6533b82bfe1ef96bd128df92
RESEARCH PRODUCT
Possible lepton universality breaking in Upsilon decays: a light CP-odd Higgs interpretation and consequences
Miguel-angel Sanchis-lozanosubject
PhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::PhenomenologyHadronObservableAtomic and Molecular Physics and OpticsCosmologyPseudoscalarHiggs fieldHiggs bosonHigh Energy Physics::ExperimentLight dark matterLeptondescription
A light CP-odd Higgs boson mixing with η b hadronic resonances can show up by inducing a slight but observable lepton universality breaking in Upsilon decays. Besides, hyperfine splittings m ϒ ( n S ) − m η b ( n S ) might also be sensitive to the mixing providing another hint of the existence of such a light pseudoscalar Higgs. On the other hand, recent findings from astroparticle and cosmology favouring a light dark matter constituent (with mass about 10 GeV or less) cast a new interest into the search for invisible decays of ϒ resonances performed at B factories.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-09-01 | Nuclear Physics B - Proceedings Supplements |