PLANCK 2011 - From the Planck Scale to the ElectroWeak Scale

Session

P2 - EXTRA DIMENSIONS

31 May 2011, 14:00

Main Auditorium (IST Congress Centre)

Conveners

P2 - EXTRA DIMENSIONS

• Michael Ratz (Technische Universitaet Muenchen)

13. Ultra visible warped models at hadron colliders

cedric delaunay (Weizmann Institute of Science)

31/05/2011, 14:00

We present a class of warped models where the SM flavor hierarchies are determined by UV physics. These Flavor Triviality (FT) models display a sweet-spot of parameters where a KK-gluon mass as low as O(2)TeV is consistent with EWPTs. In contrast with the so-called anarchic warped models, FT models show no tension with either FCNCs or EDMs, while naturalness is potentially improved....

78. The bottom and top quarks in warped models : LHC predictions from LEP/Tevatron anomalies

Dr Grégory Moreau (LPT/University Paris 11, France)

31/05/2011, 14:15

Since a decade, there have been extensive developments about an alternative to supersymmetry: the scenarios with warped extra dimensions. Those constitute a new paradigm in the sense that they are dual, through the AdS/CFT correspondence, to composite Higgs models. These scenarios predict naturally strong deviations from the Standard Model mainly in the bottom and top quark sector. In that...

115. Consistent MUED for the LHC

Chloé Papineau

31/05/2011, 14:30

We revisit the Minimal Universal Extra Dimensions (MUED) model by implementing consistently electroweak symmetry breaking and loop-corrections in five dimensions. I will present the detailed spectrum as well as some production chanels at the LHC

37. A 5D Model of Baryons and Mesons

Mr Oriol Domenech (IFAE, Barcelona)

31/05/2011, 14:45

Using the prescriptions of the AdS/CFT correpondence it is possible to build Extra Dimensional models that describe low energy hadrons. I will review a simple 5D model of QCD in which mesons are represented by bulk fields and baryons arise as solitons, in analogy to the original Skyrme model. Contrary to 4D Skyrmions, however, baryon physics is calculable in this effective...

24. Warped de Sitter compactifications

Dr Kunihito Uzawa (Kindai University)

31/05/2011, 15:00

We show that the warped de Sitter compactification is possible under certain conditions in D-dimensional gravitational theory coupled to a dilaton, a form field strength, and a cosmological constant. We find that the solutions of field equations give de Sitter spacetime with the warped structure. We also discuss the dynamics of moduli in the lower-dimensional effective theories and show that...

30. Seesaw in the bulk

Dr Atsushi Watanabe (Niigata Univ.)

31/05/2011, 15:15

A five-dimensional seesaw framework is analyzed with the lepton-number-violating propagator of bulk right-handed neutrinos. That can bypass summing up the effects of heavy Majorana particles whose masses and wavefunctions are not exactly known. The propagator method makes it easier to evaluate the seesaw-induced neutrino mass for various boundary conditions of bulk neutrinos and in a general...

82. Neutrino Mass from a Mini-Seesaw

Kristian McDonald (Max Planck Institute (Heidelberg))

31/05/2011, 15:30

The Mini-Seesaw mechanism combines naturally suppressed Dirac and (sterile) Majorana mass scales together in a low-scale seesaw to achieve light Standard Model neutrino masses. A key feature of this approach is the existence of a tower of light sterile neutrinos, all of which can mix with the Standard Model. We will detail this mechanism and discuss the prospects for observing the light sterile modes.