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arXiv · 2211.12155

Axion Couplings in Gauged $U(1)'$ Extensions of the Standard Model

Alexey Kivel·Julien Laux·Felix Yu
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Abstract

We explore the effective theory of an axion in a gauged baryon number symmetry extension of the Standard Model (SM), where the axion is realized from a Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) model construction. Integrating out the anomalons realizes a pattern of effective Wilson coefficients reflecting the factorization between the anomalous Peccei-Quinn and gauged baryon number symmetries. We construct and analyze the chiral transformation invariance of the axion effective theory, accounting for possible flavor-violating axion couplings. We calculate and study the unique phenomenology of the axion and $Z'$ boson, and we present the current collider limits on these particles in the $\{m_{Z'}, g_B\}$, $\{m_a, G_{a \gamma \gamma} \}$, and $\{m_a, f_a^{-1}\}$ planes.

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Alexey Kivel, Julien Laux, Felix Yu. 2022-11-22. Axion Couplings in Gauged $U(1)'$ Extensions of the Standard Model. https://doi.org/10.1007/jhep03(2023)078

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