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Old 16-November-2007, 04:11 PM
Fortunate Fortunate is offline
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Default Physicists spot unusual charged meson

Quote:
Physicists at the Belle experiment at the KEK laboratory in Japan have discovered a new particle that provides the best evidence yet that some mesons contain four quarks rather than the usual two.
http://physicsworld.com/cws/article/...E48C7166675B96

Quote:
...the Belle physicists believe that it could be a four-quark state comprising up, anti-down, charm and anti-charm quarks.
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