Rencontre des Particules 2008

Session

Au-delà du Modèle Standard

23 Jan 2008, 14:30

Auditorium LAPP/LAPTH (LAPTH Annecy-le-Vieux)

Conveners

Au-delà du Modèle Standard

• Sabine Kraml (LPSC Grenoble)
• Fawzi Boudjema (LAPTH Annecy-le-Vieux)

6. Revue au-delà du Modèle Standard

Christophe Grojean (CERN)

23/01/2008, 14:30

7. Heterotic String Phenomenology

Michele Trapletti (LPT Orsay)

23/01/2008, 15:15

We resume the state of the art of heterotic string model building, focussing on the realistic models recently obtained by compactifications of the extra dimensions on orbifolds, i.e. on singular internal spaces. After this, we show how to resolve the orbifold singularities and re-obtain the models as smooth compactifications of the heterotic string. In this way, we provide a description of...

8. Moduli stabilisation and new low-energy spectra

Alberto Romagnoni (LPT Orsay)

23/01/2008, 15:35

I will talk about a KKLT-like model in whixh the uplift to a Minkowski vacuum is provided by a Fayet-Iliopoulos sector. The modulus contribution to supersymmetry breaking is larger than in the models already present in the literature and a new mixed gauge-gravity mediation appears in some explicit examples. This provides an original phenomenology in principle testable at LHC.

9. Benchmarks for the NMSSM

Ana Teixeira (LPT Orsay)

23/01/2008, 16:30

We present constrained and semi-constrained versions of the next-to-minimal supersymmetric extension of the Standard Model (NMSSM). The addition of a singlet Higgs superfield to the two doublet superfields that are present in the MSSM leads to a richer Higgs and neutralino spectrum, and allows for many interesting phenomena that are are not present in the MSSM. In particular, light Higgs...

12. Calculating the relic density at one-loop in susy

Nans Baro (LAPTH Annecy-le-Vieux)

23/01/2008, 16:50

34. Incertitudes théoriques de la propagation des positrons cosmiques

Timur Delahaye (LAPTH Annecy-le-Vieux)

23/01/2008, 17:10

Nous avons étudié le problème de la détection indirecte de matière noire par le biais des positrons. Grâce à de nouvelles méthodes de résolution des équations décrivant leur propagation, nous avons été en mesure d'évaluer l'incertitude qui affecte le flux des positrons cosmiques primaires et qui est dûe à notre méconnaissance des paramètres de propagation. Les flux que nous avons calculés...

11. SUSY QCD corrections to squark loops in Higgs boson production via gluon

Margarete Muehlleitner (LAPTH Annecy-le-Vieux)

23/01/2008, 17:30

At existing and future hadron colliders Higgs boson production via gluon gluon fusion is one of the dominant Higgs production processes. The (large) QCD corrections have been calculated at NLO and recently at NNLO (in the heavy top quark limit). So far the NLO SUSY-QCD corrections are only known in the heavy squark limit which is reliable for large squark masses. We have calculated the...

13. Charged Higgs at LHC and in B decays

Alan Cornell (IPN Lyon)

23/01/2008, 17:50

14. Bottom-up reconstruction scenarios for (un)constrained MSSM parameters at the LHC

Jean-Loïc Kneur (LPTA Montpellier)

23/01/2008, 18:10