D-wave charmed and bottomed baryons from QCD sum rules

被引：70

作者：

Chen, Hua-Xing ^{[1
,2
]}

Mao, Qiang ^{[1
,2
,3
]}

Hosaka, Atsushi ^{[4
,5
]}

Liu, Xiang ^{[6
,7
,8
,9
]}

Zhu, Shi-Lin ^{[10
,11
,12
,13
]}

机构：

[1] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China

[2] Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China

[3] Suzhou Univ, Dept Elect & Elect Engn, Suzhou 234000, Peoples R China

[4] Osaka Univ, Res Ctr Nucl Phys, Ibaraki 5670047, Japan

[5] KEK, Ctr Theory, Inst Particle & Nucl Studies, J PARC Branch, Tokai, Ibaraki 3191106, Japan

[6] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

[7] Lanzhou Univ, Res Ctr Hadron, Lanzhou 730000, Peoples R China

[8] Lanzhou Univ, CSR Phys, Lanzhou 730000, Peoples R China

[9] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[10] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[11] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[12] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

[13] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW D | 2016年 / 94卷 / 11期

基金：

中国国家自然科学基金;

关键词：

TO-LEADING-ORDER; OPERATOR PRODUCT EXPANSION; EFFECTIVE FIELD-THEORY; ISGUR-WISE FUNCTION; MESON FORM-FACTORS; HEAVY-QUARK; MASSES; CONDENSATE; MODEL; PHYSICS;

D O I：

10.1103/PhysRevD.94.114016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the D-wave charmed baryons of SUd(3) flavor (3) over bar (F) using the method of QCD sum rules in the framework of heavy quark effective theory. We find that the Lambda(c)(2880), Xi(c)(3055), and Xi(c)(3080) can be well described by the D-wave SU(3) (3) over bar (F) charmed baryon multiplets of J(P) = 3/2(+) and 5/2(+), which contain two lambda-mode orbital excitations; i.e., the Lambda(c)(2880) has J(P) = 5/2(+), and the Xi(c)(3055) and Xi(c)(3080) have J(P) = 3/2(+) and 5/2(+), respectively. Our results also suggest that the Lambda(c)(2880) has a partner state, the Lambda(c)(3/2(+)) of J(P) = 3/2(+). Its mass is around 2.810(-0.18)(+0.33) GeV, and the mass difference between it and the Lambda(c)(2880) is 28(-24)(+45) MeV. We also evaluate the masses of their bottom partners.

引用

页数：20

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