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...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2024-01-01
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Series: | European Physical Journal C: Particles and Fields |
Online Access: | https://doi.org/10.1140/epjc/s10052-023-12333-w |