TY  - JOUR
AU  - Pallis, C.
AU  - Shafi, Q.
PY  - 2014
DA  - 2014//
TI  - From hybrid to quadratic inflation with high-scale supersymmetry breaking
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 261
EP  - 266
VL  - 736
PB  - Elsevier Science Bv
AB  - Motivated by the reported discovery of inflationary gravity waves by the BICEP2 experiment, we propose an inflationary scenario in supergravity, based on the standard superpotential used in hybrid inflation. The new model yields a tensor-to-scalar ratio r similar or equal to 0.14 and scalar spectral index n(s) similar or equal to 0.964, corresponding to quadratic (chaotic) inflation. The important new ingredients are the high-scale, (1.6-10) . 10(13) GeV, soft supersymmetry breaking mass for the gauge singlet inflaton field and a shift symmetry imposed on the Kahler potential. The end of inflation is accompanied, as in the earlier hybrid inflation models, by the breaking of a gauge symmetry at (1.2-7.1) . 10(16) GeV, comparable to the grand-unification scale.
SN  - 0370-2693
UR  - http://arxiv.org/abs/arXiv:1405.7645
UR  - https://doi.org/10.1016/j.physletb.2014.07.031
DO  - 10.1016/j.physletb.2014.07.031
LA  - English
N1  - WOS:000341487800036
ID  - Pallis+Shafi2014
ER  -