Breakdown of chiral expansion for parton distributions

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dc.creatorKivel, N.
dc.creatorPolyakov, M. V.
dc.date2007-07-15
dc.date2008-06-05
dc.date.accessioned2026-07-07T11:52:47Z
dc.date.available2026-07-07T11:52:47Z
dc.descriptionIn the framework of the chiral perturbation theory we computed two- and three-loop corrections to the pion parton distributions which posses $δ$-function singularities at x->0. This calculation explicitly demonstrates that in the region of small x ~ mpi^2/(4 pi F)^2 standard ChPT breaks down and one needs resummation of all orders. We give an example of such resummation.
dc.description10 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0707.2208
dc.identifierhttp://arxiv.org/abs/0707.2208
dc.identifierPhys.Lett.B664:64-69,2008
dc.identifierdoi:10.1016/j.physletb.2008.04.048
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204304
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.subjectNuclear Experiment
dc.titleBreakdown of chiral expansion for parton distributions
dc.typetext

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