The Valence Quark Distribution of the Pion

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dc.creatorLansberg, J. P.
dc.creatorBissey, F.
dc.creatorCudell, J. R.
dc.creatorCugnon, J.
dc.creatorJaminon, M.
dc.creatorStassart, P.
dc.date2002-08-19
dc.date.accessioned2026-07-07T03:47:50Z
dc.date.available2026-07-07T03:47:50Z
dc.descriptionThe pion structure function is investigated in a simple model, where the pion and its constituent quark fields are coupled through the simplest pseudoscalar coupling. The imaginary part of the forward gamma* pi -> gamma* pi scattering amplitude is evaluated and related to the structure functions. It is shown that the introduction of non-perturbative effects, linked to the size of the pion, allows a connection with the quark distribution. It is predicted that higher-twist terms become negligible for Q^2 larger than ~2 GeV^2, that quarks in the pion have a momentum fraction smaller than in the proton case, and that the momentum sum rule is violated for the pion.
dc.descriptionPresented by J. P. Lansberg at the XXII Physics in Collision Conference (PIC02), Stanford, California, June 20-22, 2002, 3 pages, 4 figures, LaTeX, uses pic02.sty (included)
dc.identifierhttps://arxiv.org/abs/hep-ph/0208173
dc.identifierhttp://arxiv.org/abs/hep-ph/0208173
dc.identifiereConf C020620 (2002) THAP01
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/41770
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Valence Quark Distribution of the Pion
dc.typetext

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