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1909 - 1920 of 3147 Results

Light sleptons, Higgs phenomenology and the vacuum

Stefania Gori University of California, Santa Cruz
December 07, 2012

PIRSA:12120018
High Energy Physics
Unitarity, black hole microstates and how Alices fuzzes but may not even know it

Andrea Puhm University of Amsterdam
December 06, 2012

PIRSA:12120029
High Energy Physics
The Spectrum of Strings on Warped AdS3

Wei Song Harvard University
December 05, 2012

PIRSA:12120027
High Energy Physics
Moduli Stabilization and Holographic RG
December 04, 2012

PIRSA:12120002
High Energy Physics
New electroweak states in plain sight

Patrick Meade Stony Brook University - C. N. Yang Institute for Theoretical Physics
December 04, 2012

PIRSA:12120017
High Energy Physics
Quantum Field Theory 2 - Lecture 15

Francois David CEA Saclay
November 30, 2012

PIRSA:12110018
High Energy Physics
Quantum Field Theory 2 - Lecture 14

Francois David CEA Saclay
November 29, 2012

PIRSA:12110017
High Energy Physics
Chern-Simons Contact Terms

Thomas Dumitrescu University of California, Los Angeles
November 28, 2012

PIRSA:12110094
High Energy Physics
Quantum Field Theory 2 - Lecture 13

Francois David CEA Saclay
November 28, 2012

PIRSA:12110016
High Energy Physics
Bootstrapping CFTs with the Extremal Functional Method

Miguel Paulos École Normale Supérieure - PSL
November 27, 2012

PIRSA:12110049
High Energy Physics
Quantum Field Theory 2 - Lecture 12

Francois David CEA Saclay
November 27, 2012

PIRSA:12110015
High Energy Physics
Quantum Field Theory 2 - Lecture 11

Francois David CEA Saclay
November 26, 2012

PIRSA:12110014
High Energy Physics

Light sleptons, Higgs phenomenology and the vacuum

Stefania Gori University of California, Santa Cruz
December 07, 2012

PIRSA:12120018
High Energy Physics
We analyze the implications for Susy theories of a Higgs to di-photon rate enhanced, if compared to the Standard Model prediction. We show how models predicting a sizable enhancement have generically an electroweak vacuum that is not absolutely stable. In particular we discuss the only viable scenario that can predict sizable new physics effects in the di-photon rate in the framework of the MSSM: a scenario with light and heavily mixed staus. We conclude with the phenomenology of this model and with the prospects of probing it at the LHC, through the direct production of light staus.
Unitarity, black hole microstates and how Alices fuzzes but may not even know it

Andrea Puhm University of Amsterdam
December 06, 2012

PIRSA:12120029
High Energy Physics
The information paradox and the infall problem have been long-standing puzzles in the understanding of black holes. The idea of free infall is in considerable tension with unitarity of the evaporation process and recent developements have made this tension sharp. In the first part of my talk I will address the information question and argue that unitarty requires every quantum of radiation leaving the black hole to carry information about the initial state. Unitary evaporation is thus inconsistent with an information-free horizon at every step of the evaporation process and this extends the recent firewall result. This immediately raises the question of What is the required horizon-scale structure? I will show an explicit construction of near-extremal black hole microstates which put flesh and branes on the fuzzball proposal and may realize firewalls in string theory. In the second part I will address the question of What happens to an observer falling into a fuzzball? I will argue that the answer is dependent on the energy scale of the infalling observer.
The Spectrum of Strings on Warped AdS3

Wei Song Harvard University
December 05, 2012

PIRSA:12120027
High Energy Physics
Warped AdS3 has isometry SL(2,R) x U(1). It is closed related to Kerr/CFT, non local dipole theories and AdS/CMT. In this talk I will derive the spectrum of string theory on Warped AdS3. This is possible because the worldsheet theory can be mapped to the worldsheet on AdS3 by a nonlocal field redefinition.
Moduli Stabilization and Holographic RG
December 04, 2012

PIRSA:12120002
High Energy Physics
In this talk, I will relate moduli stabilization in AdS or de Sitter space to basic properties of the Wilsonian action in the holographic dual theory living on dS (of one lower dimension): the single-trace terms in the action have vanishing beta functions, and higher-trace couplings are determined purely from lower-trace ones (a property we refer to as the iterative structure of RG). In the dS case, this encodes the maximal symmetry of the bulk spacetime in a quantity which is accessible within a single observer's patch.
New electroweak states in plain sight

Patrick Meade Stony Brook University - C. N. Yang Institute for Theoretical Physics
December 04, 2012

PIRSA:12120017
High Energy Physics
The LHC has made remarkable progress in exploring the SM at new energies and demonstrating remarkable agreement with theoretical predictions. In this talk I will discuss one area where the SM does not fit as well as expected, and what could be hints of new physics showing up in the electroweak sector.
Quantum Field Theory 2 - Lecture 15

