Jul 16 – 22, 2009
Kraków, Poland
Europe/Warsaw timezone

Search for invisible or lepton-flavor-violating Upsilon decays in BaBar

Jul 18, 2009, 9:30 AM
Large Lecture - Hall B (Kraków, Poland)

Large Lecture - Hall B

Kraków, Poland

The Auditorium Maximum of the Jagiellonian University 33 Krupnicza Street 31-123 Kraków
Higgs and New Physics III. Higgs and New Physics


Prof. Justin ALBERT (Univ. of Victoria)


We present a search for decay of the Y(1S) meson into undetectable final states, using a sample of Y(3S) mesons collected at the PEP-II/BaBar B-factory. We tag the decay of the Y(3S) into the Y(1S) through a pair of charged pions, and measure the rate at which the Y(1S) decays into particles which do not interact with the BaBar detector. Furthermore, we present a search for charged lepton-flavor violating decays Upsilon --> e+ tau- and Upsilon --> mu+ tau- which probes BSM contributions at the TeV mass scales.

Primary authors

Prof. Justin ALBERT (Univ. of Victoria) Paul de Jong (Nikhef)


Presentation materials