Mass spectra of the heavy baryons ΛQ and ΣQ(*) from QCD sum rules

被引：33

作者：

Zhang, Jian-Rong ^{[1
]}

Huang, Ming-Qiu ^{[1
]}

机构：

[1] Natl Univ Def Technol, Dept Phys, Changsha 410073, Hunan, Peoples R China

来源：

PHYSICAL REVIEW D | 2008年 / 77卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.77.094002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use QCD sum rule approach to calculate the masses of the ground-state Lambda(Q) and Sigma(()(Q)*()) baryons. Contributions of the operators up to dimension six are included in operator product expansion. The resulting heavy baryonic masses from the calculations are m(Lambda b)=5.69 +/- 0.13 GeV, and m(Lambda c)=2.31 +/- 0.19 GeV for Lambda(Q); m(Sigma b)=5.73 +/- 0.21 GeV, m(Sigma b)*=5.81 +/- 0.19 GeV, m(Sigma c)=2.40 +/- 0.31 GeV and m(Sigma c)*=2.56 +/- 0.24 GeV for Sigma(()(Q)*()), respectively, which are in good agreement with the experimental values.

引用

页数：5

共 50 条

[1] Light cone QCD sum rules study of the semileptonic heavy ΞQ and ΞQ′ transitions to Ξ and Σ baryons
Azizi, K.
Sarac, Y.
Sundu, H.
EUROPEAN PHYSICAL JOURNAL A, 2012, 48 (01): : 1 - 13
[2] Light cone QCD sum rules study of the semileptonic heavy ΞQ and Ξ′Q transitions to Ξ and Σ baryons
K. Azizi
Y. Sarac
H. Sundu
The European Physical Journal A, 2012, 48
[3] Magnetic moments of heavy ΞQ baryons in light cone QCD sum rules
Aliev, T. M.
Azizi, K.
Ozpineci, A.
PHYSICAL REVIEW D, 2008, 77 (11):
[4] SPECTRA OF HEAVY BARYONS FROM QCD SPECTRAL SUM-RULES
BAGAN, E
CHABAB, M
DOSCH, HG
NARISON, S
PHYSICS LETTERS B, 1992, 287 (1-3) : 176 - 178
[5] Mass splitting of heavy-baryons from QCD sum rules
Albuquerque, R. M.
Narison, S.
Nielsen, M.
19TH INTERNATIONAL IUPAP CONFERENCE ON FEW-BODY PROBLEMS IN PHYSICS, 2009, 3
[6] Analysis of the ΛQ baryons in the nuclear matter with the QCD sum rules
Zhi-Gang Wang
The European Physical Journal C, 2011, 71
[7] Analysis of the ΛQ baryons in the nuclear matter with the QCD sum rules
Wang, Zhi-Gang
EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (12): : 1 - 6
[8] Analysis of ΣQ baryons in nuclear matter with QCD sum rules
Wang, Zhi-Gang
PHYSICAL REVIEW C, 2012, 85 (04):
[9] Doubly heavy baryons in QCD sum rules
Zhang, Jian-Rong
Huang, Ming-Qiu
PHYSICAL REVIEW D, 2008, 78 (09):
[10] Doubly heavy Baryons from QCD Spectral Sum Rules
Albuquerque, R. M.
Narison, S.
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2010, 207-08 : 265 - 268

← 1 2 3 4 5 →