Word: meson
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...Physicist Murray Gell-Mann's theory, "The Eight-Fold Way." Gell-Mann lumped the known resonances together in orderly octets; their snowflake-like symmetries left slots for particles that were still unknown. But one octet seemed out of kilter. Unless, predicted Gell-Mann, a particle designated the phi-meson was found...
...hint of the phi-meson came from
...Faculty of Sciences have exerted fully as power as the president; since resigned, internal affairs have on momentum he supplied. President Pusey and Edward S. Mason have at different times served as acting dean neither in any real sense "replaced" Bundy. In this "acting-only" capacity, for example, Meson was understandably hesitant about broad planning in educational policy--a field of obvious importance and a primary responsibility of the Dean of the Faculty...
...will ever see the little particle, but theoretical physicists-those mystic prophets of science-calculated several years ago that an unknown heavy meson probably can exist. Like the neutron, they figured, it would have no electric charge, so it would leave no track in a cloud or bubble chamber. They were sure it would disintegrate so quickly that other signs of its brief career would be hard to find. But the theoreticians considered the undiscovered particle so important that they named it omega in advance, implying that it might be the last unknown particle left in nature's locker...
...lambda and one anti-lambda particle. Since both are neutral electrically, they leave no tracks in the liquid hydrogen, but after a short, invisible career, each decays into track-leaving particles by which it can be identified. The lambda ( 2) turns into a proton and a negative pi meson, both of which go off the picture leaving strong curved tracks. The anti-lambda (3) turns into an antiproton and a positive pi meson. The positive pi meson goes off the picture, but the antiproton hits a proton (4), creating two negative and two positive pi mesons, which shoot...