Cross-Section Measurement of Charged-Pion Photoproduction from Hydrogen and Deuterium

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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, J.-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.F.
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 Colloboration
dc.date.accessioned2011-04-06T14:26:04Z
dc.date.available2011-04-06T14:26:04Z
dc.date.issued2003-06-11
dc.description.abstractWe have measured the differential cross section for the γn→π-p and γp→π+n reactions at θc.m.=90° in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at Eγ≳3.3   GeV exhibit a global scaling behavior for both π- and π+ photoproduction, consistent with the constituent counting rule and the existing π+ photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive π- to π+ photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams.en_US
dc.description.sponsorshipU.S. Department of Energy, National Science Foundation, Ministero dell'Universita e della Ricerca Scientifica e Tecnologica (Italy), Commissariat a l'Energie Atomique (France), Centre de la Recherche Scientifique (France), Istuto Nazionale di Fisica Nucleare (Italy)en_US
dc.identifier.citationZhu, L.Y. et al. "Cross-Section Measurement of Charged-Pion Photoproduction from Hydrogen and Deuterium." Physical Review Letters 91, no. 2 (2003): 022003.en_US
dc.identifier.urihttp://hdl.handle.net/1903/11367
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
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© 2003 The American Physical Society
dc.subjecthydrogenen_US
dc.subjectdeuteriumen_US
dc.subjectpionsen_US
dc.subjectphotoproductionen_US
dc.titleCross-Section Measurement of Charged-Pion Photoproduction from Hydrogen and Deuteriumen_US
dc.typeArticleen_US

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