String Phenomenology 2003: Proceedings of the 2nd International Conference Durham, UK, 4 July- 4 August, 2003

CONTENTS......Page 12
Preface......Page 6
IN MEMORY OF IAN KOGAN Misha Shifman......Page 8
2 Intersecting Brane Models and Their Flavour Structure......Page 16
2.1 Yukawa Couplings......Page 17
2.2 Flavour Changing Neutral Currents......Page 18
3 Realistic Quark Masses and Mixing Angles......Page 20
4 Experimental Bounds on the String Scale......Page 21
References......Page 22
1 The strong CP-problem......Page 23
2.1 The model......Page 24
2.3 Rotating away the strong CP problem......Page 26
2.4 Wess-Zumino terms in string theory......Page 27
References......Page 29
Phenomenological Prospects of Noncommutative QED L. Alvarez-Gaume and M. A. Vdzquez-Mozo......Page 31
References......Page 36
1 Introduction......Page 38
2 The Model......Page 39
3 The Vacuum Energy Density......Page 41
References......Page 43
1 Introduction......Page 45
2 The 5D Model......Page 46
3 Hubble Expansion Era......Page 47
4 Non-relativistic Matter and Time Dependence......Page 49
5 Randall-Sundrum (RSI) Model......Page 50
References......Page 52
2 The LC Machine......Page 53
3 Higgs Physics......Page 55
5 Summary......Page 58
References......Page 59
1 Introduction......Page 61
2 The general set-up......Page 62
3 Gauge couplings......Page 63
5 Examples......Page 64
6 Outlook......Page 65
References......Page 66
1 Introduction......Page 69
2 Set up......Page 70
3 Hagedorn regime......Page 72
4 Almost radiation regime......Page 73
Acknowledgments......Page 74
References......Page 75
1 Introduction......Page 76
2 Uncharged solitons and Derrick's theorem......Page 77
3 Charged Solitons......Page 80
References......Page 82
1. Introduction......Page 83
2. String Relics......Page 84
3. Descriptions/Modeling......Page 85
5. Inclusive Multiplicities......Page 87
6. Calibrations......Page 88
References......Page 89
1 The abnormally acute fine tuning problem of the MSSM......Page 91
2 Possible solutions......Page 93
3 Low-scale SUSY breaking......Page 95
4 A concrete model......Page 96
5 Conclusions......Page 98
References......Page 99
1 Review of Optical Unification......Page 101
2 Flat Directions of String Models......Page 103
3 String Model with Optical Unification Potential......Page 104
References......Page 105
1 Introduction......Page 109
2 High-scale unification and mass generation......Page 110
3 Varying extra-dimensional radii......Page 113
References......Page 115
1 Introduction......Page 117
2 Statistics of vacua......Page 119
2.1 Distribution of quiver gauge theories......Page 120
3 Flux vacua......Page 122
3.1 Counting flux vacua......Page 123
4 Conclusions......Page 126
References......Page 127
2 A cosmological solution in string theory......Page 129
3.1 String frame......Page 133
3.2 Einstein frame......Page 134
References......Page 136
Constraining Electroweak Physics J. Erler......Page 138
References......Page 143
1 Veneziano Duality......Page 146
2 PP-wave background duality......Page 148
References......Page 149
1 Introduction......Page 150
2 T-duality......Page 151
3 Realistic string models......Page 152
5 The quantum equivalence postulate......Page 154
6 The role of the self-dual states......Page 155
References......Page 156
1 Introduction......Page 158
2.1 General setup......Page 159
2.2 The spectrum......Page 160
3.1 The Z2 x Z2 symmetric orbifold......Page 162
4 Connection with realistic models......Page 163
6 Conclusions......Page 164
References......Page 165
2 The Bosonic String on a Circle (U(1)R)......Page 167
3 Strings on SU(2)......Page 168
4 Strings on Semisimple Compact Groups......Page 170
5 Conclusions......Page 172
References......Page 173
2 Gauge Couplings......Page 175
3 4 TeV Grand Unification......Page 176
4 Predictivity......Page 178
References......Page 180
1 Introduction......Page 182
2.2 Z2 x Z2 correspondence......Page 184
3 Summary of rules......Page 186
References......Page 188
Lattice Supersymmetry and String Phenomenology J. Giedt......Page 191
Acknowledgements......Page 195
References......Page 197
1. Introduction......Page 198
2.1. Wrapping up the gauge five brane......Page 199
3. The four dimensional action, Kahler potential and complex structure......Page 200
4. Future work......Page 202
References......Page 204
1 Introduction......Page 206
2 3-cycles, RR tadpole cancellation and supersymmetry......Page 207
