A gluonic mechanism for B --> D eta'

Abstract

We present a calculation of the process B --> D eta' within a heavy-light chiral quark model. We assume that the eta' has a large gluonic component, and its coupling is described via the glue-glue-eta' effective vertex. The main contribution comes from the non-factorizable part of the effective weak Lagrangian at quark level. We find, within our model-dependent assumptions, a branching ratio Br(B --> D eta') = (1.7 -- 3.3) 10^(-4), somewhat below the experimental upper bound 9.4 10^(-4).

17 pages, 4 figures, RevTeX

References in corpus (4)

• $B\to \pi \pi$ Decay in QCD
• Revisiting Charmless Two-Body B Decays involving ${\eta }^{\prime }$ and $\eta$
• Nonfactorizable contributions to the decay mode D^0 -> K^0 \bar{K^0}
• Production of ${\eta }^{\prime }$ from Thermal Gluon Fusion

Cited by in corpus (12)

• Study of color suppressed modes $B^0\to {\bar{D}}^{(\ast )0}{\eta }^{(\prime )}$
• A Heavy-Light Chiral Quark Model
• Color suppressed contributions to the decay modes B_{d,s} -> D_{s,d} D_{s,d}, B_{d,s} -> D_{s,d} D^*_{s,d}, and B_{d,s} -> D^*_{s,d} D^*_{s,d}
• Branching Fraction Measurements of the Color-Suppressed Decays B0bar to D(*)0 pi0, D(*)0 eta, D(*)0 omega, and D(*)0 eta_prime and Measurement of the Polarization in the Decay B0bar to D*0 omega
• On the Colour Suppressed Decay Modes B^0 --> D_s^+ D_s^- and B_s^0 --> D^+ D^-
• Power corrections to the space-like transition form factor F_{η^{\prime}g^{*}g^{*}}(Q^2,ω)
• The Isgur-Wise Function within a Modified Heavy-Light Chiral Quark Model
• Non-factorizable contribtion to $\overline{B_d^0}\to {\pi }^0{D}^0$
• A note on the baryonic B-->Lambdabar p eta' decay
• On the Decay Modes $\overline{B_{d,s}^0}\to \gamma D^{\ast 0}$
• On the color suppressed contribution to $\bar{B_{d}^0} \rightarrow \, π^0 π^{0}
• Soft end-point and mass corrections to the eta' g*g* vertex function