21-26 July 2014
Renold Building
Europe/London timezone
Large-Field Inflation and Supersymmetry Breaking
Presented by Mr. Lucien HEURTIER
on
22 Jul 2014
from
15:10
to
15:30
Type: Quark Flavour Violation: SM and Beyond
Session:
Models of SUSY
Track: Quark Flavour Violation: SM and Beyond
Content
Large-field inflation is an interesting and predictive scenario. Its
non-trivial embedding in supergravity was intensively studied in the
recent literature, whereas its interplay with supersymmetry breaking has
been less thoroughly investigated. We consider the minimal viable model
of chaotic inflation in supergravity containing a stabilizer field, and
add a Polonyi field. Furthermore, we study two possible extensions of
the minimal setup. We show that there are various constraints: first of
all, it is very hard to couple an O'Raifeartaigh sector with the
inflaton sector, the simplest viable option being to couple them only
through gravity. Second, even in the simplest model the gravitino mass
is bounded from above parametrically by the inflaton mass. Therefore,
high-scale supersymmetry breaking is hard to implement in a chaotic
inflation setup. As a separate comment we analyze the simplest chaotic
inflation construction without a stabilizer field, together with a
supersymmetrically stabilized K?hler modulus. Without a modulus, the
potential of such a model is unbounded from below. We show that a heavy
modulus cannot solve this problem.
Place
Location: Renold
Room: D2
Primary authors
- Mr. Lucien HEURTIER CPHT, école Polytechnique, Palaiseau, FRANCE
- Dr. Mark GOODSELL LPTHE, UPMC
- Mr. Pantelis TZIVELOGLOU IIHE - VUB
- Prof. Emilian DUDAS CPHT