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Fundamental Physics: Gamma-Ray Absorption and Axion-Like Particles - Class 1
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- 1 Intro
- 2 AIM OF MY LECTURES: UNDERSTAND THIS PLOT
- 3 OUTLINE LECTURE 1
- 4 THRESHOLD FOR PAIR PRODUCTION
- 5 CROSS SECTION FOR PAIR PRODUCTION
- 6 BACKGROUND RADIATION FIELDS
- 7 EBL MEASUREMENTS
- 8 INGREDIENTS TO THE EBL: STARS
- 9 ADDITIONAL CONTRIBUTIONS?
- 10 EBL MODELS
- 11 OPTICAL DEPTH
- 12 CONSTRAINING THE EBL WITH GAMMA-RAY OBSERVATIONS
- 13 MODEL THE EBL INGREDIENTS DIRECTLY
- 14 CONCLUSIONS y-RAY ABSORPTION
- 15 PARITY TRANSFORMATION
- 16 CHARGE-PARITY
- 17 AXION SOLVES THE STRONG CP PROBLEM
- 18 AXIONLIKE PARTICLES (ALPs)
- 19 EVOLUTION OF AXION/ALP FIELD IN AN EXPANDING UNIVERSE
- 20 THE AXION / ALP PARAMETER SPACE
