Inter-University Attraction Pole meeting

Session

Afternoon session: contributed talks

AFTE

22 Jan 2009, 14:00

auditoire Montesquieu: MONT01 (Louvain University)

8. Relating dark matter and neutrino masses in supergravity

Dr Chiara Arina (ULB-PhysTh)

22/01/2009, 14:00

We study the supergravity phenomenology in the case of an alternative seesaw mechanism for generating neutrino masses. Changes in the neutrino sector lead to a modification of the supersymmetric particle spectrum and the sneutrino arises naturally as the lightest supersymmetric particle. The obtained sneutrino has a relic density within the WMAP range and is compatible with present...

9. Successful Leptogenesis in SO(10) Unification with a Left-Right Symmetric Seesaw Mechanism

Dr François-xavier Josse-Michaux (ULB-PhysTh)

22/01/2009, 14:20

We study thermal leptogenesis in a broad class of supersymmetric SO(10) models with a left-right symmetric seesaw mechanism. We show that including lepton flavour effects together with the second-lightest right-handed neutrino, leptogenesis can work for specific spectra reconstructed from the low-energy data. Moreover, we show that corrections to the relation Me=Md are crucial...

10. Applications of the gauge/gravity duality

Dr Marco Caldarelli (KUL)

22/01/2009, 14:40

The old suggestive observation that black holes often resemble lumps of fluid has recently been taken beyond the level of an analogy to a precise duality, that relates holographically a sector of anti-de Sitter gravity to fluid dynamics. We will review this correspondence and some of its applications, with an emphasis on the study of instabilities of black strings and fluid tubes.

11. ttbar production process as a background to standard ModelHiggs decay to WW*

Dr Majid Hashemi (UA)

22/01/2009, 15:20

I will briefly describe, first, the current status of the H->WW* analysis in CMS and discuss about its main news and messages. Concentration will be more on our group contribution in this analysis and the results obtained so far. In the second (and main) part of the talk, I will focus on the ttbar background as one of the main background processes of H->WW events. Therefore the approach...

12. Central Exclusive Dijet Production

Ms Alice Dechambre (ULg)

22/01/2009, 15:40

In view of the recent diffractive dijet data from CDF RunII, we critically re-evaluate the standard approach to the production of high-mass systems in proton/antiproton collision. A central exclusive dijet production is characterized by a large separation in rapidity of the final products and by few hadronic remnants. This mode of production is interesting because, from the measurement...