This book contains a remarkable overview of the current trends in string phenomenology, through the contributions of an international team of researchers who present their latest results. Dedicated to the memory of the late Professor Ian Kogan, this volume will fill a gap in the literature on a comprehensive overview of the subject.The proceedings have been selected for coverage in:• Index to Scientific & Technical Proceedings® (ISTP® / ISI Proceedings)• Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)• CC Proceedings — Engineering & Physical Sciences

Recent experimental results with direct bearing on theories of cosmological dark matter/energy, as well as continuing work on neutrino masses and mixing, have invigorated both particle physics and cosmology, and should continue to do so well into the 21st century, thereby launching a beautiful new epoch for these fields. The expert contributions from this conference took stock of these developments. This volume contains papers by over 40 physicists that summarize and interpret the newest findings, and suggest future avenues to be explored. A number of new theoretical ideas are also presented, dealing with progress in understanding the dynamics and symmetries of strings and branes, renormalization in quantum field theory, possible Lorentz violation effects, and related problems. Ongoing and next generation gravitational and neutrino experiments are described, and the issues of unification are dealt with in the context of, and beyond, the standard model. Together, the contributions provide a useful blend of experimental and theoretical physics from many prominent physicists, including three Nobel Laureates. The volume also contains information of an historical nature, concerning the contributions to physics by Paul Frampton, on the occasion of his 60th year, and summarizing the career of Behram Kursunoglu (1922-2003).

In this thesis, the author describes the development of a software framework to systematically construct a particular class of weakly coupled free fermionic heterotic string models, dubbed gauge models. In their purest form, these models are maximally supersymmetric (N = 4), and thus only contain superpartners in their matter sector. This feature makes their systematic construction particularly efficient, and they are thus useful in their simplicity. The thesis first provides a brisk introduction to heterotic strings and the spin-structure construction of free fermionic models. Three systematic surveys are then presented, and it is conjectured that these surveys are exhaustive modulo redundancies. Finally, the author presents a collection of metaheuristic algorithms for searching the landscape for models with a user-specified spectrum of phenomenological properties, e.g. gauge group and number of spacetime supersymmetries. Such algorithms provide the groundwork for extended generic free fermionic surveys.

This book contains the Proceedings of the Fourth International Conference on Particle Physics Beyond the Standard Model - BEYOND THE DESERT 2003. Emphasis at BEYOND03 was put on supergravity, which had its twentieth birthday that year, on neutrino physics and dark matter search, and on gravitation and cosmology, and some other very important fields. The book resents a timely and valuable overview of the status and future potential and trends in theoretical and experimental particle physics, in the complementary sectors of accelerator, non-accelerator and space physics.

This book contains a remarkable overview of the current trends in string phenomenology, through the contributions of an international team of researchers who present their latest results. Dedicated to the memory of the late Professor Ian Kogan, this volume will fill a gap in the literature on a comprehensive overview of the subject.The proceedings have been selected for coverage in: ? Index to Scientific & Technical Proceedings? (ISTP? / ISI Proceedings)? Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)? CC Proceedings ? Engineering & Physical Sciences

This is a collection of review articles and more specialized papers on the main issues of early universe physics. Both theoretical and experimental fields of research are dealt with.