6533b830fe1ef96bd129712d
RESEARCH PRODUCT
Hints of new physics in bottomonium decays and spectroscopy
Miguel A. Sanchis-lozanosubject
PhysicsNuclear and High Energy PhysicsParticle physicsPhysics beyond the Standard ModelHigh Energy Physics::PhenomenologyHadronFOS: Physical sciencesFísicaObservableAtomic and Molecular Physics and OpticsStandard ModelPseudoscalarHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Higgs bosonHigh Energy Physics::ExperimentMixing (physics)Leptondescription
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 $\eta_b$ states might shift the mass levels of the latter, thereby changing the values of the $m_{\Upsilon(nS)}-m_{\eta_b(nS)}$ splittings predicted in the standard model. Besides, also the $\eta_b$ width could be broader than expected, with potentially negative consequences for its discovery in both $e^+e^-$ and hadron colliders.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-07-28 | Nuclear Physics B - Proceedings Supplements |