Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-09-08
Physics
High Energy Physics
High Energy Physics - Phenomenology
4pages, 4 eps figures, talk at ICHEP2004, Aug. 16-22, 2004, Beijing
Scientific paper
The theory of inflation will be investigated as well as supersymmetry breaking in the context of supergravity, incorporating the target-space duality and the non-perturbative gaugino condensation in the hidden sector. The inflation and supersymmetry breaking occur at once by the interplay between the dilaton field as inflaton and the condensate gauge-singlet field. The model satisfies the slow-roll condition which solves the eta-problem. When the particle rolls down along the minimized trajectry of the potential V(S,Y) at a duality invariant fixed point T=1, we can obtain the e-fold value \sim 57. And then the cosmological parameters obtained from our model well match with the recent WMAP data combined with other experiments. This observation is suggesting to consider the string-inspired supergravity as the fundamental of the theory of the evolution of the universe as well as the particle theory.
Hayashi Mitsuo J.
Watanabe Tomoki
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