Particle Physics - FSU Physics Department
Particle Physics - FSU Physics Department
Particle Physics - FSU Physics Department
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Electroweak interactions<br />
leptons (and also quarks)<br />
carry a “weak charge”<br />
(in addition to usual<br />
electric charge)<br />
they interact exchanging<br />
• neutral EW force<br />
carriers: photon γ, Z 0<br />
<br />
• charged EW force<br />
carriers: W ±<br />
theory describing EW<br />
interaction is gauge<br />
theory; gauge symmetry<br />
group<br />
SU(2)xU(1)<br />
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