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Bayes
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New Meson Detected

05/19/2005 2:42 PM

Particle Physicists have been busy smashing stuff again. This time they observed a new meson in electron-positron collisions. The new meson is a hybrid containing a charm quark, a charm antiquark and a gluon, and was predicted theoretically in 1978. Interestingly the mass of the new meson is much smaller than the predicted value.

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BRodda
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#1

Subjective

05/19/2005 3:15 PM

Could the interaction of the quark and anti-quark be causing errors in the mass measurements?

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Bayes
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#2
In reply to #1

Re:Subjective

05/19/2005 4:25 PM

I don't know. Usually if the mass is wrong its either the experimental measurement was wrong or there was another partical or force the theorists hadn't accounted for.
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Steve Melito
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#3

Quarks

05/19/2005 5:11 PM

I'm betting that pentaquarks really do exist. The lady or gentleman who predicted the discovery of this new meson in 1978 must feel pretty good right now.
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