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arXiv · 2306.03464

Belle II observation prospects for axion-like particle production from $B$ meson annihilation decay

Yi Zhang·Akimasa Ishikawa·Emi Kou·Daniel Thomas Marcantonio·Phillip Urquijo
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Abstract

We investigate a new production mechanism of axion-like particle (ALP) from $B$ meson annihilation decays and its observation potential at the Belle and Belle II experiments. This mechanism allows for the production of ALP from $B$ meson decays in association with a large variety of mesons. In this article, we first estimate the branching ratios of such processes with a perturbative QCD method. Focussing on the most promising $B \to h a^{\prime}$ ($h=K^\pm, \pi^\pm, D^0$ and $D_s$) channels, we perform sensitivity studies for $a^{\prime}$ decaying invisibly or into diphoton with Belle and Belle II experiments.

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Yi Zhang, Akimasa Ishikawa, Emi Kou, Daniel Thomas Marcantonio, Phillip Urquijo. 2023-06-06. Belle II observation prospects for axion-like particle production from $B$ meson annihilation decay. https://arxiv.org/abs/2306.03464

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