6533b7dcfe1ef96bd127293d

RESEARCH PRODUCT

Searching for new physics in bottomonium decays

Miguel-angel Sanchis-lozano

subject

PhysicsParticle physicsHigh Energy Physics::LatticePhysics beyond the Standard ModelHigh Energy Physics::PhenomenologyUniversality (philosophy)FOS: Physical sciencesObservableQuarkoniumHiggs sectorHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Higgs bosonHigh Energy Physics::ExperimentMixing (physics)Lepton

description

Heavy quarkonium decays can be used to search for New Physics beyond the Standard Model. In particular, a light Higgs boson could induce a slight (but observable) lepton universality breaking in Upsilon decays. In fact, current experimental data from CLEO presented in this Conference seem to point out to this direction within experimental accuracy. Moreover, LEP constraints on a light Higgs mass can be evaded by different models (like MSSM with a CPV Higgs sector) as shown in this Conference. We also consider spectroscopic consequences stemming from a possible mixing between Higgs and bottomonium states leading to discrepancies with the SM expectations (e.g. hyperfine splittings).

https://doi.org/10.22323/1.021.0334