B -> K eta' decay as unique probe of eta' meson

Abstract

A theory of the B -> K η' decay is proposed. It is based on the Cabbibo favored b -> \bar{c} c s process followed by a direct materialization of the \bar{c} c pair into the η'. This mechanism works due to a non-valence Zweig rule violating c-quark component of the η', which is unique to its very special nature. This non-perturbative "intrinsic charm" content of the η' is evaluated using the Operator Product Expansion and QCD low energy theorems. Our results are consistent with an unexpectedly large Br(B -> K η') \simeq 7.8 \cdot 10^{-5} recently announced by CLEO.

One reference and a comment are added, minor changes in the text. Latex, 21 pages

References in corpus (1)

• Intrinsic Charm of Vector Mesons: A Possible Solution of the "rho pi" Puzzle

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