ITP OpenIR  > 理论物理所2015年知识产出
How to reveal the exotic nature of the P-c(4450)
Guo, FK; Meissner, UG; Wang, W; Yang, Z; Guo, FK (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2015
发表期刊PHYSICAL REVIEW D
卷号92期号:7页码:71502
文章类型Article
摘要The LHCb Collaboration announced two pentaquark-like structures in the J/psi p invariant mass distribution. We show that the current information on the narrow structure at 4.45 GeV is compatible with kinematical effects of the rescattering from chi(c1)p to J/psi p: First, it is located exactly at the chi(c1)p threshold. Second, the mass of the four-star well-established Lambda(1890) is such that a leading Landau singularity from a triangle diagram can coincidentally appear at the chi(c1)p threshold, and third, there is a narrow structure at the chi(c1)p threshold but not at the chi(c0)p and chi(c2)p thresholds. In order to check whether that structure corresponds to a real exotic resonance, one can measure the process Lambda(0)(b) -> K-chi(c1)p. If the P-c(4450) structure exists in the chi(c1)p invariant mass distribution as well, then the structure cannot be just a kinematical effect but is a real resonance; otherwise, one cannot conclude that P-c(4450) is another exotic hadron. In addition, it is also worthwhile to measure the decay Upsilon(1S) -> J/psi p (p) over bar: a narrow structure at 4.45 GeV but not at the chi(c0)p and chi(c2)p thresholds would exclude the possibility of a pure kinematical effect.
学科领域Astronomy & Astrophysics ; Physics
资助者DFG ; DFG ; NSFC [11261130311, 11165005, 11575110] ; NSFC [11261130311, 11165005, 11575110] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; DFG ; DFG ; NSFC [11261130311, 11165005, 11575110] ; NSFC [11261130311, 11165005, 11575110] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
DOIhttp://dx.doi.org/10.1103/PhysRevD.92.071502
关键词[WOS]SINGULARITIES ; BARYONS
收录类别SCI
语种英语
资助者DFG ; DFG ; NSFC [11261130311, 11165005, 11575110] ; NSFC [11261130311, 11165005, 11575110] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; DFG ; DFG ; NSFC [11261130311, 11165005, 11575110] ; NSFC [11261130311, 11165005, 11575110] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Shanghai Natural Science Foundation [11DZ2260700, 15ZR1423100] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20819
专题理论物理所2015年知识产出
通讯作者Guo, FK (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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Guo, FK,Meissner, UG,Wang, W,et al. How to reveal the exotic nature of the P-c(4450)[J]. PHYSICAL REVIEW D,2015,92(7):71502.
APA Guo, FK,Meissner, UG,Wang, W,Yang, Z,&Guo, FK .(2015).How to reveal the exotic nature of the P-c(4450).PHYSICAL REVIEW D,92(7),71502.
MLA Guo, FK,et al."How to reveal the exotic nature of the P-c(4450)".PHYSICAL REVIEW D 92.7(2015):71502.
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