The inclusive S-wave charmonium production rates in B decays are considered using the Bodwin-Braaten-Lepage approach, including the relativistic corrections and the color-octet mechanism suggested as a possible solution to the ψ' puzzle at the Fermilab Tevatron. We first consider relativistic and radiative corrections to J/ψ→e+e- and J/ψ→ light hadrons (LH’s), in order to determine two nonperturbative parameters, 〈J/ψ||O1(3S1)||J/ψ〉, 〈J/ψ||P1(3S1)||J/ψ〉, in the factorization formulas for these decays. Using these two matrix elements and including the color-octet cc-(3S1) state contribution, we get a moderate increase in the decay rates for B decays into J/ψ (or ψ')+X. Our results B(B→J/ψ (or ψ')+X)=0.58 (0.23)% for Mb=5.3 GeV get closer to the recent CLEO data. As a by-product, we prefer a larger decay rate for ηc→LH compared to the present data.
|Number of pages||7|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Publication status||Published - 1996|
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)