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Cross section measurements of charged pion photoproduction in hydrogen and deuterium from 1.1 to 5.5 GeV

dc.contributor.authorZhu, L.Y.
dc.contributor.authorArrington, J.
dc.contributor.authorAverett, T.
dc.contributor.authorBeise, E.
dc.contributor.authorCalarco, J.
dc.contributor.authorChang, T.
dc.contributor.authorChen, J.P.
dc.contributor.authorChudakov, E.
dc.contributor.authorComan, M.
dc.contributor.authorClasie, B.
dc.contributor.authorCrawford, C.
dc.contributor.authorDieterich, S.
dc.contributor.authorDohrmann, F.
dc.contributor.authorDutta, D.
dc.contributor.authorFissum, K.
dc.contributor.authorFrullani, S.
dc.contributor.authorGao, H.
dc.contributor.authorGilman, R.
dc.contributor.authorGlashausser, C.
dc.contributor.authorGomez, J.
dc.contributor.authorHafidi, K.
dc.contributor.authorHansen, O.
dc.contributor.authorHiginbotham, D.W.
dc.contributor.authorHolt, R.J.
dc.contributor.authorde Jager, C.W.
dc.contributor.authorJiang, X.
dc.contributor.authorKinney, E.
dc.contributor.authorKramer, K.
dc.contributor.authorKumbartzki, G.
dc.contributor.authorLeRose, J.
dc.contributor.authorLiyanage, N.
dc.contributor.authorMack, D.
dc.contributor.authorMarkowitz, P.
dc.contributor.authorMcCormick, K.
dc.contributor.authorMeekins, D.
dc.contributor.authorMeziani, Z.-E.
dc.contributor.authorMichaels, R.
dc.contributor.authorMitchell, J.
dc.contributor.authorNanda, S.
dc.contributor.authorPotterveld, D.
dc.contributor.authorRansome, R.
dc.contributor.authorReimer, P.E.
dc.contributor.authorReitz, B.
dc.contributor.authorSaha, A.
dc.contributor.authorSchulte, E.C.
dc.contributor.authorSeely, J.
dc.contributor.authorSirca, S.
dc.contributor.authorStrauch, S.
dc.contributor.authorSulkosky, V.
dc.contributor.authorVlahovic, B.
dc.contributor.authorWeinstein, L.B.
dc.contributor.authorWijesooriya, K.
dc.contributor.authorWilliamson, C.
dc.contributor.authorWojtsekhowski, B.
dc.contributor.authorXiang, H.
dc.contributor.authorXiong, F.
dc.contributor.authorXu, W.
dc.contributor.authorZeng, J.
dc.contributor.authorZheng, X.
dc.contributor.authorJefferson Lab Hall A Collaboration
dc.contributor.authorJefferson Lab E94-104 Collaboration
dc.identifier.citationL. Y. Zhu et al. Physical Review C 71, no. 4 (2005): 044603(17).en_US
dc.description.abstractThe differential cross sections for the γn→π-p and the γp→π+n processes were measured at Jefferson Lab. The photon energies ranged from 1.1 to 5.5 GeV, corresponding to center-of-mass energies from 1.7 to 3.4 GeV. The pion center-of-mass angles varied from 50° to 110°. The π- and π+ photoproduction data both exhibit a global scaling behavior at high energies and high transverse momenta, consistent with the constituent counting rule prediction and the existing π+ data. The data suggest possible substructure of the scaling behavior, which might be oscillations around the scaling value. The data show an enhancement in the scaled cross section at center-of-mass energy near 2.2 GeV. The differential cross section ratios [dσ/dt(γn→π-p)/dσ/dt(γp→π+n)] at high energies and high transverse momenta can be described by calculations based on one-hard-gluon-exchange diagrams.en_US
dc.titleCross section measurements of charged pion photoproduction in hydrogen and deuterium from 1.1 to 5.5 GeVen_US
dc.relation.isAvailableAtCollege of Computer, Mathematical & Physical Sciencesen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.rights.license© 2005 The American Physical Society

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