THESIS DEFENSE - TeV gamma-ray observations of nearby Active Galactic Nuclei with the MAGIC telescope: exploring the high energy region of the multi-wavelength picture

Friday July 23rd 2010, 12 pm - Seminar room

Thesis Defender: Diego Tescaro

Partially Supersymmetric Composite Higgs Models

Friday July 16th. 14:30hs - Seminar room

Speaker: Michele Redi (CERN, Geneva)

Abstract:

I will discuss the idea of the Higgs as a pseudo-Goldstone boson within the framework of partial supersymmetry in Randall-Sundrum scenarios and their CFT duals. The Higgs and third generation of the MSSM are composites arising from a strongly coupled supersymmetric CFT with global symmetry SO(5)

Partially Supersymmetric Composite Higgs Models

Friday July 16th, 14:30hs - Seminar room

Speaker: Michele Redi ( CERN Geneva)

Abstract:

I will discuss the idea of the Higgs as a pseudo-Goldstone boson within the framework of partial supersymmetry in Randall-Sundrum scenarios and their CFT duals. The Higgs and third generation of the MSSM are composites arising from a strongly coupled supersymmetric CFT with global symmetry SO(5)

Beautiful Mirrors at the LHC

Friday July 9th, 14:30h - Seminar Room

Speaker: Roberto Vega-Morales (Northwestern University)

Abstract: In this talk I will explore the "Beautiful Mirrors" model, which aims to explain the measured value of A^b_FB, discrepant at the 2.9sigma level. This scenario introduces vector-like quarks which mix with the bottom, subtly affecting its coupling to the Z. The spectrum of the new particles consists

Cosmic-ray signatures of dark matter decay

Monday July 5th, 12:00 hs - Seminar room

Speaker: Alejandro Ibarra  (Technische Universität München)

Variations on Minimal Flavour Violation

Friday July 2nd, 2010, 14.30 hs - Seminar room

Speaker: Thorsten Feldmann (Technische Universitat Munchen)

Abstract: In this talk I will present some recent applications and extensions of the concept of "minimal flavour violation" (MFV), which is frequently used to constrain the flavour sector of new physics models. I will shortly explain how to define MFV in the effective-theory context, making use of Yukawa

Physics prospects of CTA

Speaker:  Diego Torres (ICREA/IEEE)

Abstract: The high energy gamma ray community is joining efforts to build a new array of Cherenkov telescopes. It foresees a factor of 10 improvement in sensitivity and an extension of the accessible energy range from a few tens of GeV up to 100 TeV. The aim of this this lecture is to present a perspective on the physics and astrophysics possibilities of the Cerenkov Telescope Array, which is currently in Design Study

Rescattering effects in eta -> 3pi decays

Speaker: Bastian Kubis (HISKP-Theory, Bonn University)

Abstract:The isospin-breaking decay eta -> 3pi is an ideal tool to extract information on the light quark mass ratios from experiment. For a precise determination, however, a detailed description of the Dalitz plot distribution is necessary. In that respect, in particular the

(small) slope parameter of the neutral decay channel causes some concern, since the one- loop prediction from chiral perturbation theory misses the experimental value substantially. I will describe a dedicated framework to analyse final-state interactions beyond one loop, including isospin-breaking corrections, and present our current understanding of the eta -> 3pi Dalitz plot parameters thus obtained.

A New Clue to Explain Existence


speaker: Alexander Lenz (Regensburg University)

Abstract: Recently headlines like "A New Clue to Explain Existence" went around the world to describe the result of the D0 collaboration at TeVatron presented on Friday 14th May. D0 measured semileptonic CP-Asymmetries in the two neutral B-meson systems and found a 3.2 sigma difference compared to the standard model (SM) expectation. We will review several different measurements that hint at deviations in the $B_s$ mixing system. In particular we will discuss the robustness of the corresponding SM predictions. Moreover we will also present some possible extensions of the SM that would give rise to large CP-violating effects in the $B_s$ system.

A Warped Model of Dark Matter

Friday June 25th, 14:30 - Seminar room

Speaker: Benedict von Harling (University of Melbourne)

 

Abstract:
We present a model of dark matter in a warped extra dimension in which various dark sector mass scales are naturally generated without supersymmetry. The dark matter, whose mass is in the TeV range, is charged under a dark abelian gauge group. The corresponding dark photon obtains a mass in the

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