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ALP production in weak mesonic decays
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abstract
Axion-Like-Particles are among the most economical and well motivated extensions of the Standard Model. In this work ALP production from hadronic and leptonic meson decays are studied. The hadronization part of these decay amplitudes have been obtained using Brodsky-Lepage method or LQCD, at needs. In particular, the general expressions for ALP emission in mesonic s- and t-channel tree-level processes are thoroughly discussed, for pseudoscalar and vector mesons. Accordingly, the calculation of the decay amplitudes for $M_I\to M_F \,a$ and $M\to \ell \nu a$ are presented. Finally, bounds on the (low-energy effective Lagrangian) ALP-fermion couplings are derived, from present and future flavor experiments.
Forward citations
Cited by 3 Pith papers
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Loop-Level Lepton Flavor Violation and Diphoton Signals in the Minimal Left-Right Symmetric Model
Recasting axion limits onto the one-loop H3 couplings of the minimal left-right symmetric model excludes the right-handed scale up to 2×10^9 GeV and could eventually probe 6×10^11 GeV.
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Comprehensive ALP Searches in Meson Decays
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