This paper is the extension of our previous work entitled''Searching a systematics for nonfactorizable contributions to B and B^(0)hadronic decays''.Obtaining the factorizable contributions from the sp...This paper is the extension of our previous work entitled''Searching a systematics for nonfactorizable contributions to B and B^(0)hadronic decays''.Obtaining the factorizable contributions from the spectator-quark model for Nc=3,a systematics was identified among the isospin reduced amplitudes for the nonfactorizable terms amongB→Dπ/D^(∗)π/Dρdecay modes.This systematics enables us to derive a generic formula to help predict the branching fractions forB^(0)−decays.Inspired by this observation,we extend our analysis to p-wave meson emitting decays of B−mesonB→PA/PT/PS,particularlyB→a_(1)D/πD_(1)/πD′1/πD_(2)/πD_(0),which have similar isospin structures and make predictions forB^(0)−decays,for which experimental measurements are not yet available.展开更多
The two-body weak decays B→πD/B→ρD and B→πD are examined using isospin analysis to study nonfactorizable contributions.After determining strong interaction phases and obtaining factorizable contributions from sp...The two-body weak decays B→πD/B→ρD and B→πD are examined using isospin analysis to study nonfactorizable contributions.After determining strong interaction phases and obtaining factorizable contributions from spectator-quark diagrams for Nc=3,we determine nonfactorizable isospin amplitudes from the experimental data for these modes.Our results support the universality of the ratio of nonfactorizable isospin reduced amplitudes for these decays within experimental errors.To demonstrate that these systematics are not coincidental,we also plot our results w.r.t.this ratio.展开更多
文摘This paper is the extension of our previous work entitled''Searching a systematics for nonfactorizable contributions to B and B^(0)hadronic decays''.Obtaining the factorizable contributions from the spectator-quark model for Nc=3,a systematics was identified among the isospin reduced amplitudes for the nonfactorizable terms amongB→Dπ/D^(∗)π/Dρdecay modes.This systematics enables us to derive a generic formula to help predict the branching fractions forB^(0)−decays.Inspired by this observation,we extend our analysis to p-wave meson emitting decays of B−mesonB→PA/PT/PS,particularlyB→a_(1)D/πD_(1)/πD′1/πD_(2)/πD_(0),which have similar isospin structures and make predictions forB^(0)−decays,for which experimental measurements are not yet available.
文摘The two-body weak decays B→πD/B→ρD and B→πD are examined using isospin analysis to study nonfactorizable contributions.After determining strong interaction phases and obtaining factorizable contributions from spectator-quark diagrams for Nc=3,we determine nonfactorizable isospin amplitudes from the experimental data for these modes.Our results support the universality of the ratio of nonfactorizable isospin reduced amplitudes for these decays within experimental errors.To demonstrate that these systematics are not coincidental,we also plot our results w.r.t.this ratio.
