论文标题
共振贡献$ ϕ（1020,1680）\ to k \ bar k $三体衰减$ b \ to k \ bar k H $
Resonance contributions $ϕ(1020,1680)\to K\bar K$ for the three-body decays $B\to K\bar K h$
论文作者
论文摘要
我们研究了$ k^+k^ - $和$ k^0 \ bar k^0 $起源于中间状态$ ϕ（1020）$和$ ϕ（1680）$的$ b \ b \ bar k h $中的$ b \ bar k h $，以$ h =（π，k）$。子过程$ ϕ（1020,1680）\至k \ bar k $通过KAON电磁形式尺寸将$ k \ bar k $系统的分布幅度引入，并从合适的结果中获得的系数。 The predictions of the branching fractions for the decays $B\toϕ(1680)h$ with the intermediate state $ϕ(1680)$ decays into $K^+K^-$ or $K^0\bar K^0$ are about $6\%$-$8\%$ of the corresponding results for the quasi-two-body decays $B\toϕ(1020)h \to K^+ K^- h $在这项工作中。
We study the contributions for the $K^+K^-$ and $K^0\bar K^0$ originated from the intermediate states $ϕ(1020)$ and $ϕ(1680)$ in the charmless three-body decays $B\to K\bar K h$, with $h=(π, K)$, in the perturbative QCD approach. The subprocesses $ϕ(1020,1680)\to K\bar K$ are introduced into the distribution amplitudes of $K\bar K$ system via the kaon electromagnetic form factors with the coefficients taken from the fitted results. The predictions of the branching fractions for the decays $B\toϕ(1680)h$ with the intermediate state $ϕ(1680)$ decays into $K^+K^-$ or $K^0\bar K^0$ are about $6\%$-$8\%$ of the corresponding results for the quasi-two-body decays $B\toϕ(1020)h \to K^+ K^- h$ in this work.
