Chiral SU(3) quark model study of tetraquark states: Cnn̄s̄/ css̄s̄*

Hai Xia Zhang; Wen Ling Wang; Yuan Ben Dai; Zong Ye Zhang

doi:10.1088/0253-6102/49/2/35

Chiral SU(3) quark model study of tetraquark states: Cnn̄s̄/ css̄s̄*

Hai Xia Zhang^*
, Wen Ling Wang
, Yuan Ben Dai
, Zong Ye Zhang

^*Corresponding author for this work

CAS - Institute of High Energy Physics
Central China Normal University
CAS - Institute of Theoretical Physics

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The new members of the charm-strange family D^* _sJ(2317), D_sJ(2460), and D_s(2632), which have the surprising properties, are challenging the present models. Many theoretical interpretations have been devoted to this issue. Most authors suggest that they are not the conventional c quark model states, but possibly are four-quark states, molecule states, or mixtures of a P-wave c and a four-quark state. In this work, we follow the four-quark-state picture, and study the masses of cn/cs states (n is u or d quark) in the chiral SU(3) quark model. The numerical results show that the mass of the mixed four-quark state (cn/cs) with spin parity J^P = 0⁺ might not be D_s(2632). At the same time, we also conclude that D^*_sJ (2317) and D_sJ (2460) cannot be explained as the pure four-quark state.

Original language	English
Pages (from-to)	414-420
Number of pages	7
Journal	Communications in Theoretical Physics
Volume	49
Issue number	2
DOIs	https://doi.org/10.1088/0253-6102/49/2/35
State	Published - 15 Feb 2008
Externally published	Yes

Keywords

Chiral symmetry
Four-quark states
Quark model

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10.1088/0253-6102/49/2/35

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@article{1f1d4109fadb42d894582b3291960224,

title = "Chiral SU(3) quark model study of tetraquark states: Cn{\=n}{\=s}/ cs{\=s}{\=s}*",

abstract = "The new members of the charm-strange family D* sJ(2317), DsJ(2460), and Ds(2632), which have the surprising properties, are challenging the present models. Many theoretical interpretations have been devoted to this issue. Most authors suggest that they are not the conventional c quark model states, but possibly are four-quark states, molecule states, or mixtures of a P-wave c and a four-quark state. In this work, we follow the four-quark-state picture, and study the masses of cn/cs states (n is u or d quark) in the chiral SU(3) quark model. The numerical results show that the mass of the mixed four-quark state (cn/cs) with spin parity JP = 0+ might not be Ds(2632). At the same time, we also conclude that D*sJ (2317) and DsJ (2460) cannot be explained as the pure four-quark state.",

keywords = "Chiral symmetry, Four-quark states, Quark model",

author = "Zhang, \{Hai Xia\} and Wang, \{Wen Ling\} and Dai, \{Yuan Ben\} and Zhang, \{Zong Ye\}",

year = "2008",

month = feb,

day = "15",

doi = "10.1088/0253-6102/49/2/35",

language = "英语",

volume = "49",

pages = "414--420",

journal = "Communications in Theoretical Physics",

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T1 - Chiral SU(3) quark model study of tetraquark states

T2 - Cnn̄s̄/ css̄s̄*

AU - Zhang, Hai Xia

AU - Wang, Wen Ling

AU - Dai, Yuan Ben

AU - Zhang, Zong Ye

PY - 2008/2/15

Y1 - 2008/2/15

N2 - The new members of the charm-strange family D* sJ(2317), DsJ(2460), and Ds(2632), which have the surprising properties, are challenging the present models. Many theoretical interpretations have been devoted to this issue. Most authors suggest that they are not the conventional c quark model states, but possibly are four-quark states, molecule states, or mixtures of a P-wave c and a four-quark state. In this work, we follow the four-quark-state picture, and study the masses of cn/cs states (n is u or d quark) in the chiral SU(3) quark model. The numerical results show that the mass of the mixed four-quark state (cn/cs) with spin parity JP = 0+ might not be Ds(2632). At the same time, we also conclude that D*sJ (2317) and DsJ (2460) cannot be explained as the pure four-quark state.

AB - The new members of the charm-strange family D* sJ(2317), DsJ(2460), and Ds(2632), which have the surprising properties, are challenging the present models. Many theoretical interpretations have been devoted to this issue. Most authors suggest that they are not the conventional c quark model states, but possibly are four-quark states, molecule states, or mixtures of a P-wave c and a four-quark state. In this work, we follow the four-quark-state picture, and study the masses of cn/cs states (n is u or d quark) in the chiral SU(3) quark model. The numerical results show that the mass of the mixed four-quark state (cn/cs) with spin parity JP = 0+ might not be Ds(2632). At the same time, we also conclude that D*sJ (2317) and DsJ (2460) cannot be explained as the pure four-quark state.

KW - Chiral symmetry

KW - Four-quark states

KW - Quark model

UR - https://www.scopus.com/pages/publications/51349098450

U2 - 10.1088/0253-6102/49/2/35

DO - 10.1088/0253-6102/49/2/35

M3 - 文章

AN - SCOPUS:51349098450

SN - 0253-6102

VL - 49

SP - 414

EP - 420

JO - Communications in Theoretical Physics

JF - Communications in Theoretical Physics

IS - 2

ER -

Chiral SU(3) quark model study of tetraquark states: Cnn̄s̄/ css̄s̄*

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Keywords

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