Recoil Polarization for Δ Excitation in Pion Electroproduction

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dc.contributor.authorKelly, J.J.
dc.contributor.authorRoche, R.E.
dc.contributor.authorChai, Z.
dc.contributor.authorJones, M.K.
dc.contributor.authorGayou, O.
dc.contributor.authorSarty, A.J.
dc.contributor.authorFrullani, S.
dc.contributor.authorAniol, K.
dc.contributor.authorBeise, E.J.
dc.contributor.authorBenmokhtar, F.
dc.contributor.authorBertozzi, W.
dc.contributor.authorBoeglin, W.U.
dc.contributor.authorBotto, T.
dc.contributor.authorBrash, E.J.
dc.contributor.authorBreuer, H.
dc.contributor.authorBrown, E.
dc.contributor.authorBurtin, E.
dc.contributor.authorCalarco, J.R.
dc.contributor.authorCavata, C.
dc.contributor.authorChang, C.C.
dc.contributor.authorChant, N.S.
dc.contributor.authorChen, J.-P.
dc.contributor.authorComan, M.
dc.contributor.authorCrovelli, D.
dc.contributor.authorDe Leo, R.
dc.contributor.authorDieterich, S.
dc.contributor.authorEscoffier, S.
dc.contributor.authorFissum, K.G.
dc.contributor.authorGarde, V.
dc.contributor.authorGaribaldi, F.
dc.contributor.authorGeorgakopoulus, S.
dc.contributor.authorGilad, S.
dc.contributor.authorGilman, R.
dc.contributor.authorGlashausser, C.
dc.contributor.authorHansen, J.-O.
dc.contributor.authorHiginbotham, D.W.
dc.contributor.authorHotta, A.
dc.contributor.authorHuber, G.M.
dc.contributor.authorIbrahim, H.
dc.contributor.authorIodice, M.
dc.contributor.authorde Jager, C.W.
dc.contributor.authorJiang, X.
dc.contributor.authorKlimenko, A.
dc.contributor.authorKozlov, A.
dc.contributor.authorKumbartzki, G.
dc.contributor.authorKuss, M.
dc.contributor.authorLagamba, L.
dc.contributor.authorLaveissiere, G.
dc.contributor.authorLeRose, J.J.
dc.contributor.authorLindgren, R.A.
dc.contributor.authorLiyanage, N.
dc.contributor.authorLolos, G.J.
dc.contributor.authorLourie, R.W.
dc.contributor.authorMargaziotis, D.J.
dc.contributor.authorMarie, F.
dc.contributor.authorMarkowitz, P.
dc.contributor.authorMcAleer, S.
dc.contributor.authorMeekins, D.
dc.contributor.authorMichaels, R.
dc.contributor.authorMilbrath, B.D.
dc.contributor.authorMitchell, J.
dc.contributor.authorNappa, J.
dc.contributor.authorNeyret, D.
dc.contributor.authorPerdrisat, C.F.
dc.contributor.authorPotokar, M.
dc.contributor.authorPunjabi, V.A.
dc.contributor.authorPussieux, T.
dc.contributor.authorRansome, R.D.
dc.contributor.authorRoos, P.G.
dc.contributor.authorRvachev, M.
dc.contributor.authorSaha, A.
dc.contributor.authorSirca, S.
dc.contributor.authorSuleiman, R.
dc.contributor.authorStrauch, S.
dc.contributor.authorTemplon, J.A.
dc.contributor.authorTodor, L.
dc.contributor.authorUlmer, P.E.
dc.contributor.authorUrciuoli, G.M.
dc.contributor.authorWeinstein, L.B.
dc.contributor.authorWijesooriya, K.
dc.contributor.authorWojtsekhowski, B.
dc.contributor.authorZheng, X.
dc.contributor.authorZhu, L.
dc.contributor.authorJefferson Laboratory E91011 and Hall A Collaborations
dc.date.accessioned2011-04-06T14:23:37Z
dc.date.available2011-04-06T14:23:37Z
dc.date.issued2005-09-02
dc.description.abstractWe measured angular distributions of recoil-polarization response functions for neutral pion electroproduction for W=1.23  GeV at Q2=1.0  (GeV/c)2, obtaining 14 separated response functions plus 2 Rosenbluth combinations; of these, 12 have been observed for the first time. Dynamical models do not describe quantities governed by imaginary parts of interference products well, indicating the need for adjusting magnitudes and phases for nonresonant amplitudes. We performed a nearly model-independent multipole analysis and obtained values for Re (S1+/M1+)=-(6.84±0.15)% and Re (E1+/M1+)=-(2.91±0.19)% that are distinctly different from those from the traditional Legendre analysis based upon M1+ dominance and ℓπ≤1 truncation.en_US
dc.identifier.citationKelly, J.J. et al. "Recoil Polarization for Δ Excitation in Pion Electroproduction." Physical Review Letters 95, no. 10 (2005): 102001(6).en_US
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/1903/11356
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© 2005 The American Physical Society.
dc.subjectrecoil polarizationen_US
dc.subjectpion electroproductionen_US
dc.titleRecoil Polarization for Δ Excitation in Pion Electroproductionen_US
dc.typeArticleen_US

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