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	Evidence for a new sigma(*) resonance with j(p)=1/2(-) in the old data of the k(-)p ->lambda pi(+)pi(-) reaction
	Wu, Jia-Jun1; Dulat, S.2,3; Zou, B. S.1,3
刊名	Physical review d
	2009-07-01
卷号	80期号:1页码:4
ISSN号	1550-7998
DOI	10.1103/physrevd.80.017503
通讯作者	Wu, jia-jun()
英文摘要	Distinctive patterns are predicted by quenched quark models and unquenched quark models for the lowest su(3) baryon nonet with spin parity j(p)=1/2(-). while the quenched quark models predict the lowest 1/2(-) sigma(*) resonance to be above 1600 mev, the unquenched quark models predict it to be around sigma(*)(1385) energy. here we reexamine some old data of the k(-)p ->lambda pi(+)pi(-) reaction and find that besides the well-established sigma(*)(1385) with j(p)=3/2(+), there is indeed some evidence for the possible existence of a new sigma(*) resonance with j(p)=1/2(-) around the same mass but with broader decay width. higher statistic data on relevant reactions are needed to clarify the situation.
WOS关键词	CHIRAL DYNAMICS ; P INTERACTIONS ; BARYON ; STATES ; WIDTH ; MODEL ; MASS
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000268618600090
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2175918
专题	高能物理研究所
通讯作者	Wu, Jia-Jun
作者单位	1.CAS, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China 3.CAS, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Jia-Jun,Dulat, S.,Zou, B. S.. Evidence for a new sigma(*) resonance with j(p)=1/2(-) in the old data of the k(-)p ->lambda pi(+)pi(-) reaction[J]. Physical review d,2009,80(1):4.
APA	Wu, Jia-Jun,Dulat, S.,&Zou, B. S..(2009).Evidence for a new sigma(*) resonance with j(p)=1/2(-) in the old data of the k(-)p ->lambda pi(+)pi(-) reaction.Physical review d,80(1),4.
MLA	Wu, Jia-Jun,et al."Evidence for a new sigma(*) resonance with j(p)=1/2(-) in the old data of the k(-)p ->lambda pi(+)pi(-) reaction".Physical review d 80.1(2009):4.

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