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

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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.date.accessioned2010-12-14T20:40:01Z
dc.date.available2010-12-14T20:40:01Z
dc.date.issued2005-04
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.identifier.citationL. Y. Zhu et al. Physical Review C 71, no. 4 (2005): 044603(17).en_US
dc.identifier.issn0556-2813
dc.identifier.urihttp://hdl.handle.net/1903/11046
dc.relation.isAvailableAtCollege of Computer, Mathematical & Physical Sciencesen_us
dc.relation.isAvailableAtPhysicsen_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
dc.subjectPhysicsen_US
dc.subjectPhotonen_US
dc.titleCross section measurements of charged pion photoproduction in hydrogen and deuterium from 1.1 to 5.5 GeVen_US
dc.typeArticleen_US

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