期刊
CHINESE PHYSICS C
卷 45, 期 2, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1674-1137/abcfaa
关键词
exotic mesons; hadron-hadron interaction; heavy flavor; hadron physics
资金
- National Natural Science Foundation of China (NSFC)
- Deutsche Forschungsgemeinschaft (DFG) [12070131001, TRR110]
- Science and Technology Program of Guangzhou [2019050001]
- NSFC [12035007]
- Guangdong Provincial [2019QN01X172]
- Entrepreneurship competition for College Students of SCNU
The recently observed X-0(2900) is a unique candidate with four different flavors, possibly forming a (D)bar *K* hadronic molecule. The search for its heavy quark spin partners can help reveal the nature of X-0(2900) and provide insights into its various possible forms.
The X-0(2900), recently observed by the LHCb Collaboration in the D-K+ invariant mass of the B+ -> D+D-K+ process, is the first exotic candidate with four different flavors, beginning a new era for the hadron community. Under the assumption that the X-0(2900) is a I(J(P)) = 0(0(+)) (D) over bar *K* hadronic molecule, we extracted the whole heavy-quark symmetry multiplet formed by ((D) over bar, (D) over bar*) the doublet and the K* meson. For the bound state case, there would be two additional I(J(P)) = 0(1(+)) hadronic molecules associated with the (D) over barK* and (D) over bar *K* channels, as well as one additional I(J(P)) = 0(2(+)) (D) over bar *K* molecule. In the light quark limit, they are and below the and thresholds, respectively, which are unambiguously fixed by the mass position of the. For the virtual state case, there would be one additional I(J(P)) = 0(1(+)) hadronic molecule, strongly coupled to the (D) over barK* channel, and one additional I(J(P)) = 0(2(+)) (D) over barK* molecule. Searching for these heavy quark spin partners will help shed light on the nature of the X-0(2900).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据