论文标题
$ \ bar {b}^0 \ to d^{*+} \ bar {d}^{*0} k^ - $反应检测$ i = 0，j^p = 1^+$ $ x_0（2866）$
The $\bar{B}^0 \to D^{*+} \bar{D}^{*0} K^- $ reaction to detect the $I=0, J^P=1^+$ partner of the $X_0(2866)$
论文作者
论文摘要
我们选择了$ \ bar {b}^0 \至d^{*+} \ bar {d}^{*0} k^ - $反应，以观察$ i = 0，j^p = 1^+$（$ r_1 $）$ x_0（2866）$ d^*^bar $ d^*\ bar^$ n of the $ x_0（2866）$ sneming。反应通过最喜欢的Cabibbo衰减模式通过外部排放进行，并且人们将$ r_1 $状态视为非常强的峰值与$ d^{*+} k^ - $ spectrum中的背景相比。此反应中$ R_1 $生产的分支比率估计为$ 4 \ times 10^{ - 3} $的订单。所使用的方法应用于$ b^+ \ do d^ - d^+ k^+ $反应，在$ d^ - k^+ $ spectrum中与LHCB实验非常吻合的信号与背景的比例非常吻合，该实验观察到$ x_0（2866）$。
We have chosen the $\bar{B}^0 \to D^{*+} \bar{D}^{*0} K^-$ reaction in order to observe the $I=0, J^P=1^+$ ($R_1$) partner state of the $X_0(2866)$ stemming from the $D^*\bar{K}^*$ molecular picture. The reaction proceeds via external emission in the most favored Cabibbo decay mode and one observes the $R_1$ state as a very strong peak versus the background in the $D^{*+} K^-$ spectrum. The branching ratio for $R_1$ production in this reaction is estimated of the order of $4\times 10^{-3}$. The method used, applied to the $B^+ \to D^- D^+ K^+$ reaction, produces a ratio of signal to background in the $D^- K^+$ spectrum in very good agreement with the LHCb experiment that observed the $X_0(2866)$.
