Aug 4 – 8, 2015
America/Detroit timezone

Search for a new pi0-like particle at BABAR

Aug 5, 2015, 2:15 PM
Vandenberg (Michigan League)


Michigan League

BSM Low Energy BSM Physics


Alexandre Beaulieu (University of Victoria)


We report on a search for a new pi0-like particle produced in association with a tau-lepton pair at BABAR. These objects, with similar masses and decay modes to neutral pions, could provide an explanation for the apparent non-asymptotic behavior of the pion-photon transition form factor observed by BABAR. No significant signal is observed, and limits on the production cross sections are found to lie below the values needed to explain the excess observed in the form factor data over the asymptotic limit.
Oral or Poster Presentation Oral

Primary author

Frank Porter (Caltech)

Presentation materials