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arXiv · 2406.19083

Axion Detection Experiments Meet the Majoron

Qiuyue Liang·Xavier Ponce Díaz·Tsutomu T. Yanagida
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Abstract

The majoron is a well-motivated light (pseudo-Nambu-Goldstone) boson associated with the spontaneous breaking of a global lepton-number symmetry. In this {\it letter}, we relate the spontaneous breaking scale and its soft-breaking mass by requiring that the majoron is the main component of the dark matter. An electromagnetic-anomalous coupling can be induced by minimally modifying the original majoron model, surprisingly, predicting a parameter region that largely overlaps with the QCD-axion dark matter band. Thus, we expect that axion search experiments meet the majoron.

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Qiuyue Liang, Xavier Ponce Díaz, Tsutomu T. Yanagida. 2024-06-27. Axion Detection Experiments Meet the Majoron. https://arxiv.org/abs/2406.19083

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