
TL;DR
This paper discusses the theoretical aspects of axino mass, its dependence on symmetries and the Kähler potential, and explores its hierarchical structure and plausible mass ranges within supersymmetric models.
Contribution
It provides a detailed analysis of the axino mass, highlighting its dependence on symmetries and the Kähler potential, and discusses implications for supersymmetric theories.
Findings
Axino mass can be equal to gravitino mass when G_A=0.
Axino mass depends on the Kähler potential when G_A≠0.
Hierarchical mass structures are possible depending on symmetries.
Abstract
I will talk on my recent works. Axino, related to the SUSY transformation of axion, can mix with Goldstino in principle. In this short talk, I would like to explain what is the axino mass and its plausible mass range. The axino mass is known to have a hierarchical mass structure depending on accidental symmetries. With only one axino, if G_A=0 where G=K+ 2ln|W|, we obtain axino mass= gravitino mass. For G_A nonzero, the axino mass depends on the details of the Kaehler potential. I also comment on the usefulness of a new parametrization of the CKM matrix.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Cosmology and Gravitation Theories · Relativity and Gravitational Theory
