Spectrum and Bethe-Salpeter amplitudes of Omega baryons from lattice QCD

doi:http://dx.doi.org/10.1088/1674-1137/40/4/041001

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	Spectrum and Bethe-Salpeter amplitudes of Omega baryons from lattice QCD
	Liang, J ; Sun, W ; Chen, Y ; Qiu, WF ; Gong, M ; Liu, C2 ; Liu, YB ; Liu, ZF ; Ma, JP; Zhang, JB
刊名	CHINESE PHYSICS C
	2016
卷号	40 期号:4 页码:41001
关键词	Omega baryon ANISOTROPIC LATTICES excited state SYSTEMS BS amplitude
DOI	http://dx.doi.org/10.1088/1674-1137/40/4/041001
英文摘要	The Omega baryons with J(P) = 3/2(+/-), 1/2(+/-) are studied on the lattice in the quenched approximation. Their mass levels are ordered as M3/2+ < M3/2- approximate to M1/2- < M1/2+, as is expected from the constituent quark model. The mass values are also close to those of the four Omega states observed in experiments. We calculate the Bethe-Salpeter amplitudes of Omega(3/2(+)) and Omega(1/2(+)) and find there is a radial node for the Omega(1/2(+)) Bethe-Salpeter amplitude, which may imply that Omega(1/2(+)) is an orbital excitation of Omega baryons as a member of the (D, L-N(P))= (70,0(2)(+)) supermultiplet in the SU(6) circle times O(3) quark model description. Our results are helpful for identifying the quantum numbers of experimentally observed Omega states.
学科主题	Physics
语种	英语
资助机构	National Science Foundation of China (NSFC) [11105153, 11335001, 11405053] ; Youth Innovation Promotion Association of CAS, NSFC [11261130311] ; DFG [CRC 110] ; NSFC [CRC 110]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23324]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Theoret Ctr Sci Facil, Beijing 100049, Peoples R China 3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 4.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 6.Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Liang, J,Sun, W,Chen, Y,et al. Spectrum and Bethe-Salpeter amplitudes of Omega baryons from lattice QCD[J]. CHINESE PHYSICS C,2016,40(4):41001.
APA	Liang, J.,Sun, W.,Chen, Y.,Qiu, WF.,Gong, M.,...&Zhang, JB.(2016).Spectrum and Bethe-Salpeter amplitudes of Omega baryons from lattice QCD.CHINESE PHYSICS C,40(4),41001.
MLA	Liang, J,et al."Spectrum and Bethe-Salpeter amplitudes of Omega baryons from lattice QCD".CHINESE PHYSICS C 40.4(2016):41001.