Excited baryon phenomenology from large-Nc QCD

被引：93

作者：

Pirjol, D ^{[1
]}

Yan, TM ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Ctr Theoret Sci, Dept Phys, Hsinchu 30043, Taiwan

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.57.5434

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a phenomenological analysis of the strong couplings of the negative-parity L=1 baryons from the perspective of the large-N-c expansion. In the large-N-c limit the mass spectrum and mixing pattern of these states are constrained in a very specific way. The mixing angles are completely determined in this limit, with predictions in good agreement with experiment. In the combined large-N-c and SU(3) limits the pion couplings of the five negative-parity octets to the pound state baryons are given in terms of only 3 independent couplings. The large-N-c predictions for the ratios of strong couplings are tested against experimental data.

引用

页码：5434 / 5443

页数：10

共 50 条

[1] BARYON-PION COUPLINGS FROM LARGE-NC QCD
DASHEN, R
MANOHAR, AV
PHYSICS LETTERS B, 1993, 315 (3-4) : 425 - 430
[2] Highly excited baryons in large-Nc QCD
Matagne, N
Stancu, F
HADRONIC PHYSICS, 2005, 775 : 22 - 31
[3] Excited baryon photoproduction in large Nc QCD
Goity, J. L.
Scoccola, N. N.
INTERNATIONAL JOURNAL OF MODERN PHYSICS E, 2007, 16 (09): : 2898 - 2901
[4] Excited baryons and heavy pentaquarks in large-Nc QCD
Pirjol, D.
Schat, C.
EUROPEAN PHYSICAL JOURNAL A, 2007, 31 (04): : 687 - 690
[5] Aspects of excited baryon phenomenology in the 1/Nc expansion of QCD
Gonzalez de Urreta, E. J.
Scoccola, Norberto N.
XI HADRON PHYSICS, 2010, 1296 : 201 - 206
[6] Decays of excited baryons in the large-Nc expansion of QCD
Goity, J. L.
Scoccola, N. N.
EUROPEAN PHYSICAL JOURNAL A, 2007, 31 (04): : 506 - 508
[7] Δ → Nγ in large-Nc QCD
Jenkins, Elizabeth
Ji, Xiangdong
Manohar, Aneesh V.
Physical Review Letters, 2002, 89 (24) : 242001 - 242001
[8] Tetraquarks in large-Nc QCD
Lucha, Wolfgang
Melikhov, Dmitri
Sazdjian, Hagop
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 2021, 120
[9] Algebraic method for large-Nc QCD
Hosaka, Atsushi
Walet, Niels R.
(50):
[10] A holographic dual of large-Nc QCD
Mateos, D
LARGE NC QCD 2004, PROCEEDINGS, 2005, : 90 - 101

← 1 2 3 4 5 →