A covariant description of the interactions of axion-like particles and hadrons

Fuente: arXiv
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Main Authors: Balkin, Reuven, Coren, Ta'el, Soreq, Yotam, Williams, Mike
Format: Preprint
Published: 2025
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author Balkin, Reuven
Coren, Ta'el
Soreq, Yotam
Williams, Mike
author_facet Balkin, Reuven
Coren, Ta'el
Soreq, Yotam
Williams, Mike
contents We present a covariant framework for analyzing the interactions and decay rates of axion-like particles (ALPs) that couple to both gluons and quarks. We identify combinations of couplings that are invariant under quark-field redefinitions, and use them to obtain physical expressions for the prominent decay rates of such ALPs, which are compared with previous calculations for scenarios where ALPs couple exclusively to quarks or to gluons. Our framework can be used to obtain ALP decay rates for arbitrary ALP couplings to gluons and quarks across a broad range of ALP masses.
format Preprint
id arxiv_https___arxiv_org_abs_2506_15637
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A covariant description of the interactions of axion-like particles and hadrons
Balkin, Reuven
Coren, Ta'el
Soreq, Yotam
Williams, Mike
High Energy Physics - Phenomenology
High Energy Physics - Experiment
We present a covariant framework for analyzing the interactions and decay rates of axion-like particles (ALPs) that couple to both gluons and quarks. We identify combinations of couplings that are invariant under quark-field redefinitions, and use them to obtain physical expressions for the prominent decay rates of such ALPs, which are compared with previous calculations for scenarios where ALPs couple exclusively to quarks or to gluons. Our framework can be used to obtain ALP decay rates for arbitrary ALP couplings to gluons and quarks across a broad range of ALP masses.
title A covariant description of the interactions of axion-like particles and hadrons
topic High Energy Physics - Phenomenology
High Energy Physics - Experiment
url https://arxiv.org/abs/2506.15637