B{r_arrow}K{eta}{sup {prime}} decay as a unique probe of the {eta}{sup {prime}} meson
- Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, British Columbia, V6T 1Z1 (CANADA)
A theory of the B{r_arrow}K{eta}{sup {prime}} decay is proposed. It is based on the Cabibbo-favored b{r_arrow}{bar c}cs process followed by a direct materialization of the {bar c}c pair into the {eta}{sup {prime}}. This mechanism works due to a nonvalence Zweig-rule-violating c-quark component of the {eta}{sup {prime}}, which is unique to its very special nature. This nonperturbative {open_quotes}intrinsic charm{close_quotes} content of the {eta}{sup {prime}} is evaluated using the operator product expansion and QCD low-energy theorems. Our results are consistent with an unexpectedly large B(B{r_arrow}K{eta}{sup {prime}}){approx_equal}7.8{times}10{sup {minus}5} recently announced by CLEO. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 553185
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 11 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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