3 A three generation example with Pati-Salam group......Page 210
References......Page 212
1.2 The Minimal Supersymmetric Standard Model......Page 214
2 The functions......Page 215
4 The Soft -functions......Page 216
5.2 Top Mass Sensitivity......Page 217
7 Semi-Perturbative Unification......Page 218
8 Conclusions......Page 219
References......Page 220
1 Introduction......Page 222
2 Hawking radiation from a Black Hole on a 4-dimensional brane......Page 224
References......Page 228
1 Introduction......Page 230
2 Need for HESSNA......Page 231
4 A mass matrix ansatz for MSSM......Page 233
References......Page 236
2 U(l) Family symmetry......Page 238
3 SU(3) family symmetry......Page 243
References......Page 244
2.1 Dilaton stabilization......Page 246
2.2 Stabilization of twisted moduli......Page 247
3 D-term inflation......Page 249
4 Conclusion......Page 251
References......Page 252
1 Introduction to SM D6/D5-brane model building with only the SM at Low Energy......Page 254
2 Building the SU(4)C x SU(2)L x SU(2)R GUTS With Only The SM At Low Energy......Page 255
3 The Construction of Flipped SU(5) (and SU(5)) GUTS with only the SM at Low Energy......Page 257
References......Page 260
2 General setup......Page 262
3 Super-bigravity......Page 263
4 Localization......Page 267
5 Flipped bigravity......Page 268
References......Page 269
Heterotic Yukawa Couplings and Wilson Lines O. Lebedev......Page 271
References......Page 273
1 Introduction......Page 275
2 Low-scale inflation......Page 276
3 Other models using ordinary field theory......Page 278
4 Models going beyond ordinary field theory......Page 279
References......Page 280
1 Introduction and Overview of our scenario......Page 282
2 Anomalous U(1)A gauge symmetry......Page 283
3 Why M-theory?......Page 285
4.1 Bi-large neutrino mixings......Page 286
4.2 Non-abelian horizontal symmetry as SUSY flavor problem......Page 287
5 Discussion and summary......Page 288
References......Page 289
2 Theoretical Framework......Page 291
2.2 The dilaton dominated scenario......Page 292
References......Page 295
1 Introduction: co-dimension two branes and conical singularities......Page 296
2 The 6D solution......Page 297
3.1 Monopole......Page 299
3.2 Four Form Field Strength......Page 300
4 Generalizing to d=4+n dimensions......Page 301
References......Page 302
2.1 Yukawa interactions......Page 303
2.2 Boundary conditions and twist vertices......Page 304
2.3 Classical solutions and global monodromy......Page 305
3.1 Classical contribution to the four point amplitude......Page 307
3.2 Quantum contribution to the four point amplitude......Page 308
References......Page 309
1 Introduction......Page 311
2.1 The location of the AH in proper coordinates......Page 312
2.2 Violation of the GCEB near the AH......Page 313
3 Restricting At to satisfy the GCEB......Page 315
4 Interpreting the results......Page 316
Acknowledgments......Page 317
References......Page 318
2 Shift-Orientifolds......Page 319
3 Bab and Shifts......Page 320
4 Magnetized Branes and Chiral Models......Page 325
References......Page 327
2 Scherk-Schwarz supersymmetry breaking as spontaneous breaking......Page 330
3 Fixing the Scherk-Schwarz parameter......Page 331
4 Radion effective potential......Page 332
4.2 Localized effects......Page 333
5 Radion stabilization......Page 334
7 Radion phenomenology......Page 335
References......Page 336
A Quantum Analysis on Recombination of D-branes and Its Implications for an Inflation Model T. Sato......Page 338
References......Page 344
2 Inflation as a Probe of Short Distance Physics......Page 346
2.1 Standard Results......Page 347
2.2 Short Distance Modifications......Page 348
2.3 Low Energy Effective Theory......Page 349
2.4 Vacuum......Page 350
2.5 Other Higher Dimensional Operators......Page 351
4 D-Matter......Page 352
Acknowledgments......Page 353
References......Page 354
1 Two–Neutrino Parameters......Page 355
2 Three-Neutrino Parameters......Page 357
3 Future agenda......Page 359
4 Neutrino Theory: Top-Down versus Bottom-Up......Page 360
References......Page 361
Spontaneous CP in a Susy Theory of Flavour O. Vives, G. G. Ross and L. Velasco-Sevilla......Page 364
References......Page 370
2 Optimistic View......Page 372
3 Realistic (Pessimistic?) View......Page 375
Acknowledgments......Page 385
References......Page 387
A kind of prediction from superstring model building......Page 388