Collins fragmentation function for pions and kaons in a spectator model

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dc.creatorBacchetta, Alessandro
dc.creatorGamberg, Leonard P.
dc.creatorGoldstein, Gary R.
dc.creatorMukherjee, Asmita
dc.date2007-07-23
dc.date.accessioned2026-07-07T11:18:03Z
dc.date.available2026-07-07T11:18:03Z
dc.descriptionWe calculate the Collins fragmentation function in the framework of a spectator model with pseudoscalar pion-quark coupling and a Gaussian form factor at the vertex. We determine the model parameters by fitting the unpolarized fragmentation function for pions and kaons. We show that the Collins function for the pions in this model is in reasonable agreement with recent parametrizations obtained by fits of the available data. In addition, we compute for the first time the Collins function for the kaons.
dc.identifierhttps://arxiv.org/abs/0707.3372
dc.identifierhttp://arxiv.org/abs/0707.3372
dc.identifierPhys.Lett.B659:234-243,2008
dc.identifierdoi:10.1016/j.physletb.2007.09.076
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193211
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCollins fragmentation function for pions and kaons in a spectator model
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