Chiral corrections to the vector and axial couplings of quarks and baryons

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dc.creatorFaessler, Amand
dc.creatorGutsche, Thomas
dc.creatorHolstein, Barry R.
dc.creatorLyubovitskij, Valery E.
dc.date2007-12-20
dc.date2008-06-09
dc.date.accessioned2026-07-07T11:54:46Z
dc.date.available2026-07-07T11:54:46Z
dc.descriptionWe calculate chiral corrections to the semileptonic vector and axial quark coupling constants using a manifestly Lorentz covariant chiral quark approach up to order O(p4) in the two- and tree-flavor picture. These couplings are then used in the evaluation of the corresponding couplings which govern the semileptonic transitions between octet baryon states. In the calculation of baryon matrix elements we use a general ansatz for the spatial form of the quark wave function, without referring to a specific realization of hadronization and confinement of quarks in baryons. Matching the physical amplitudes calculated within our approach to the model-independent predictions of baryon chiral perturbation theory (ChPT) allows one to deduce the connection between our parameters and those of baryon ChPT.
dc.description28 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0712.3437
dc.identifierhttp://arxiv.org/abs/0712.3437
dc.identifierPhys.Rev.D77:114007,2008
dc.identifierdoi:10.1103/PhysRevD.77.114007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205025
dc.subjectHigh Energy Physics - Phenomenology
dc.titleChiral corrections to the vector and axial couplings of quarks and baryons
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