Search for Dynamical Symmetry Breaking Physics by Using Top Quark

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We report first results from the investigation on probing dynamical mechanism of the electroweak symmetry breaking using top quark. We consider the case where the top mass originates from a fermion-antifermion pair condensate, which necessitates (i)strong interaction to cause condensation, and (ii)4-fermi interaction to give top mass. From the observed top mass and the unitarity constraint, we obtain, for the 4-fermi interaction (ii), lower bounds for its strength and upper bounds for its intrinsic new mass scale as we vary the type of the strong interaction (i). Bethe-Salpeter and Schwinger-Dyson equations are solved numerically to study the dynamical symmetry breaking effect semi-quantitatively.
10 pages, LaTex without figures, PS files of figures or hard copy may be obtained upon request (asaka@tuhep.phys.tohoku.ac.jp)

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/45513

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/9505371
 http://arxiv.org/abs/hep-ph/9505371

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arXiv