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Title: Electromagnetic decay of {lambda}(1520)

Abstract

The electromagnetic decay processes of excited hyperon states are a very sensitive probe of the structure of hyperons. We will argue that the recent measurements of electromagnetic decay rates indicate that the wave functions of the hyperon ground states should contain sizable components of excited quark states (configuration mixing). Flavor-SU(3) is a broken symmetry and it appears that the hyperon wave functions should preferably be written in a uds-basis, where only the light u and d-quarks are symmetrized, and not in the usual SU(6)-basis.

Authors:
 [1]
  1. Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208 (United States)
Publication Date:
OSTI Identifier:
20864236
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 74; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevC.74.065202; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CONFIGURATION MIXING; D QUARKS; FLAVOR MODEL; GROUND STATES; LAMBDA-1520 BARYONS; PARTICLE DECAY; SU-3 GROUPS; SU-6 GROUPS; SYMMETRY BREAKING; WAVE FUNCTIONS

Citation Formats

Myhrer, F. Electromagnetic decay of {lambda}(1520). United States: N. p., 2006. Web. doi:10.1103/PHYSREVC.74.065202.
Myhrer, F. Electromagnetic decay of {lambda}(1520). United States. doi:10.1103/PHYSREVC.74.065202.
Myhrer, F. Fri . "Electromagnetic decay of {lambda}(1520)". United States. doi:10.1103/PHYSREVC.74.065202.
@article{osti_20864236,
title = {Electromagnetic decay of {lambda}(1520)},
author = {Myhrer, F.},
abstractNote = {The electromagnetic decay processes of excited hyperon states are a very sensitive probe of the structure of hyperons. We will argue that the recent measurements of electromagnetic decay rates indicate that the wave functions of the hyperon ground states should contain sizable components of excited quark states (configuration mixing). Flavor-SU(3) is a broken symmetry and it appears that the hyperon wave functions should preferably be written in a uds-basis, where only the light u and d-quarks are symmetrized, and not in the usual SU(6)-basis.},
doi = {10.1103/PHYSREVC.74.065202},
journal = {Physical Review. C, Nuclear Physics},
number = 6,
volume = 74,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}