing affects the measured value of R b in two ways: at tree level (b...
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Here Dμν(k) is the renormalised dressed gluon propagator; k = p− q; Γν(q, p) is the renormalised dressed quark-gluon vertex; and Z1F(μ,Λ), Z2(μ,Λ) and Z4(μ,Λ) are, respectively, renormalisation constants for the quarkgluon vertex, quark wave function and currentquark mass. In Eq. (2), ∫ Λ q := ∫ Λ dq/(2π) denotes an integral with a translationally invariant ultraviolet regularization at mass-sc...
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The top quark seesaw mechanism offers a method for constructing a composite Higgs field without the usual difficulties that accompany traditional technicolor or topcolor theories. The focus of this article is to study the phenomenology of the new physics required by this mechanism. After establishing a set of criteria for a plausible top quark seesaw theory, we develop two models, the first of ...
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ژورنال
عنوان ژورنال: Le Journal de Physique Colloques
سال: 1982
ISSN: 0449-1947
DOI: 10.1051/jphyscol:1982346