CONTENTS -- Preface -- IN MEMORY OF IAN KOGAN Misha Shifman -- Flavour Structure of Intersecting Brane Models S. A. Abel, J. Santiago and 0. Lebedev -- 1 Introduction -- 2 Intersecting Brane Models and Their Flavour Structure -- 2.1 Yukawa Couplings -- 2.2 Flavour Changing Neutral Currents -- 3 Realistic Quark Masses and Mixing Angles -- 4 Experimental Bounds on the String Scale -- Acknowledgements -- References -- Stringy Solution to Strong CP Violation Problem C. G. Aldazabal, L. E. Ibdnez and A. M. Uranga -- 1 The strong CP-problem -- 2 Removing the strong CP problem -- 2.1 The model -- 2.2 The Wess-Zumino term -- 2.3 Rotating away the strong CP problem -- 2.4 Wess-Zumino terms in string theory -- References -- Phenomenological Prospects of Noncommutative QED L. Alvarez-Gaume and M. A. Vdzquez-Mozo -- Acknowledgments -- References -- Suppressing the Cosmological Open-String Vacua C. Angelantonj -- 1 Introduction -- 2 The Model -- 3 The Vacuum Energy Density -- 4 Conclusions -- Acknowledgements -- References -- Horava-Witten Cosmology R. Arnowitt, J. Dent and B. Dutta -- 1 Introduction -- 2 The 5D Model -- 3 Hubble Expansion Era -- 4 Non-relativistic Matter and Time Dependence -- 5 Randall-Sundrum (RSI) Model -- References -- The Linear Collider Programme G. A. Blair -- 1 Introduction -- 2 The LC Machine -- 3 Higgs Physics -- 4 GigaZ -- 5 Summary -- Acknowledgments -- References -- String Unification of Gauge Couplings with Intersecting D-Branes R. Blumenhagen -- 1 Introduction -- 2 The general set-up -- 3 Gauge couplings -- 4 One loop corrections to the gauge couplings -- 5 Examples -- 6 Outlook -- Acknowledgments -- References -- On String Gas Cosmology at Finite Temperature M, Borunda -- 1 Introduction -- 2 Set up -- 3 Hagedorn regime -- 4 Almost radiation regime -- Acknowledgments -- References.

On Tachyon Kinks from the DBI Action Ph. Brax, J. Mourad and D. A. Steer -- 1 Introduction -- 2 Uncharged solitons and Derrick's theorem -- 3 Charged Solitons -- 4 Conclusion -- References -- Identifying String Relics at AUGER? A. Cafarella and C. Coriano -- 1. Introduction -- 2. String Relics -- 3. Descriptions/Modeling -- 4. Structural Properties of the shower -- 5. Inclusive Multiplicities -- 6. Calibrations -- 7. Conclusions -- Acknowledgements -- References -- A Relief to the Supersymmetric Fine Tuning Problem J. A. Casas, J. R. Espinosa and I. Hidalgo -- 1 The abnormally acute fine tuning problem of the MSSM -- 2 Possible solutions -- 3 Low-scale SUSY breaking -- 4 A concrete model -- 5 Conclusions -- References -- Heterotic String Optical Unification G. Cleaver, B. Dundee, J. Perkins, R. Obousy, E. Kasper, M. Robinson and K. Stone -- 1 Review of Optical Unification -- 2 Flat Directions of String Models -- 3 String Model with Optical Unification Potential -- Acknowledgments -- References -- Varying Alpha, Thresholds and Extra Dimensions T. Dent -- 1 Introduction -- 2 High-scale unification and mass generation -- 3 Varying extra-dimensional radii -- 4 Conclusions -- Acknowledgements -- References -- The Statistics of String/M Theory Vacua M. R. Douglas -- 1 Introduction -- 2 Statistics of vacua -- 2.1 Distribution of quiver gauge theories -- 3 Flux vacua -- 3.1 Counting flux vacua -- 4 Conclusions -- References -- On Cosmologically Induced Hierarchies in String Theory E. Dudas, J. Mourad and C. Timirgaziu -- 1 Introduction -- 2 A cosmological solution in string theory -- 3 Cosmological hierarchies -- 3.1 String frame -- 3.2 Einstein frame -- Acknowledgements -- References -- Constraining Electroweak Physics J. Erler -- Acknowledgments -- References -- A Paradox for Strings in PP-Wave Backgrounds D. B. Fairlie -- 1 Veneziano Duality.

2 PP-wave background duality -- 3 More work to be done! -- References -- Anthropics Versus Determinism in Quantum Gravity A. E. Faraggi -- 1 Introduction -- 2 T-duality -- 3 Realistic string models -- 4 Phase-space duality -- 5 The quantum equivalence postulate -- 6 The role of the self-dual states -- 7 Conclusions -- Acknowledgments -- References -- Towards the Classification of Z2 x Z2 Fermionic Models A. E. Faraggi, C. Kounnas, S. E. M. Nooij and J. Rizos -- 1 Introduction -- 2 The models in the free fermionic formulation -- 2.1 General setup -- 2.2 The spectrum -- 3 Models -- 3.1 The Z2 x Z2 symmetric orbifold -- 3.2 A three family SO (10) model -- 4 Connection with realistic models -- 5 N = 4 liftable models -- 6 Conclusions -- Acknowledgements -- References -- On the Moduli Space for Strings on Group Manifolds S. Forste -- 1 Introduction -- 2 The Bosonic String on a Circle (U(1)R) -- 3 Strings on SU(2) -- 4 Strings on Semisimple Compact Groups -- 5 Conclusions -- Acknowledgments -- References -- AdS/CFT-Inspired Unification at about 4 TeV P. H. Frampton -- 1 Quiver Gauge Theory -- 2 Gauge Couplings -- 3 4 TeV Grand Unification -- 4 Predictivity -- 5 Discussion -- Acknowledgements -- References -- SO(10) Heterotic M-theory Vacua R. S. Garavuso -- 1 Introduction -- 2 Realistic free fermionic models -- 2.1 General structure -- 2.2 Z2 x Z2 correspondence -- 2.3 Nonperturbative top quark Yukawa coupling -- 3 Summary of rules -- 4 Ngen = 3, H = SO(10) vacua -- Acknowledgements -- References -- Lattice Supersymmetry and String Phenomenology J. Giedt -- Acknowledgements -- References -- Gauge Five Brane Moduli in Four Dimensional Heterotic Models J. A. Gray -- 1. Introduction -- 2. Obtaining the effective action -- 2.1. Wrapping up the gauge five brane -- 3. The four dimensional action, Kahler potential and complex structure -- 4. Future work.

