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题名: Meson-exchange model for the Lambda(Lambda)over-bar interaction
作者: Zhao, L ;  Li, N ;  Zhu, SL ;  Zou, BS
刊名: PHYSICAL REVIEW D
出版日期: 2013
卷号: 87, 期号:5, 页码:54034
关键词: STATE ;  Y(2175) ;  HYBRID
学科分类: Physics
通讯作者: Zhao, L (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
部门归属: [Zhao, Lu; Zou, Bing-Song] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; [Zhao, Lu; Zou, Bing-Song] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China; [Zhao, Lu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Li, Ning; Zhu, Shi-Lin] Peking Univ, Dept Phys, Beijing 100871, Peoples R China; [Li, Ning; Zhu, Shi-Lin] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China; [Zou, Bing-Song] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: In the present work, we apply the one-boson-exchange potential model to investigate the possibility of Y(2175) and eta(2225) as bound states of Lambda(Lambda) over bar(S-3(1)) and Lambda(Lambda) over bar(S-1(0)), respectively. We consider the effective potential from the pseudoscalar eta exchange and eta' exchange, the scalar sigma exchange, and the vector omega exchange and phi exchange. The eta- and eta'-meson-exchange potential is a repulsive force for the state S-1(0) and attractive for S-3(1). The results depend very sensitively on the cutoff parameter of the omega exchange (Lambda(omega)) and least sensitively on that of the phi exchange (Lambda(phi)). Our result suggests the possible interpretation of Y(2175) and eta(2225) as the bound states of Lambda(Lambda) over bar(S-3(1)) and Lambda(Lambda) over bar(S-1(0)), respectively. DOI: 10.1103/PhysRevD.87.054034
资助者: National Natural Science Foundation of China [11035006, 11121092, 11261130311]; DFG [CRC110]; NSFC; Chinese Academy of Sciences [KJCX2-EW-N01]; Ministry of Science and Technology of China [2009CB825200]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000316796200001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15396
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Zhao, L,Li, N,Zhu, SL,et al. Meson-exchange model for the Lambda(Lambda)over-bar interaction[J]. PHYSICAL REVIEW D,2013,87(5):54034.
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