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Title

Hyperspherical harmonic study of identical-flavor four-quark systems

AuthorsVijande, Javier ; Barnea, N.; Valcarce, A.
KeywordsWave-functions
Issue Date15-Jun-2007
PublisherElsevier
CitationNuclear Physics A 790(1-4): 542c-545c (2007)
AbstractWe present an exact method based on a hyperspherical harmonic expansion to study systems made of quarks and antiquarks of the same flavor. Our formalism reproduces and improves the results obtained with variational approaches. This analysis shows that identical-flavor four-quark systems with non-exotic 2(++) quantum numbers may be bound independently of the quark mass. 0(+-) and 1(+-) states become attractive only for larger quarks masses.
Description4 pages.-- ISI Article Identifier: 000248297600103.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0610287
Contribution to: Few-Body Problems in Physics - FB 18, 18th International IUPAP Conference on Few-Body Problems in Physics (Santos, Brazil, Aug 21-26, 2006).
Publisher version (URL)http://dx.doi.org/10.1016/j.nuclphysa.2007.03.091
URIhttp://hdl.handle.net/10261/9111
DOIhttp://dx.doi.org/10.1016/j.nuclphysa.2007.03.091
ISSN0375-9474
Appears in Collections:(IFIC) Artículos
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