Superheavy-quarkonium decays with two Higgs doublets
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1989-01-01
Autores
Ãboli, O. J.P.
Natale, A. A. [UNESP]
Simo, F. R.A.
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We study the decay modes of a S-wave superheavy quarkonium, formed by a possible fourth-generation quark in two-Higgs-doublet models. Because of the enhancement of Yukawa couplings and longitudinal weak bosons the main decays of these superheavy states will be into neutral scalar bosons Hi0Hj0 and a charged scalar plus a W boson. If the HW± channel is open for the (1 - ) superheavy quarkonium it will provide a quite clean signal for a charged Higgs boson. The decay of the pseudoscalar quarkonium (0-+) into a Z boson and one of the scalars will also be present in a large amount. © 1989 The American Physical Society.
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Physical Review D, v. 39, n. 9, p. 2668-2677, 1989.