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Primordial Black Holes and Cosmological Phase Transitions Report ...

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Contents<br />

List of Figures vii<br />

List of Tables xii<br />

Acronyms xiv<br />

Physical Constants <strong>and</strong> Parameters xvi<br />

Preface xvii<br />

1 The <strong>Primordial</strong> Universe 1<br />

1.1 Relativistic cosmology . . . . . . . . . . . . . . . . . . . . . . . . 1<br />

1.2 The Universe Timeline . . . . . . . . . . . . . . . . . . . . . . . . 8<br />

1.3 Inflation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13<br />

1.4 <strong>Cosmological</strong> phase transitions . . . . . . . . . . . . . . . . . . . 18<br />

1.5 The Lambda–Cold Dark Matter Model . . . . . . . . . . . . . . . 20<br />

1.6 The scale factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23<br />

1.7 The Cosmic Microwave Background temperature . . . . . . . . . 28<br />

1.8 The St<strong>and</strong>ard Model of Particle Physics . . . . . . . . . . . . . . 33<br />

1.9 The Minimal Supersymmetric extension of the SMPP . . . . . . 43<br />

1.10 Degrees of freedom . . . . . . . . . . . . . . . . . . . . . . . . . . 46<br />

2 The QCD phase transition 59<br />

2.1 The QCD transition mechanism . . . . . . . . . . . . . . . . . . . 59<br />

2.2 Signatures of the QCD transition . . . . . . . . . . . . . . . . . . 66<br />

2.3 QCD models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68<br />

2.3.1 The Bag Model . . . . . . . . . . . . . . . . . . . . . . . . 69<br />

2.3.2 Lattice Fit . . . . . . . . . . . . . . . . . . . . . . . . . . 72<br />

2.3.3 Crossover . . . . . . . . . . . . . . . . . . . . . . . . . . . 75<br />

2.4 The duration of the QCD transition . . . . . . . . . . . . . . . . 78<br />

3 The EW phase transition 86<br />

3.1 The critical temperature . . . . . . . . . . . . . . . . . . . . . . . 87<br />

3.2 EW phase transition models . . . . . . . . . . . . . . . . . . . . . 93<br />

3.2.1 Crossover (SMPP) . . . . . . . . . . . . . . . . . . . . . . 93<br />

3.2.2 Bag Model (MSSM) . . . . . . . . . . . . . . . . . . . . . 96<br />

3.3 The baryogenesis problem . . . . . . . . . . . . . . . . . . . . . . 99<br />

4 The electron–positron annihilation 102<br />

5 Fluctuations 106<br />

5.1 The quantum–to–classical transition . . . . . . . . . . . . . . . . 106<br />

5.2 Density fluctuations . . . . . . . . . . . . . . . . . . . . . . . . . 107<br />

5.3 Fluctuations during the QCD phase transition . . . . . . . . . . 110<br />

5.3.1 Bag Model . . . . . . . . . . . . . . . . . . . . . . . . . . 110<br />

iv

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