Charmed Baryon, Bubble Chamber Event
Historic bubble chamber image which led to the discovery of the "charmed baryon," a three-quark particle. The baryon itself decayed too quickly to be captured on film, but its presence can be deduced from the the other observable events shown. A neutrino entered from the lower right (dashed line) and collided with a proton, producing five charged particles - one negative muon, three positive pions, and one negative pion - and a neutral lambda. The momenta and angles of the tracks taken together imply that the lambda and the four pions came from the decay of a charmed sigma particle, with a mass of about billion electron volts.
Size: 2628px × 3558px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -quark, accelerator, atom, baryon, bnl, bubble, chamber, charmed, cloud, collision, decay, discovery, electron, event, historic, history, hydrogen, lambda, muon, neutrino, particle, physics, pion, proton, quark, research, science, sigma, smasher, tracks
