Event at Galileo Galilei Institute


New Directions Beyond the Standard Model in Field and String Theory

May 02, 2006 - Jun 30, 2006

The beginning of the LHC experimental program in 2007 makes it urgent to undertake a detailed study of possible extensions of the Standard Model that offer an explanation for the origin of the electroweak scale and its connection with other scales in particle physics. In recent years new ideas on the hierarchy problem have been proposed with a great impact in particle phenomenology and cosmology. On the formal side, the gauge-string duality conjecture has led to new computational methods for studying strongly-coupled gauge theories, and D-brane engineering has provided new realisations of gauge symmetry and supersymmetry breaking. Moreover recent compactifications of string theory have also showed the possibility of stabilising all moduli fields, opening the way to a thorough phenomenological analysis. The purpose of the workshop, which includes a short conference, is to bring together leading string and field theory experts to share ideas and stimulate the interaction between these communities in preparation for the exciting LHC experimental results.

1. Electroweak symmetry breaking.
2. Supersymmetric models and supersymmetry breaking.
3. String vacua and model building.
4. Warped compactifications and holography.
5. Modifications of gravity and cosmological implications.

C. Angelantonj, E. Dudas, T. Gherghetta, A. Pomarol

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Date Speaker Title Type Useful Links
May 03, 2006 - 14:30 Gabriele Honecker U(1)'s in heterotic compactificactions
May 05, 2006 - 14:30 Steve Giddings Exploring the Landscape
May 08, 2006 - 14:30 Alberto Nicolis Constraints on Low-Energy Lagrangians from Causality
May 10, 2006 - 14:30 Alberto Zaffaroni Branes at Singularities and Gauge Theories
May 12, 2006 - 15:30 Gordon Kane Inverse Problem for the LHC, Dark Matter and Inflation: from Data to the Underlying Theory Colloquium Slides
May 15, 2006 - 14:30 Massimo Porrati Goldstone Boson Formalism for Massive and Induced Gravity
May 16, 2006 - 15:00 Zurab Berehziani Parallel Hidden Sector. How Close Might It Be?
May 17, 2006 - 14:30 Emanuel Katz Holography and QCD
May 18, 2006 - 15:00 Marcus Berg Moduli Stabilisation Mechanisms
May 19, 2006 - 15:30 Michael Douglas Recent Developments in the Landscape Colloquium

Recent Developments in the Landscape

String theory is the leading candidate for a theory unifying all the laws of nature including gravity. Over the last few years, evidence has been found that the theory has a vast set of solutions, sometimes called the landscape, each of which makes different predictions for the laws of nature. We discuss recent progress in understanding the landscape and its implications, for testing string theory and on a philosophical level.

May 22, 2006 - 14:30 Martin Schmaltz Conformal Sequestring and Hidden Sector Susy Breaking
May 24, 2006 - 14:30 Tom Taylor Multi-String Scattering
May 25, 2006 - 14:30 Walter Goldberger Black-hole effective field theories
May 26, 2006 - 15:30 Gary Shiu Towards Realistic Stringy Models of Particle Physics and Cosmology Colloquium

Towards Realistic Stringy Models of Particle Physics and Cosmology

String phenomenology is the interplay between string theory -- our leading candidate for a unified theory of particle physics and gravity -- and the observable phenomena of modern particle physics and cosmology. As such, it provides the means by which ideas of string theory can have an impact on current and upcoming experiments. In this talk, I will provide a non-technical survey of the basic ideas of string theory, and I will highlight the role that string phenomenology plays in guiding present and future theoretical developments. I will give examples of how string theory suggest new and unconventional approaches for tackling some presently unsolved puzzles, and conversely, how advances in high energy physics and cosmological measurements provide novel ways of probing string theory experimentally.

May 29, 2006 - 14:30 Massimo Bianchi Anomalous U(1)'s and Generalised Chern-Simons Terms
May 30, 2006 - 14:30 Alok Kumar Moduli Stabilisation Using Open-String Fluxes
May 31, 2006 - 14:30 Witold Skiba Effective Lagrangian Approach to Precision Electroweak Data
Jun 01, 2006 - 14:30 Neal Weiner Late forming dark matter in theories of neutrino dark energy
Jun 14, 2006 - 14:30 Kiwoon Choi Mirage mediation
Jun 15, 2006 - 14:30 Marco Serone Is the Higgs a Wilson line?
Jun 16, 2006 - 15:30 Guenther Dissertori Getting ready for the LHC Colloquium

Getting ready for the LHC

Starting in less than two years from now, particle physics will enter a new regime in terms of energies and luminosities, thanks to the Large Hadron Collider (LHC) at CERN and its experiments. In this talk I will first report on the status of the preparations, both for the machine and the detectors. Then I will describe the start-up scenarios and the very early physics which we expect to study.

Jun 19, 2006 - 14:30 Paolo Creminelli Starting the Universe: Stable Violation of the Null Energy Condition
Jun 21, 2006 - 14:30 Graham Kribs Emerging Holography
Jun 22, 2006 - 15:30 Guglielmo Tino Precision Measurement of Gravity at Micrometer Scale using Ultracold Atoms Colloquium

Precision Measurement of Gravity at Micrometer Scale using Ultracold Atoms

New quantum devices based on ultracold atoms show unprecedented features in terms of sensitivity, accuracy, and reduced size enabling new experiments and tests of fundamental physics. They are used for precision inertial sensors, to measure fundamental constants, and testing relativity. The extremely small size of atomic sensors enables precision measurements of forces at micrometer scale. This is a challenge in physics for studies of surfaces, Casimir effect, and searches for deviations from Newtonian gravity predicted by theories beyond the standard model. Experiments we are performing using atom interferometry to determine the gravitational constant G and test Newtonian gravitational law at micrometric distances will be presented.

Jun 27, 2006 - 15:30 Mikhail Shifman Critical Solitons in Gauge Theories <-> Strings/D Branes/ Dualities Colloquium

Critical Solitons in Gauge Theories <-> Strings/D Branes/ Dualities

String theory which emerged from dual hadronic models in the late 1960s and 70s, elevated to the theory of everything" in the 1980s and early 90s, seemingly entered a return-to-roots" stage. Results and techniques of string/D-brane theory, being applied to field theories have generated numerous predictions of various degree of relevance for gauge theories. If the latter are, in a sense, dual to string/D-brane theory --- as is generally believed to be the case ---the gauge theories must support domain walls (of the D-brane type). In addition, string/D-brane theory teaches us that a fundamental string that starts on a confined quark, can end on such a domain wall. These features, being established, shed light on regularities inherent to QCD. The task of finding solutions to down- to-earth" problems of QCD and other gauge theories by using ideas from string/D-brane theory is currently recognized by many as a critical goal. On the other hand, insights and hints obtained from field theory are likely to fertilize the internal logic of development of string theory. This is a two way street which I will try to review.

Jun 28, 2006 - 14:30 Fabio Zwirner D-terms, Gauge Invariance and Moduli Stabilization in Flux Compactifications
Jun 29, 2006 - 14:30 John March-Russell Ubiquitous Throats