Widdekind Posted June 10, 2010 Share Posted June 10, 2010 The Weak Force couples Up quarks to Down* quarks, which "are linear combinations of the physical quarks d, s, & b [Mass eigenstates ??]", roughly equal to: d* = 0.974 d + 0.227 s + 0.008 b Furthermore, the effective bound-state masses, of the d, s, & b are roughly 340, 486, & 4730 MeV (D.Griffiths. Intro. Elem. Part. (2nd. ed.), pp. 78,135). Using these numbers to calculate the effective bound-state mass, of the Up quark's d* Weak Force interaction partner: <md*> = 0.9742 <md> + 0.2272 <ms> + 0.0082 <mb> = 348 MeV Does that mean, that a Down quark must be energetically excited, by about 8 MeV, in order to couple, through the Weak Force, to an Up quark ?? Link to comment Share on other sites More sharing options...
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