Download - Electroweak Theory

Transcript
Page 1: Electroweak Theory

QUANTUM FIELD THEORYA Crash Course by Hasan Mohammad

Page 2: Electroweak Theory

Electroweak Interaction

1979 Nobel Prize Physics

What we’ll look at:-Review on Spinors-Massless Dirac Lagrangian-Leptonic Fields/Charges-Gauge Fields/unitary transformations-Weinberg Angle-Spontaneous Symmetry Breaking

Page 3: Electroweak Theory

Right and Left-Handed Spinors

Page 4: Electroweak Theory

Right and Left-Handed Spinors

Page 5: Electroweak Theory

Right and Left-Handed Spinors

Page 6: Electroweak Theory

Massless Dirac Lagrangian

Page 7: Electroweak Theory

Massless Dirac Lagrangian

Page 8: Electroweak Theory

Massless Dirac Lagrangian

Page 9: Electroweak Theory

Leptonic Fields

Page 10: Electroweak Theory

Leptonic Fields

Page 11: Electroweak Theory

Leptonic Fields

Page 12: Electroweak Theory

Leptonic Fields

Page 13: Electroweak Theory

Electroweak Charges

Page 14: Electroweak Theory

Unitary Transformations

Page 15: Electroweak Theory

Unitary Transformations

Page 16: Electroweak Theory

Unitary Transformations

Page 17: Electroweak Theory

Unitary Transformations

Page 18: Electroweak Theory

Unitary Transformations

Page 19: Electroweak Theory

Unitary Transformations

Page 20: Electroweak Theory

Unitary Transformations

Page 21: Electroweak Theory

Unitary Transformations

Page 22: Electroweak Theory

Higgs Symmetry Breaking

Page 23: Electroweak Theory

Higgs Symmetry Breaking

Page 24: Electroweak Theory

Higgs Symmetry Breaking

Page 25: Electroweak Theory

Higgs Symmetry Breaking

Page 26: Electroweak Theory

Higgs Symmetry Breaking

Page 27: Electroweak Theory

Higgs Symmetry Breaking

Page 28: Electroweak Theory

Gauge Masses

Page 29: Electroweak Theory

Gauge Masses

Page 30: Electroweak Theory

Gauge Masses

Page 31: Electroweak Theory

Gauge Masses

Page 32: Electroweak Theory

Gauge Masses

Page 33: Electroweak Theory

Gauge Masses

Page 34: Electroweak Theory
Page 35: Electroweak Theory
Page 36: Electroweak Theory
Page 37: Electroweak Theory

Weinberg Angle

Page 38: Electroweak Theory

Breaking the Symmetry

Page 39: Electroweak Theory
Page 40: Electroweak Theory

Looking for a Mass

Page 41: Electroweak Theory

Photon is massless!

Page 42: Electroweak Theory

Z-Particle Mass

Page 43: Electroweak Theory

Theoretical bounds…

Page 44: Electroweak Theory

•THANK YOU VERY MUCH


Top Related