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arXiv 1703.09718hep-phnucl-th
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扩展组分夸克模型中可能的$D^{(*)}\bar{D}^{(*)}$和$B^{(*)}\bar{B}^{(*)}$分子态

Possible $D^{(*)}\bar{D}^{(*)}$ and $B^{(*)}\bar{B}^{(*)}$ molecular states in the extended constituent quark models

You-Chang Yang, Zhi-Yun Tan, Jialun Ping, Hong-Shi Zong

摘要:

本文在组分夸克模型的框架下研究了可能的中性$D^{(*)}\bar{D}^{(*)}$和$B^{(*)}\bar{B}^{(*)}$分子态,并将该模型扩展为包括$s$通道的单胶子交换。利用不同类型的夸克-夸克势,用高斯展开法求解四体薛定谔方程。得到了$D^{(*)}\bar{D}^{(*)}$与$J^{PC}=1^{++},2^{++}$、$B^{(*)}\bar{B}^{(*)}$与$J^{PC}=0^{++},1^{+-},1^{++},2^{++}$的束缚态。分子状态$D^{*}\bar{D}$与$J^{PC}=1^{++}$和$B^{*}\bar{B}$与$J^{PC}=1^{+-}$分别是$X(3872)$和$Z^0_b(10610)$的良好候选者。

英文摘要:

The possible neutral $D^{(*)}\bar{D}^{(*)}$ and $B^{(*)}\bar{B}^{(*)}$ molecular states are studied in the framework of the constituent quark models, which is extended by including the $s$-channel one gluon exchange. Using different types of quark-quark potentials, we solve the four-body Schrödinger equation by means of the Gaussian expansion method. The bound states of $D^{(*)}\bar{D}^{(*)}$ with $J^{PC}=1^{++},2^{++}$ and $B^{(*)}\bar{B}^{(*)}$ with $J^{PC}=0^{++},1^{+-},1^{++},2^{++}$ are obtained. The molecular states $D^{*}\bar{D}$ with $J^{PC}=1^{++}$ and $B^{*}\bar{B}$ with $J^{PC}=1^{+-}$ are good candidates for the $X(3872)$ and $Z^0_b(10610)$, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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