CIPANP 2018 - Thirteenth Conference on the Intersections of Particle and Nuclear Physics

New Results on Low-Energy Exclusive Hadronic Cross Sections from BaBar and Implications for g-2 of the Muon

31 May 2018, 17:10

20m

East Foyer | Larkspur/Mesquite Rooms (Hyatt Regency Indian Wells Conference Center)

Parallel PPHI PPHI / TSEI

Speaker

Prof. Bill GARY (University of California, Riverside)

Description

The BABAR Collaboration has an extensive program studying hadronic cross sections in low-energy $e^{+}{e}^{-}$ collisions, accessible through the selection of events with initial-state photon radiation. The measurements allow significant improvements in the precision of the standard model prediction for the muon anomalous magnetic moment. Recent results on the ${\pi }^{+}{\pi }^{-}{\pi }^0{\pi }^0$ final state and on $KK\pi \pi$ final states are presented. The $\pi \pi \pi \pi$ channel is one of the most important for the muon g-2 calculation, while our measurements of the $KK\pi \pi$ channels obviate the need to rely on isospin relations and greatly improve the results in these channels.

Presentation materials

Slides

149-0-gary-cipanp-2018.pdf