Precision calculations for SUSY searches at the LHC

Friday 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

Unification of expansions

Wednesday 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.

Naturally non-standard Higgs boson decays

Friday 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

Friday April 30, 14:30 - IFAE seminar room

Speaker: 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

APRIL 2011 - First W boson candidate event in ATLAS

First W boson candidate event in ATLAS First candidate for an event with a W boson decaying to muon + neutrino seen in 7 TeV collision data.

APRIL 2010 - First source discovered with MAGIC II

The MAGIC Collaboration reports the discovery of VHE gamma-ray emission from the new source MAGIC J0317+413. The source was in the field of view of the MAGIC telescopes between October 2009 and February 2010.

Phenomenology of Neutrino Masses


Speaker: 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.

Meson Mixing and Decay in the MSSM at two loops

Speaker: Javier Virto (Univ. 'La Sapienza' & INFN, Rome)
Friday, March 5th 2010, 14.30h - IFAE Seminar Room



G-2 of the Muon: Touchstone of the Standard Model, Keyhole to New Physics

Speaker: Thomas Teubner - Liverpool University

Wednesday, March 3rd, 14.30h  - IFAE seminar room

 

Tsukuba, February 24, 2010. Physicists from the Japanese-led multinational T2K collaboration announced today that they had made the first detection of a neutrino which had travelled all the way under Japan from their neutrino beamline at the J-PARC facility in Tokai village (about an hour north of Tokyo by train) to the gigantic Super- Kamiokande underground detector near the west coast of Japan, 295 km (185 miles) away from Tokai.

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