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arXiv · 2405.00918

Confronting MSSM flat direction inflation with Planck/BICEP data

Naoyuki Haba·Yasuhiro Shimizu·Yoshihiro Tanabe·Toshifumi Yamada
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Abstract

We study the scenario of inflection point inflation where a flat direction of the minimal supersymmetric standard model (MSSM) is identified with the inflaton. Specifically, we consider in full generality the cases where a MSSM flat direction is lifted by a higher-dimensional superpotential whose dimension is n = 4, 5, 6, 7, 9. We confront the inflection point inflation scenarios with various n with the Planck and BICEP data, and thereby constrain the soft SUSY breaking mass and the coefficient of the higher-dimensional operator that lifts the flat direction.

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Naoyuki Haba, Yasuhiro Shimizu, Yoshihiro Tanabe, Toshifumi Yamada. 2024-05-02. Confronting MSSM flat direction inflation with Planck/BICEP data. https://arxiv.org/abs/2405.00918

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