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

[41] THE BARYON ISGUR-WISE FUNCTION IN THE LARGE-NC LIMIT
JENKINS, E
MANOHAR, AV
WISE, MB
NUCLEAR PHYSICS B, 1993, 396 (01) : 38 - 52
[42] Excited baryon decay widths in large Nc QCD -: art. no. 056001
Cohen, TD
Dakin, DC
Nellore, A
Lebed, RF
PHYSICAL REVIEW D, 2004, 69 (05):
[43] Baryon magnetic moments in large-Nc chiral perturbation theory
Flores-Mendieta, Ruben
PHYSICAL REVIEW D, 2009, 80 (09):
[44] The sigma meson from QCD sum rules for large-Nc Regge spectra
Afonin, S. S.
Solomko, T. D.
EUROPEAN PHYSICAL JOURNAL C, 2016, 76 (12):
[45] Excited baryons in large Nc QCD
Cohen, TD
NUCLEAR PHYSICS A, 2005, 755 : 40C - 48C
[46] Meson dominance of hadron form factors and large-Nc phenomenology
Masjuan, Pere
Ruiz Arriola, Enrique
Broniowski, Wojciech
PHYSICAL REVIEW D, 2013, 87 (01)
[47] Nucleon-nucleon scattering observables in large-Nc QCD
Cohen, TD
Gelman, BA
PHYSICS LETTERS B, 2002, 540 (3-4) : 227 - 232
[48] Baryon magnetic moment in large-Nc chiral perturbation theory: for=3
Flores-Mendieta, Ruben
Isaac Garcia, Carlos
Hernandez, Johann
Anabel Trejo, Maria
PHYSICAL REVIEW D, 2021, 104 (11)
[49] Analysis of baryon magnetic moments in large-Nc, chiral perturbation theory
Flores-Mendieta, Ruben
INTERNATIONAL WORKSHOP ON CHIRAL SYMMETRY IN HADRONS AND NUCLEI, 2010, 1322 : 435 - 439
[50] Δ→Nγ in large-Nc QCD -: art. no. 242001
Jenkins, E
Ji, XD
Manohar, AV
PHYSICAL REVIEW LETTERS, 2002, 89 (24)

← 1 2 3 4 5 →