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Coupling constant for Lambda(1405)(K)over-bar N
Xie, JJ; Liu, BC; An, CS; Xie, JJ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
2013
发表期刊PHYSICAL REVIEW C
ISSN0556-2813
卷号88期号:1页码:15203
摘要The value of the Lambda(1405)(K) over bar N coupling constant g(Lambda(1405)(K) over bar) (N) is obtained by fitting it to the experimental data on the total cross sections of the K- p -> pi(0)Sigma(0) reaction. On the basis of an effective Lagrangian approach and isobar model, we show that the value vertical bar g(Lambda(1405)(K) over bar) (N)vertical bar = 1.51 +/- 0.10 could be extracted from the available experimental data by assuming that the s-channel Lambda(1405) resonance plays a dominant role, whereas, the background contributions from the s-channel Lambda(1115), t-channel K*, and u-channel nucleon pole processes are small and can be neglected. However, the u-channel nucleon pole diagram may also give an important contribution in the present calculations. After the background contributions are taken into account, the above value of g(Lambda(1405)(K) over bar) (N) is reduced to vertical bar g(Lambda(1405)(K) over bar) (N)vertical bar = 0.77 +/- 0.07, which is not supported by the previous calculations and the recent CLAS measurements. The theoretical calculations on differential cross sections are also presented, which can be checked by future experiments.
部门归属[Xie, Ju-Jun] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China; [Xie, Ju-Jun; Liu, Bo-Chao] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Liu, Bo-Chao] Xi An Jiao Tong Univ, Dept Appl Phys, Xian 710049, Shanxi, Peoples R China; [An, Chun-Sheng] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; [An, Chun-Sheng] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
关键词Su(3) Symmetry Resonances Scattering Nucleon Lambda State Model Eta Pp
学科领域Physics
资助者National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164]
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收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164] ; National Natural Science Foundation of China [11105126, 10905046, 11205164]
WOS记录号WOS:000321999100006
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15323
专题理论物理所SCI论文
通讯作者Xie, JJ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
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GB/T 7714
Xie, JJ,Liu, BC,An, CS,et al. Coupling constant for Lambda(1405)(K)over-bar N[J]. PHYSICAL REVIEW C,2013,88(1):15203.
APA Xie, JJ,Liu, BC,An, CS,&Xie, JJ .(2013).Coupling constant for Lambda(1405)(K)over-bar N.PHYSICAL REVIEW C,88(1),15203.
MLA Xie, JJ,et al."Coupling constant for Lambda(1405)(K)over-bar N".PHYSICAL REVIEW C 88.1(2013):15203.
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