DZero

From Gizmodo, Feb. 25, 2016: Physicists from the DZero collaboration have announced the discovery of a new particle, believed to be part of an exotic family called “tetraquarks.”

The DZero experiment will present a special Wine and Cheese seminar, “Observation of a new resonance state in the Bs pi system” this Thursday, Feb. 25, at 4 p.m. in One West. The seminar will be video streamed at http://vms.fnal.gov/asset/livevideo and the slides will be posted at http://theory.fnal.gov/jetp/. Mark your calendar to attend!

Protons have parts that, as mentioned in previous columns, have the not terribly imaginative name of “partons.”