Elementary Processes at High Energy Pt A

Contents

Part A

Contributors

Foreword

Opening Lecture


1. Cabibbo: Electron Positron Annihilations

1. Introduction

2. The single Photon Channel

3. New Particles and the Photon Propagator

4. Weak Interactions

5. Annihilation into Hadrons

6. Hadron Processes at Higher Energies

References

Discussion

Theoretical Lectures

A. Martin: Rigorous Results from Field Theory and Unitarity

1. Introduction

2. Review of field theoretical results on scattering amplitude

3. Positivity and extension of dispersion relations

4. Upper bounds on the high energy amplitudes

4.1. The spinless Case

4.2. Superconvergence Relations

4.3. Generalizations of the Froissart Bound to Nondiagonal Processes

5. The Question of the Pomeranchuk Theorem

6. Lower bounds on the Forward Amplitude

7. Lower Bounds for Large Momentum Transfers: Form Factors and Largeangle Scattering

Bibliography

References

Discussion 1

Discussion 2

Discussion 3

T. D. Lee: A Finite Theory of Quantum Electrodynamics

1. Introduction

2. Indefinite Metric and Unitarity

3. Modified Photon Field

4. Modified Fermion Field

5. Feynman Diagrams

6. Experimental Consequences

7. Causality

8. Remarks

References

Discussion 1

Discussion 2

G. Veneziano: Narrow-Resonance Models Compatible with Duality and Their Developments

Introduction

1. Duality and Dual Resonance Models

2. The 4-point Function, Derivation and Properties

3. The n-point Function for Scalar Particles

3.1. Crossing, Duality and Projective Transformations

3.2. Koba-Nielsen Form

3.3. Chan Form

3.4. Properties

4. The Group of Projective Transformations

5. Manifestly Dual Formulation with Operators

5.1. Level Structure and States of Negative Norm

5.2. Duality Properties

5.3. Ward Identities and Ghost Cancellation

6. Further Developments

6.1. Developments at the Tree-approximation Level

6.2. Unitarization Attempts

References

Discussion 1

Discussion 2

Discussion 3

H. Harari: Models for Hadronic Reactions: Duality, Absorption and Quarks

1. Introduction

2. Concluding Remarks

References

Discussion 1

Discussion 2

Discussion 3

Discussion 4

Review Lectures

W. Thirring: Why is Gravitation Fascinating?

1. Introduction

2. Orders of Magnitude

3. Gravitational Collapse

4. Gravitational Radiation

5. Strong Universality

6. The Equivalence Principle

6.1. Constant Gravitational Potential

6.2. Constant Gravitational Field

6.3. Strong and Weak Equivalence

Bibliography

References

Discussion 1

Discussion 2

W. Thirring: A Trip Behind the Schwarzschild Radius

A Trip Behind the Schwarzschild Radius

References

T. D. Lee: Remarks on the