论文标题
通过强衰减分析识别$ d_ {sj}^*（2860）$作为四个共鸣
Identifying $D_{sJ}^*(2860)$ as a four resonance states through strong decay analysis
论文作者
论文摘要
实验观察到的激动奇怪的魅力介子$ d_ {s0}^*（2317）^{\ pm} $，$ d_ {s1}（2460）^{\ pm} $，$ d_ {s1}}（s1}（2536）（2536） $ d_ {s1}^*（2700）^{\ pm} $，$ d_ {s1}^*（2860）^{\ pm} $，$ d_ {s3}^*（2860）^（2860）^{\ pm} $，和$ d_ {sj {sj {sj} $ siderifience utister ysister yters and siver in strifity and silly in siner ter silly tister，群众。在领先顺序近似中，使用重夸克有效理论，我们研究了它们的强烈衰变，以基于状态魅力的介子和光伪嵌入。分支比分类为$（d_ {s0}^*（2317），d_ {s1}（2460））$ as $（1^3p_0，1p_1）$和$（d_ {s1}（s1}（2536）（2536），d_ {s2}}^*（2573）^*（2573）重夸克双峰。 $ d_ {s1}^*（2700）$ as $ 2^3S_1 $及其旋转合作伙伴，$ 2^1S_0 $在实验中仍然缺少。预测其强烈的衰变行为。 $ d_ {sj}^*（2860）$的分配为四个共振状态$ d_ {s1}^*（2860）$，$ d_ {s2}^*（2860）$，$ d_ {s2} {s2}}^{*\ prime}（2860）$，$ d_ fefer，wer $ d_ {s3}^*（2860）^{\ pm} $应预期质量高于2.86 GEV。 $ d_ {sj}（3040）$更有可能是2 $ p_1 $状态。我们在$（m^2，j）$和$（m^2，n_r）$飞机中构建了实验观察到的奇怪的迷人介子的雷格轨迹，估计$ 1^3d_3 $，$ 1^3f_4 $，$ 1^3f_4 $，$ 1D_2 $，$ 1D_2 $，$ 1F_3 $，$ 1D_3 $，$ 1D_2^$} $} $ 3^3S_1 $，以及$ 3P_1 $状态，并固定Regge线的斜率和截距。此外，还检查了这些较高激发态的强衰减率和分支比率，这区分了这些较高激发态的主要衰减通道。我们的结果可以在LHCB，BESIII，KEK-B和即将到来的Belle II和$ \ overline {\ mbox {\ sffamily p}} $ {\ sffamily anda anda}实验中提供一些重要的线索。
Experimentally observed excited strange charmed mesons $D_{s0}^*(2317)^{\pm}$, $D_{s1}(2460)^{\pm}$, $D_{s1}(2536)^{\pm}$, $D_{s2}^*(2573)^{\pm}$, $D_{s1}^*(2700)^{\pm}$, $D_{s1}^*(2860)^{\pm}$, $D_{s3}^*(2860)^{\pm}$, and $D_{sJ}(3040)^{\pm}$ are identified tentatively according to their spin, parity, and masses. Using the heavy quark effective theory in the leading order approximation, we study their strong decays to ground state charmed mesons plus light pseudoscalar mesons. The branching ratios are classified, $(D_{s0}^*(2317), D_{s1}(2460))$ as $(1^3P_0, 1P_1)$ and $(D_{s1}(2536), D_{s2}^*(2573))$ as $(1P_1^{\prime}, 1^3P_2)$, in heavy quark doublets. The $D_{s1}^*(2700)$ as $2^3S_1$ and its spin partner, $2^1S_0$ is still missing in the experiment. Its strong decay behavior is predicted. The assignment of $D_{sJ}^*(2860)$ as four resonance states $D_{s1}^*(2860)$, $D_{s2}^*(2860)$, $D_{s2}^{*\prime}(2860)$, $D_{s3}^*(2860)$ is favored, where for $D_{s3}^*(2860)^{\pm}$ the mass should be expected to higher than 2.86 GeV. The $D_{sJ}(3040)$ is more likely to be 2$P_1$ state. We construct the Regge trajectories of experimentally observed strange charmed mesons in $(M^2, J)$ and $(M^2, n_r)$ planes, which estimate the masses of $1^3D_3$, $1^3F_4$, $1D_2$, $1^1F_3$, $1D_2^{\prime}$, $1F_3^{\prime}$, $3^3S_1$, and $3P_1$ states with fixing the slopes and intercepts of the Regge lines. Moreover, the strong decay rates and the branching ratios of these higher excited states are also examined, which distinguished the dominant decay channels for these higher excited states. Our results could provide some important clues in LHCb, BESIII, KEK-B, and the forthcoming Belle II and $\overline{\mbox{\sffamily P}}${\sffamily ANDA} experiments.
