Hyperspherical harmonic study of identical-flavor four-quark systems

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Title:	Hyperspherical harmonic study of identical-flavor four-quark systems
Authors:	Vijande, Javier ; Barnea, N.; Valcarce, A.
Keywords:	Wave-functions
Issue Date:	15-Jun-2007
Publisher:	Elsevier
Citation:	Nuclear Physics A 790(1-4): 542c-545c (2007)
Abstract:	We 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.
Description:	4 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
URI:	http://hdl.handle.net/10261/9111
DOI:	http://dx.doi.org/10.1016/j.nuclphysa.2007.03.091
ISSN:	0375-9474
Appears in Collections:	(IFIC) Artículos

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