Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-07-18
Phys.Rev.D78:074030,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
16pages,4figures
Scientific paper
10.1103/PhysRevD.78.074030
We study $B\to J/\Psi \eta^{(\prime)}$ decays and suggest two methods to determine the $\eta-\eta^{\prime}$ mixing angle. We calculate not only the factorizable contribution in QCD facorization scheme but also the nonfactorizable hard spectator corrections in pQCD approach. We get the branching ratio of $B\to J/\Psi \eta$ which is consistent with recent experimental data and predict the branching ratio of $B\to J/\Psi \eta^{\prime}$ to be $7.59\times 10^{-6}$. Two methods for determining $\eta-\eta^{\prime}$ mixing angle are suggested in this paper. For the first method, we get the $\eta-\eta^{\prime}$ mixing angle to be about $-13.1^{\circ}$, which is in consistency with others in the literature. The second method depends on less parameters so can be used to determine the $\eta-\eta^{\prime}$ mixing angle with better accuracy but needs, as an input, the branching ratio for $B\to J/\Psi \eta^{\prime}$which should be measured in the near future.
Du Dong-Sheng
Li Jing-Wu
No associations
LandOfFree
The study of $B\to J/Ψη^{(\prime)}$ decays and determination of $η-η^{\prime}$ mixing angle does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The study of $B\to J/Ψη^{(\prime)}$ decays and determination of $η-η^{\prime}$ mixing angle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The study of $B\to J/Ψη^{(\prime)}$ decays and determination of $η-η^{\prime}$ mixing angle will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-553144