An introduction to the quark model
An introduction to the quark model
An introduction to the quark model
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Few-charge systems His<strong>to</strong>ry of <strong>the</strong> <strong>quark</strong> <strong>model</strong> Mesons Baryons Multi<strong>quark</strong>s and o<strong>the</strong>r exotics Outlook<br />
Wave function at <strong>the</strong> origin<br />
|Φ(0]| 2 governs most decays, in particular lep<strong>to</strong>nic width of<br />
charmonium<br />
Schwinger<br />
pn = |Φn(0)| 2 = 1<br />
4 π u′ n(0) 2 .<br />
u ′ (0) 2 ∞<br />
= 2 µ<br />
0<br />
dV<br />
dr u2 (r) dr .<br />
pn is independent of n for a linear potential<br />
If V ′′ (r) has a given sign, pn ↗ or ↘<br />
JMR Quark Model