ITP OpenIR  > SCI期刊论文
Xie, JJ; Geng, LS; Geng, LS (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Beihang Univ, Int Res Ctr Nuclei & Particles Cosmos, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
The a(0)(980) and Lambda(1670) in the Lambda(+)(c) -> pi(+)eta Lambda decay
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
AbstractWe propose to study the a(0)(980) and the Lambda(1670) resonances in the Lambda(+)(c) -> pi(+)eta Lambda decay via the final-state interactions of the pi(+)eta and eta Lambda pairs. The weak interaction part proceeds through the c quark decay process: c(ud) -> (s + u + (d) over bar)(ud), while the hadronization part takes place in two mechanisms, differing in how the quarks from the weak decay combines into pi(+)eta Lambda with a q (q) over bar with the quantum numbers of the vacuum. Because the final pi(+)eta and eta Lambda states are in pure isospin I = 1 and I = 0 combinations, the Lambda(+)(c) -> pi(+)eta Lambda decay can be an ideal process to study the a(0)(980) and Lambda(1670) resonances. Describing the final-state interaction in the chiral unitary approach, we find that the pi(+)eta and invariant mass distributions, up to an arbitrary normalization, show clear cusp and peak structures, which can be associated with the a(0)(980) and Lambda(1670) resonances, respectively. The proposed mechanism can provide valuable information on the nature of these resonances and can in principle be tested by facilities such as BEPCII.
2016
Volume76Issue:9Pages:496
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1140/epjc/s10052-016-4342-z
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11475227, 11375024, 11522539, 11505158, 11475015] ; National Natural Science Foundation of China [11475227, 11375024, 11522539, 11505158, 11475015] ; National Natural Science Foundation of China [11475227, 11375024, 11522539, 11505158, 11475015] ; National Natural Science Foundation of China [11475227, 11375024, 11522539, 11505158, 11475015] ; Youth Innovation Promotion Association CAS [2016367] ; Youth Innovation Promotion Association CAS [2016367] ; Youth Innovation Promotion Association CAS [2016367] ; Youth Innovation Promotion Association CAS [2016367] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF151CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF151CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF151CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF151CJ1]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21533
CollectionSCI期刊论文
Corresponding AuthorGeng, LS (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Beihang Univ, Int Res Ctr Nuclei & Particles Cosmos, Beijing 100191, Peoples R China.; Geng, LS (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Xie, JJ,Geng, LS,Geng, LS ,et al. The a(0)(980) and Lambda(1670) in the Lambda(+)(c) -> pi(+)eta Lambda decay[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(9):496.
APA Xie, JJ,Geng, LS,Geng, LS ,Geng, LS ,&Geng, LS .(2016).The a(0)(980) and Lambda(1670) in the Lambda(+)(c) -> pi(+)eta Lambda decay.EUROPEAN PHYSICAL JOURNAL C,76(9),496.
MLA Xie, JJ,et al."The a(0)(980) and Lambda(1670) in the Lambda(+)(c) -> pi(+)eta Lambda decay".EUROPEAN PHYSICAL JOURNAL C 76.9(2016):496.
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