Events
14/06/2010 - Colloquium - Physics prospects of CTAPhysics prospects of CTASpeaker: 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 |
07/06/2010 - Seminar - Non-gaussianity and large-scale structure surveysNon-gaussianity and large-scale structure surveysMonday, June 7th, 14:30 - Seminar Room Speaker: Licia Verde (ICC, Universitat de Barcelona) Abstract: It has recently been shown that a popular type of primordial non-gaussianity affects drastically the clustering of extrema such as massive dark matter halos. This effect goes under the name of non-gaussian halo bias. Since galaxies, especially at high redshfits, are expected to trace such halos, |
28/05/2010 - Seminar - Unitarity applied to hidden sector processesUnitarity applied to hidden sector processesFriday May 28th, 14:30 - Seminar room Speaker: Antonio Delgado (Notre Dame, Indiana) Abstract: There has been some attention to the possibility that there exist hidden sectors coupled to the standard model with couplings suppressed by an energy scale such that it has not been possible to access them yet but the LHC will have |
21/05/2010 - Seminar - Reconciling leptogenesis with observable --> e gamma ratesReconciling leptogenesis with observable mu --> e gamma ratesFriday May 21st, 14:30 - Seminar room Speaker: Thomas Hambye (Universite Libre de Bruxelle) Abstract: Seesaw models which approximately conserve lepton number are known to allow for large Yukawa couplings and a low seesaw scale in agreement with neutrino mass constraints, and hence to lead to large lepton flavour violating rates that can be |
14/05/2010 - Seminar - Precision calculations for SUSY searches at the LHCPrecision calculations for SUSY searches at the LHCFriday May 14th, 14:30 - Seminar Room Speaker: Michael Kraemer (Aachen University & IFAE) Abstract:The search for supersymmetry is among the most exciting endeavors at the Tevatron and at the LHC. I will discuss precision calculations for the production of squarks and gluinos and how they can be used to set limits on the masses |
12/05/2010 - Seminar - Unification of expansionsUnification of expansionsWednesday May 12th, 14:00 - Multifunctional room . Speaker: David Greynat (will talk about his very last work) Abstract: We show how it is possible to unify the resummation of threshold, low - and high- energy expansions in a controlled and systematic way. We will exemplify it for heavy-quark correlators. |
07/05/2010 - Seminar - Naturally non-standard Higgs boson decaysNaturally non-standard Higgs boson decaysFriday May 7th, 14:30 - Seminar room Speaker: Andreas Weiler (CERN, Geneva) Abstract:We are certain that the electro-weak symmetry is a gauge symmetry and that the longitudinal components of the heavy vector bosons are the Goldstone bosons of a spontaneous breaking. What we do not know is the mechanism behind the breaking. If an elementary scalar field like the Higgs in the Standard Model is responsible we are left sensitive to heavy scales in nature like the unification scale or the Planck scale. Since we do not believe |
30/04/2010 - Seminar - What (optimal) definitions for jets at the LHC?Friday April 30, 14:30 - IFAE seminar roomSpeaker: Gregory Soyez (CERN, Geneva) Jets, naively seen as collimated bunches of particles, are very useful tools at hadronic colliders. The major part of the talk will tackle a basic question: how can we define the jets from the particles in an event? In that perspective, I will review the definitions used over the last decades and show that |
12/04/2010 - Colloquium - Phenomenology of Neutrino MassesPhenomenology of Neutrino MassesSpeaker: Federico Sanchez (IFAE) Mon 12 April, 12:00 - IFAE seminar room Neutrinos were thought to be massless for many decades. The discovery of neutrino oscillations at the end of the nineties proved the contrary. Since then, many experiments have been trying to understand these phenomena. |
19/03/2010 - Seminar - Particle Physics with Neutrino Telescopes by Carlos de los HerosParticle Physics with Neutrino TelescopesFriday March 19th, 12:00h, IFAE seminar room Speaker: Carlos de los Heros (Uppsala University) Second-generation neutrino telescopes are being built to explore the high energy neutrino sky, searching for cosmological point sources of neutrinos.
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