Six-quark structure of d*(2380) in a chiral constituent quark model

doi:10.1103/PhysRevD.96.014036

	*Six-quark structure of d(2380) in a chiral constituent quark model**
	Zhang, ZY; Lu, QF; Huang, F; Shen PN(沈彭年); Dong YB(董宇兵); Lv QF(吕齐放); Zhang ZY(张宗烨); Dong, YB; Shen, PN
刊名	PHYSICAL REVIEW D
	2017
卷号	96 期号:1 页码:14036
ISSN号	2470-0010
DOI	10.1103/PhysRevD.96.014036
文献子类	Article
英文摘要	The structure of d* (2380) is restudied with the single cluster structure in the chiral SU(3) quark model which has successfully been employed to explain the N - N scattering data and the binding energy of deuteron. The binding behavior of such a six quark system is solved by using a variational method. The trial wave function is chosen to be a combination of a basic spherical symmetric component of [(0s)(6)](orb) in the orbital space with 0 (h) over bar omega excitation and an inner structural deformation component of [(0s)(5) (1s)](orb) and [(0s)(4) (0p)(2)](orb) in the orbital space with 2 (h) over bar omega excitation, both of which are in the spatial [6](orb) symmetry. It is shown that the mass of the system is about 2356 MeV, which is qualitatively consistent with the result both from the two-cluster configuration calculation and from the data measured by the WASA Collaborations. When the meson exchange interactions are absent, the attraction is insufficient to form a stable state below the Delta Delta threshold. This result tells us that as long as the medium-range interaction due to the chiral symmetry consideration is properly introduced, the mass of the system will be reduced in a rather large extent. It also implies that the observed d* is a six-quark bound state with respect to the.. threshold, which again supports the conclusion that d* is a hexaquark dominant state.
电子版国际标准刊号	2470-0029
WOS关键词	STATES ; NUCLEON ; DECAY ; DELTA
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000406639300007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284544]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhang, ZY,Lu, QF,Huang, F,et al. Six-quark structure of d*(2380) in a chiral constituent quark model[J]. PHYSICAL REVIEW D,2017,96(1):14036.
APA	Zhang, ZY.,Lu, QF.,Huang, F.,沈彭年.,董宇兵.,...&Shen, PN.(2017).Six-quark structure of d*(2380) in a chiral constituent quark model.PHYSICAL REVIEW D,96(1),14036.
MLA	Zhang, ZY,et al."Six-quark structure of d*(2380) in a chiral constituent quark model".PHYSICAL REVIEW D 96.1(2017):14036.