TY  - JOUR
AU  - Buchmuller, Wilfried
AU  - Covi, Laura
AU  - Delepine, David
TI  - Inflation and supersymmetry breaking
JO  - Physics letters / B
VL  - 491
IS  - 1-2
SN  - 0370-2693
CY  - Amsterdam
PB  - North-Holland Publ.
M1  - PUBDB-2017-01634
M1  - hep-ph/0006168
M1  - DESY-00-082
SP  - 183 - 189
PY  - 2000
AB  - We study the connection between inflation and supersymmetry breaking in the context of an O'Raifeartaigh model which can account for both hybrid inflation and a true vacuum where supersymmetry is spontaneously broken. For a weakly coupled inflaton field, the dynamics during the inflationary phase can be determined by the supersymmetry breaking scale M S ∼10 10  GeV, even if H I ⪢ m 3/2 . The spectrum of density fluctuations is then almost scale invariant, with a spectral index n−1= O (M G 2 /M P 2 ) . The mass parameter M G of the O'Raifeartaigh model is determined by the COBE normalization for the cosmic microwave background to be the grand unification scale, M G ∼10 16  GeV.
KW  - inflation: hybrid (INSPIRE)
KW  - supersymmetry: symmetry breaking (INSPIRE)
KW  - inflaton: weak coupling (INSPIRE)
KW  - density: fluctuation (INSPIRE)
KW  - O'Raifeartaigh model (INSPIRE)
KW  - supergravity (INSPIRE)
KW  - cosmic background radiation (INSPIRE)
KW  - moduli (INSPIRE)
KW  - coupling: Yukawa (INSPIRE)
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000090035400026
DO  - DOI:10.1016/S0370-2693(00)01005-4
UR  - https://bib-pubdb1.desy.de/record/320267
ER  -