Document Detail

Spectral-fluctuations test of the quark-model baryon spectrum.
MedLine Citation:
PMID:  17358933     Owner:  NLM     Status:  PubMed-not-MEDLINE    
We 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.
C Fernández-Ramírez; A Relaño
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Publication Detail:
Type:  Journal Article     Date:  2007-02-08
Journal Detail:
Title:  Physical review letters     Volume:  98     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-03-15     Completed Date:  2007-06-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  062001     Citation Subset:  -    
Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid, Spain.
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