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Abstract: In this paper, we show that if we extend D-term hybrid inflation by adding alight scalar field which couples to a waterfall field, large non-Gaussianitycan be generated at the end of inflation. Contribution of cosmic stringsgenerated after D-term inflation to the Cosmic Microwave Background CMBangular power spectrum can be as low as 10% and this also evade the spectralindex problem.



Author: Chia-Min Lin

Source: https://arxiv.org/



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