Window on Higgs Boson: Fourth Generation $b^\prime$ Decays Revisited

Details Window on Higgs Boson: Fourth Generation $b^\prime$ Decays Revisited Window on Higgs Boson: Fourth Generation $b^\prime$ Decays Revisited

2000-12-04

arxiv.org/abs/hep-ph/0012027v2

Phys.Rev.D64:073016,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, RevTex, 4 eps figures, One more figure, version to be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.64.073016

Direct and indirect searches of the Higgs boson suggest that 113 GeV $\lesssim m_H \lesssim$ 170 GeV is likely. With the LEP era over and the Tevatron Run II search via $p\bar p \to WH+X$ arduous, we revisit a case where $WH$ or $ZH +$ jets could arise via strong $b^\prime\bar b^\prime$ pair production. In contrast to 10 years ago, the tight electroweak constraint on $t^\prime$--$b^\prime$ (hence $t^\prime$--$t$) splitting reduces FCNC $b^\prime\to bZ$, $bH$ rates, making $b^\prime\to cW$ naturally competitive. Such a "cocktail solution" is precisely the mix that could evade the CDF search for $b^\prime\to bZ$, and the $b^\prime$ may well be lurking below the top. In light of the Higgs program, this two-in-one strategy should be pursued.

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