Factorization and SU(2) heavy flavor symmetry forB-meson decays producing charmonium

1 August 1995

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 52 (3) , 1597-1613
https://doi.org/10.1103/physrevd.52.1597

Abstract

We show that the factorization assumption in color-suppressed B meson decays is not ruled out by experimental data on B \ra K(K^*) + J/\Psi(\Psi^{'}). The problem previously pointed out might be due to an inadequate choice of hadronic form factors. Within the Isgur-Wise SU(2) heavy flavor symmetry framework, we search for possible q^2 dependence of form factors that are capable of explaining simultaneously the large longitudinal polarization \rho_L observed in B \ra K^* + J/\Psi and the relatively small ratio of rates R_{J/\Psi} = \Gamma(B \ra K^* + J/\Psi)/\Gamma(B \ra K + J/\Psi). We find out that the puzzle could be essentially understood if the A_1(q^2) form factor is frankly decreasing, instead of being almost constant or increasing as commonly assumed. Of course, the possibility of understanding experimental data is not necessarily a proof of factorization

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This publication has 19 references indexed in Scilit:

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