Properties of the $$\eta _q$$ η q leading-twist distribution amplitude and its effects to the $$B/D^+ \rightarrow \eta ^{(\prime )}\ell ^+ \nu _\ell $$ B / D + → η ( ′ ) ℓ + ν ℓ decays

Abstract The $$\eta ^{(\prime )}$$ η ( ′ ) -mesons in the quark-flavor basis are mixtures of two mesonic states $$|\eta _{q}\rangle =|{\bar{u}} u+{\bar{d}} d\rangle /\sqrt{2}$$ | η q ⟩ = | u ¯ u + d ¯ d ⟩ / 2 and $$|\eta _{s}\rangle =|{\bar{s}} s\rangle .$$ | η s ⟩ = | s ¯ s ⟩ . In previous work, we...

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Bibliographic Details
Main Authors: Dan-Dan Hu, Xing-Gang Wu, Hai-Bing Fu, Tao Zhong, Zai-Hui Wu, Long Zeng
Format: Article
Language:English
Published: SpringerOpen 2024-01-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-12333-w