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 />
Heavy <strong>quark</strong>s<br />
Kaon physics always rich,<br />
θ − τ puzzle, P violation, C violation<br />
CP violation in 1964,<br />
Suppression of flavour-changing neutral currents led GIM (1970)<br />
<strong>to</strong> propose ano<strong>the</strong>r Q = 2/3 <strong>quark</strong>, named “charmed” (c)<br />
Not <strong>to</strong>o heavy <strong>to</strong> get <strong>the</strong> GIM mechanism working,<br />
Properties of charmed particles anticipated, in particular<br />
Gaillard, Lee and Rosner,<br />
Including (c¯q), (cqq), (ccq), . . . and (c¯c)<br />
JMR Quark Model