Hints of new physics in bottomonium decays and spectroscopy
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Sanchis Lozano, Miguel Ángel
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Aquest document és un/a article, creat/da en: 2005
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A non-standard light CP-odd Higgs boson could induce a slight (but observable) lepton universality breakdown in Upsilon leptonic decays. Moreover, the mixing between such a pseudoscalar Higgs and ηb states might shift the mass levels of the latter, thereby changing the values of the mΥ(nS)−mηb(nS) splittings predicted in the standard model. Besides, also the ηb width could be broader than expected, with potentially negative consequences for its discovery in both e+e− and hadron colliders. |
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