Illustration

Concept Art: B to D-Star-Tau-Nu

Concept Art: B to D-Star-Tau-Nu

The latest results from the BaBar experiment may suggest a surplus over Standard Model predictions of a type of particle decay called "B to D-star-tau-nu." In this conceptual art, an electron and positron collide, resulting in a B meson (not shown) and an antimatter B-bar meson, which then decays into a D meson and a tau lepton as well as a smaller antineutrino.

Greg Stewart/SLAC National Accelerator Laboratory

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