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Longitudinal Electroproduction of Charged Pions from 1H, 2H, and 3He

dc.contributor.authorGaskell, D.
dc.contributor.authorAhmidouch, A.
dc.contributor.authorAmbrozewicz, P.
dc.contributor.authorAnklin, H.
dc.contributor.authorArrington, J.
dc.contributor.authorAssamagan, K.
dc.contributor.authorAvery, S.
dc.contributor.authorBailey, K.
dc.contributor.authorBaker, O.K.
dc.contributor.authorBeedoe, S.
dc.contributor.authorBeise, B.
dc.contributor.authorBreuer, H.
dc.contributor.authorBrown, D.S.
dc.contributor.authorCarlini, R.
dc.contributor.authorCha, J.
dc.contributor.authorChant, N.
dc.contributor.authorCowley, A.
dc.contributor.authorDanagoulian, S.
dc.contributor.authorDeSchepper, D.
dc.contributor.authorDunne, J.
dc.contributor.authorDutta, D.
dc.contributor.authorEnt, R.
dc.contributor.authorGan, L.
dc.contributor.authorGasparian, A.
dc.contributor.authorGeesaman, D.F.
dc.contributor.authorGilman, R.
dc.contributor.authorGlashausser, C.
dc.contributor.authorGueye, P.
dc.contributor.authorHarvey, M.
dc.contributor.authorHashimoto, O.
dc.contributor.authorHinton, W.
dc.contributor.authorHofman, G.
dc.contributor.authorJackson, C.
dc.contributor.authorJackson, H.E.
dc.contributor.authorKeppel, C.
dc.contributor.authorKinney, E.
dc.contributor.authorKoltenuk, D.
dc.contributor.authorKyle, G.
dc.contributor.authorLung, A.
dc.contributor.authorMack, D.
dc.contributor.authorMcKee, D.
dc.contributor.authorMitchell, J.
dc.contributor.authorMkrtchyan, H.
dc.contributor.authorMueller, B.
dc.contributor.authorNiculescu, G.
dc.contributor.authorNiculescu, I.
dc.contributor.authorO'Neill, T.G.
dc.contributor.authorPapavassiliou, V.
dc.contributor.authorPotterveld, D.
dc.contributor.authorReinhold, J.
dc.contributor.authorRoos, P.
dc.contributor.authorSawafta, R.
dc.contributor.authorSegel, R.
dc.contributor.authorStepanyan, S.
dc.contributor.authorTadevosyan, V.
dc.contributor.authorTakahashi, T.
dc.contributor.authorTang, L.
dc.contributor.authorTerburg, B.
dc.contributor.authorvan Westrum, D.
dc.contributor.authorVolmer, J.
dc.contributor.authorWelch, T.P.
dc.contributor.authorWood, S.
dc.contributor.authorYuan, L.
dc.contributor.authorZeidman, B.
dc.contributor.authorZihlmann, B.
dc.identifier.citationGaskell, D. et al. "Longitudinal Electroproduction of Charged Pions from 1H, 2H, and 3He." Physical Review Letters 87, no. 20 (2001): 202301en_US
dc.description.abstractSeparated longitudinal and transverse cross sections for charged pion electroproduction from 1H, 2H, and 3He were measured at Q2 = 0.4(GeV/c)2 for two values of the invariant mass, W = 1.15GeV and W = 1.60GeV, in a search for a mass dependence which would signal the effect of nuclear pions. This is the first such study that includes recoil momenta significantly above the Fermi surface. The longitudinal cross section, if dominated by the pion-pole process, should be sensitive to nuclear pion currents. Comparisons of the longitudinal cross section target ratios to a quasifree calculation reveal a significant suppression in 3He at W = 1.60GeV. The W = 1.15GeV results are consistent with simple estimates of the effect of nuclear pion currents, but are also consistent with pure quasifree production.en_US
dc.description.sponsorshipNational Science Foundation, U.S. Department of Energyen_US
dc.publisherAmerican Physical Societyen_US
dc.titleLongitudinal Electroproduction of Charged Pions from 1H, 2H, and 3Heen_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© 2001 The American Physical Society

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