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Stars as Laboratories for Fundamental Physics - MPP Theory Group

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Table of Contents<br />

vii<br />

4.5 Neutrino Opacity (132)<br />

1. El<strong>as</strong>tic Scattering (132) ⋄ 2. Pair Absorption (132) ⋄ 3. Inel<strong>as</strong>tic Scattering<br />

(133)<br />

4.6 Structure Functions (136)<br />

1. Formal Definition (136) ⋄ 2. Nonrelativistic Limit (138) ⋄ 3. The f-Sum<br />

Rule (139) ⋄ 4. Long-Wavelength Properties (141) ⋄ 5. Axion Emission<br />

in the Cl<strong>as</strong>sical Limit (143) ⋄ 6. Cl<strong>as</strong>sical vs. Quantum Result (146) ⋄<br />

7. High-Density Behavior (147)<br />

4.7 Effective Nucleon M<strong>as</strong>s and Coupling (151)<br />

4.8 The URCA Processes (152)<br />

4.9 Novel Ph<strong>as</strong>es of Nuclear Matter (155)<br />

1. Pion Condensate (155) ⋄ 2. Quark Matter (157) ⋄ 3. Bubble Ph<strong>as</strong>e (159)<br />

4.10 Emission of Right-Handed Dirac Neutrinos (160).<br />

5. Two-Photon Coupling of Low-M<strong>as</strong>s Bosons<br />

5.1 Electromagnetic Coupling of Pseudoscalars (165)<br />

5.2 Primakoff Process in <strong>Stars</strong> (168)<br />

1. Screened Cross Section and Emission Rate (168) ⋄ 2. Pl<strong>as</strong>mon Decay<br />

and Coalescence (170) ⋄ 3. Axion Emission from Electromagnetic Pl<strong>as</strong>ma<br />

Fluctuations (172) ⋄ 4. Solar Axion Spectrum (175) ⋄ 5. Globular-Cluster<br />

Bound on g aγ (176)<br />

5.3 Search <strong>for</strong> Cosmic Axions (176)<br />

5.4 Axion-Photon Oscillations (179)<br />

1. Mixing Equations (179) ⋄ 2. Solar Axions (181) ⋄ 3. Shining Light through<br />

Walls (182) ⋄ 4. Vacuum Birefringence (183).<br />

5.5 Astrophysical Magnetic Fields (185)<br />

1. Transitions in Magnetic Fields of <strong>Stars</strong> (185) ⋄ 2. Birefringence in a<br />

Pulsar Magnetosphere (186) ⋄ 3. Conversion of Stellar Arions in the Galactic<br />

Field (188) ⋄ 4. Polarimetry of Distant Radio Sources (190) ⋄ 5. Temperature<br />

Fluctuations in the Cosmic Microwave Background (191).<br />

5.6 Summary of Constraints on g aγ (191)<br />

6. Particle Dispersion and Decays in Media<br />

6.1 Introduction (193)<br />

6.2 Particle Dispersion in Media (196)<br />

1. Refractive Index and Forward Scattering (196) ⋄ 2. Particle Momentum<br />

and Velocity (198) ⋄ 3. Wave-Function Renormalization (200)

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