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Updated: Jul 14, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Complex hybrid inflation and baryogenesis
David Delepine1, Carlos Martínez, L Arturo Ureña-López
1Instituto de Física de la Universidad de Guanajuato, C.P. 37150, León, Guanajuato, México. delepine@fisica.ugto.mx
Abstract:
We propose a hybrid inflation model with a complex waterfall field which contains an interaction term that breaks the U(1) global symmetry associated with the waterfall field charge. We show that the asymmetric evolution of the real and imaginary parts of the complex field during the phase transition at the end of inflation translates into a charge asymmetry. The latter strongly depends on the vacuum expectation value of the waterfall field, which is well constrained by diverse cosmological observations.
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