Effect of the unitary mixing scalar--vector

Details Effect of the unitary mixing scalar--vector Effect of the unitary mixing scalar--vector

1996-06-17

arxiv.org/abs/hep-ph/9607344v1

Phys.Atom.Nucl. 60 (1997) 1179-1185; Yad.Fiz. 60N7 (1997) 1306-1312

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages

Scientific paper

We consider the procedure of dressing of scalar and vector particles when there exists the off--diagonal loop connecting vector and scalar propagators. Instead of single Dyson equations for scalar and vector, we have in this case a system of three equations for coupled full propagators. Using the $\pi-a_1$ system as an example, we discuss the physical meaning of this effect and the renormalization procedure for coupled propagators. The considered effect of the unitary S~--~V mixing may exits also in the "Higgs boson~--~Z~(~W~)" system for extended electroweak models.

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