Francois David CEA Saclay
November 30, 2012

PIRSA:12110018
High Energy Physics
Quantum Field Theory 2 - Lecture 14

Francois David CEA Saclay
November 29, 2012

PIRSA:12110017
High Energy Physics
Chern-Simons Contact Terms

Thomas Dumitrescu University of California, Los Angeles
November 28, 2012

PIRSA:12110094
High Energy Physics
Chern-Simons contact terms constitute new observables in three-dimensional quantum field theory. In N=2 supersymmetric theories with an R-symmetry, they lead to a superconformal anomaly. This understanding clarifies several puzzles surrounding the S3 partition function of these theories. In particular, it leads to a proof of the F-maximization principle. Chern-Simons contact terms can be computed exactly using localization and lead to new tests of proposed dualities.
Quantum Field Theory 2 - Lecture 13

Francois David CEA Saclay
November 28, 2012

PIRSA:12110016
High Energy Physics
Bootstrapping CFTs with the Extremal Functional Method

Miguel Paulos École Normale Supérieure - PSL
November 27, 2012

PIRSA:12110049
High Energy Physics
The existence of a positive linear functional acting on the space of (differences between) conformal blocks has been shown to rule out regions in the parameter space of conformal field theories (CFTs). We argue that at the boundary of the allowed region the extremal functional contains, in principle, enough information to determine the dimensions and OPE coefficients of an infinite number of operators appearing in the correlator under analysis. Based on this idea we develop the Extremal Functional Method (EFM), a numerical procedure for deriving the spectrum and OPE coefficients of CFTs lying on the boundary (of solution space). We test the EFM by using it to rederive the low lying spectrum and OPE coefficients of the 2d Ising model based solely on the dimension of a single scalar quasi-primary -- no Virasoro algebra required. Our work serves as a benchmark for applications to more interesting, less known CFTs in the near future, such as the 3d Ising model.
Quantum Field Theory 2 - Lecture 12

Francois David CEA Saclay
November 27, 2012

PIRSA:12110015
High Energy Physics
Quantum Field Theory 2 - Lecture 11

Francois David CEA Saclay
November 26, 2012

PIRSA:12110014
High Energy Physics

Title	Date	Collection	Type	Info
Light sleptons, Higgs phenomenology and the vacuum	2012‑12‑07	Particle Physics	Scientific Series	View details
Unitarity, black hole microstates and how Alices fuzzes but may not even know it	2012‑12‑06	Quantum Fields and Strings	Scientific Series	View details
The Spectrum of Strings on Warped AdS3	2012‑12‑05	Quantum Fields and Strings	Scientific Series	View details
Moduli Stabilization and Holographic RG	2012‑12‑04	Quantum Fields and Strings	Scientific Series	View details
New electroweak states in plain sight	2012‑12‑04	Particle Physics	Scientific Series	View details
Quantum Field Theory 2 - Lecture 15	2012‑11‑30	12/13 PSI - Quantum Field Theory 2	Course	View details
Quantum Field Theory 2 - Lecture 14	2012‑11‑29	12/13 PSI - Quantum Field Theory 2	Course	View details
Chern-Simons Contact Terms	2012‑11‑28	Quantum Fields and Strings	Scientific Series	View details
Quantum Field Theory 2 - Lecture 13	2012‑11‑28	12/13 PSI - Quantum Field Theory 2	Course	View details
Bootstrapping CFTs with the Extremal Functional Method	2012‑11‑27	Quantum Fields and Strings	Scientific Series	View details
Quantum Field Theory 2 - Lecture 12	2012‑11‑27	12/13 PSI - Quantum Field Theory 2	Course	View details
Quantum Field Theory 2 - Lecture 11	2012‑11‑26	12/13 PSI - Quantum Field Theory 2	Course	View details

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Format results

Light sleptons, Higgs phenomenology and the vacuum

Unitarity, black hole microstates and how Alices fuzzes but may not even know it

The Spectrum of Strings on Warped AdS3

Moduli Stabilization and Holographic RG

New electroweak states in plain sight

Quantum Field Theory 2 - Lecture 15

Quantum Field Theory 2 - Lecture 14

Chern-Simons Contact Terms

Quantum Field Theory 2 - Lecture 13

Bootstrapping CFTs with the Extremal Functional Method

Quantum Field Theory 2 - Lecture 12

Quantum Field Theory 2 - Lecture 11

Light sleptons, Higgs phenomenology and the vacuum

Unitarity, black hole microstates and how Alices fuzzes but may not even know it

The Spectrum of Strings on Warped AdS3

Moduli Stabilization and Holographic RG

New electroweak states in plain sight

Quantum Field Theory 2 - Lecture 15

Quantum Field Theory 2 - Lecture 14

Chern-Simons Contact Terms

Quantum Field Theory 2 - Lecture 13

Bootstrapping CFTs with the Extremal Functional Method

Quantum Field Theory 2 - Lecture 12

Quantum Field Theory 2 - Lecture 11