SUSY: Model-building and Phenomenology

Session

Afternoon session 2

3 Dec 2013, 16:00

Lecture Hall (Kavli IPMU, the University of Tokyo)

16. PLANCK mission, Starobinsky inflation and its realization in old-minimal supergravity

Sergey Ketov (Tokyo Metropolitan U./Kavli IPMU)

03/12/2013, 16:00

It is argued that the recent PLANCK data about the CMB favors some particular inflationary models, such as the Starobinsky inflation and the Higgs inflation. It is, therefore, important to reconsider the embedding of the Starobinsky inflation into supergravity and string theory, towards expanding the current phenomenological status of the Starobinsky inflation to a fundamental theory of...

15. Lower bound on the gravitino mass in R-symmetry breaking new inflation model

Keisuke Harigaya (Kavli IPMU)

03/12/2013, 16:25

In supersymmetric theories, the R symmetry plays a unique role in suppressing a constant term in the superpotential. In single chiral field models of spontaneous breaking of a discrete R symmetry, an R-breaking field is a good candidate for an inflaton in new inflation models. We show that the model predicts a lower limit on the gravitino mass, 100 TeV. This lower limit is consistent with the...

17. Probing origins of neutrino masses and baryon asymmetry

Takehiko Asaka (Niigata U.)

03/12/2013, 16:50

We consider the Standard Model extended by two quasi-degenerate right-handed neutrinos. In particular, we consider the case when they are lighter than charged kaon. This simple framework can account for the neutrino oscillations and the baryon asymmetry of the universe at the same time. In this talk we shall summarize the possible constraints on such right-handed neutrinos from direct...

18. A first evidence of the CMSSM is appearing soon

Kenichi Sugai (Saitama U.)

03/12/2013, 17:15

We explore the coannihilation region of the constrained minimal supersymmetric standard model (CMSSM) being consistent with current experimental/observational results. The requirements from the experimental/observational results are the 125GeV Higgs mass and the relic abundances of both the dark matter and light elements, especially the lithium-7. We put these requirements on the calculated...