https://doi.org/10.1140/epja/i2006-10081-1
Hadron Physics
Spectral patterns in the nonstrange-baryon spectrum
1
Departamento de Fısica Teórica and IFIC, Universidad de Valencia - CSIC, E-46100, Burjassot, Valencia, Spain
2
Grupo de Fısica Nuclear and IUFFyM, Universidad de Salamanca, E-37008, Salamanca, Spain
3
Escuela Superior de Fısica y Matemáticas, Instituto Politécnico Nacional, Edificio 9, 07738, México D.F., Mexico
* e-mail: valcarce@usal.es
Received:
13
June
2006
Accepted:
7
August
2006
Published online:
8
September
2006
We extract, from a quark model potential that reproduces the number and ordering of nonstrange baryonic resonances up to 2.3GeV, the quantum numbers for the dominant configurations in the ground and first nonradial excited states. From the pattern of quantum numbers we identify, from data, spectral regularities that allow us to predict the expected high-spin low-lying spectrum from 2.3 to 3.0GeV. N - Δ degeneracies and N parity doublets showing up can be interpreted in terms of a simple dynamics.
PACS: 12.39.Jh Nonrelativistic quark model – / 14.20.-c Baryons (including antiparticles) – / 14.20.Gk Baryon resonances with S = 0 –
© Società Italiana di Fisica and Springer-Verlag, 2006
