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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/15782
Título

Spectral-Fluctuations Test of the Quark-Model Baryon Spectrum

AutorFernández-Ramírez, César; Relaño, Armando
Palabras clave[PACS] Baryons (including antiparticles)
[PACS] Quantum chaos; semiclassical methods
[PACS] Relativistic quark model
Fecha de publicación8-feb-2007
EditorAmerican Physical Society
CitaciónPhysical Review Letters 98(6): 062001 (2007)
ResumenWe study the low-lying baryon spectrum (up to 2.2 GeV) provided by experiments and different quark models using statistical tools which allow us to postulate the existence of missing levels in spectra. We confirm that the experimental spectrum is compatible with random matrix theory, the paradigmatic model of quantum chaos, and we find that the quark models are more similar to a Poisson distribution, which is not compatible with what should be expected in a correlated spectrum. From our analysis it stems that the spectral fluctuation properties of quark-model spectra are incompatible with experimental data. This result can be used to enlighten the problem of missing resonances.
Descripción4 pages, 1 table, 1 figure.--PACS nrs.: 14.20.-c; 05.45.Mt; 12.39.Ki.--ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0701111v1
Versión del editorhttp://link.aps.org/doi/10.1103/PhysRevLett.98.062001
URIhttp://hdl.handle.net/10261/15782
DOI10.1103/PhysRevLett.98.062001
ISSN0031-9007 (Print)
1079-7114 (Online)
1092-0145 (CD-ROM)
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