The operator product expansion does not imply parity doubling of hadrons

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dc.creatorCata, Oscar
dc.creatorGolterman, Maarten
dc.creatorPeris, Santi
dc.date2006-02-21
dc.date.accessioned2026-07-07T11:26:54Z
dc.date.available2026-07-07T11:26:54Z
dc.descriptionWe examine whether the fact that QCD is chirally invariant at short distances necessarily leads to the prediction that hadrons form approximate parity doublets, as has been recently put forward by Glozman and collaborators. We show that this is not the case, and we exhibit some of the pitfalls of trying to link the operator product expansion to the hadron spectrum. We illustrate our arguments within a model for scalar and pseudo-scalar mesons used recently by Shifman to argue for parity doubling. We find that, whatever the experimental situation may be, there is no theoretical basis for parity doubling based on the use of the operator product expansion.
dc.description9 pages, LateX
dc.identifierhttps://arxiv.org/abs/hep-ph/0602194
dc.identifierhttp://arxiv.org/abs/hep-ph/0602194
dc.identifierPhys.Rev.D74:016001,2006
dc.identifierdoi:10.1103/PhysRevD.74.016001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195979
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.subjectNuclear Theory
dc.titleThe operator product expansion does not imply parity doubling of hadrons
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