Evidence that the a0(980) and f0(980) are not elementary particles

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dc.creatorBaru, V.
dc.creatorHaidenbauer, J.
dc.creatorHanhart, C.
dc.creatorKalashnikova, Yu.
dc.creatorKudryavtsev, A.
dc.date2003-08-12
dc.date.accessioned2026-07-07T11:47:38Z
dc.date.available2026-07-07T11:47:38Z
dc.descriptionWe study the interesting problem of whether it is possible to distinguish composite from elementary particles. In particular we generalize a model-independent approach of S. Weinberg to the case of unstable particles. This allows us to apply our formalism to the case of the a0(980) and f0(980) resonances and to address the question whether these particles are predominantly genuine, confined quark states (of $\bar q q$ or $qq\bar q\bar q$ structure) or governed by mesonic components.
dc.description15 pages, 4 Figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0308129
dc.identifierhttp://arxiv.org/abs/hep-ph/0308129
dc.identifierPhys.Lett.B586:53-61,2004
dc.identifierdoi:10.1016/j.physletb.2004.01.088
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202641
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEvidence that the a0(980) and f0(980) are not elementary particles
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