Searching for new physics in bottomonium decays
Abstract
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).
4 pages, 1 eps figure, talk given at International Europhysics Conference on HEP, July 21st-27th 2005, Lisboa
4 pages, 1 eps figure, talk given at International Europhysics Conference on HEP, July 21st-27th 2005, Lisboa