Acknowledgements -- References -- Supersymmetric Intersecting D6-Branes and Chiral Models on the T6/(Z4 x Z2) Orbifold G. Honecker -- 1 Introduction -- 2 3-cycles, RR tadpole cancellation and supersymmetry -- 3 A three generation example with Pati-Salam group -- Acknowledgments -- References -- Supersymmetric -Functions, Benchmark Points and Semi-Perturbative Unification J. Jack and D. R. T. Jones -- 1 Introduction -- 1.1 A General Supersymmetric Theory -- 1.2 The Minimal Supersymmetric Standard Model -- 2 The functions -- 3 Scheme Dependence -- 4 The Soft -functions -- 5 Precision QFT and the MSSM -- 5.1 Three Loop Results -- 5.2 Top Mass Sensitivity -- 6 Snowmass Benchmark Points -- 7 Semi-Perturbative Unification -- 8 Conclusions -- Acknowledgements -- References -- Reading the Number of Extra Dimensions in the Spectrum of Hawking Radiation P. Kanti -- 1 Introduction -- 2 Hawking radiation from a Black Hole on a 4-dimensional brane -- Acknowledgments -- References -- Trinification from Superstring Toward MSSM J. E. Kim -- 1 Introduction -- 2 Need for HESSNA -- 3 ZN embedding in E8 -- 4 A mass matrix ansatz for MSSM -- 5 Conclusion -- Acknowledgments -- References -- The Flavour Problem and Family Symmetry S, F. King and I. N. R. Peddie -- 1 Introduction -- 2 U(l) Family symmetry -- 3 SU(3) family symmetry -- 4 Conclusions -- References -- Phenomenological Aspects of Twisted Moduli T. Kobayashi -- 1 Introduction -- 2 Moduli stabilization -- 2.1 Dilaton stabilization -- 2.2 Stabilization of twisted moduli -- 3 D-term inflation -- 4 Conclusion -- Acknowledgments -- References -- 4D GUT (and SM) Model Building from Intersecting D-Branes C. Kokorelis -- 1 Introduction to SM D6/D5-brane model building with only the SM at Low Energy -- 2 Building the SU(4)C x SU(2)L x SU(2)R GUTS With Only The SM At Low Energy.

3 The Construction of Flipped SU(5) (and SU(5)) GUTS with only the SM at Low Energy -- References -- Warped Super-bigravity Z. Lalak and R. Matyszkiewicz -- 1 Introduction -- 2 General setup -- 3 Super-bigravity -- 4 Localization -- 5 Flipped bigravity -- 6 Summary -- Acknowledgments -- References -- Heterotic Yukawa Couplings and Wilson Lines O. Lebedev -- References -- Which is the Best Inflation Model? D. H, Lyth -- 1 Introduction -- 2 Low-scale inflation -- 3 Other models using ordinary field theory -- 4 Models going beyond ordinary field theory -- References -- GUT with Anomalous U(l)A Suggests Heterotic M-Theory? N. Maekawa -- 1 Introduction and Overview of our scenario -- 2 Anomalous U(1)A gauge symmetry -- 3 Why M-theory? -- 4 Why heterotic? -- 4.1 Bi-large neutrino mixings -- 4.2 Non-abelian horizontal symmetry as SUSY flavor problem -- 5 Discussion and summary -- Acknowledgments -- References -- Phenomenological Aspects of Heterotic Orbifold Models at One Loop Y. Mambrini -- 1 Introduction -- 2 Theoretical Framework -- 2.1 The, moduli dominated scenario -- 2.2 The dilaton dominated scenario -- References -- Co-Dimension Two Branes and the Cosmological Constant I. Navarro -- 1 Introduction: co-dimension two branes and conical singularities -- 2 The 6D solution -- 3 Monopole vs. Four Form -- 3.1 Monopole -- 3.2 Four Form Field Strength -- 4 Generalizing to d=4+n dimensions -- References -- Interactions in Intersecting Brane Models A. W. Owen -- 1 Introduction -- 2 The general three point amplitude -- 2.1 Yukawa interactions -- 2.2 Boundary conditions and twist vertices -- 2.3 Classical solutions and global monodromy -- 3 The general four point amplitude -- 3.1 Classical contribution to the four point amplitude -- 3.2 Quantum contribution to the four point amplitude -- 4 Surnrnary and conclusions -- Acknowledgments -- References.

Problems and Cures (Partial) for Holographic Cosmology M. A. Per and A. Segui.