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Polarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Proton

dc.contributor.authorFanelli, C.
dc.contributor.authorCisbani, E.
dc.contributor.authorHamilton, D. J.
dc.contributor.authorSalmé, G.
dc.contributor.authorWojtsekhowski, B.
dc.contributor.authorAhmidouch, A.
dc.contributor.authorAnnand, J. R. M.
dc.contributor.authorBaghdasaryan, H.
dc.contributor.authorBeaufait, J.
dc.contributor.authorBosted, P.
dc.contributor.authorBrash, E. J.
dc.contributor.authorButuceanu, C.
dc.contributor.authorCarter, P.
dc.contributor.authorChristy, E.
dc.contributor.authorChudakov, E.
dc.contributor.authorDanagoulian, S.
dc.contributor.authorDay, D.
dc.contributor.authorDegtyarenko, P.
dc.contributor.authorEnt, R.
dc.contributor.authorFenker, H.
dc.contributor.authorFowler, M.
dc.contributor.authorFrlez, E.
dc.contributor.authorGaskell, D.
dc.contributor.authorGilman, R.
dc.contributor.authorHorn, T.
dc.contributor.authorHuber, G. M.
dc.contributor.authorde Jager, C. W.
dc.contributor.authorJensen, E.
dc.contributor.authorJones, M. K.
dc.contributor.authorKelleher, A.
dc.contributor.authorKeppel, C. E.
dc.contributor.authorKhandaker, M.
dc.contributor.authorKohl, Michael
dc.contributor.authorKumbartzki, G.
dc.contributor.authorLassiter, S.
dc.contributor.authorLi, Y.
dc.contributor.authorLindgren, R.
dc.contributor.authorLovelace, H.
dc.contributor.authorLuo, W.
dc.contributor.authorMack, D. J.
dc.contributor.authorMamyan, V.
dc.contributor.authorMargaziotis, D. J.
dc.contributor.authorMarkowitz, P.
dc.contributor.authorMaxwell, J.
dc.contributor.authorMbianda, G.
dc.contributor.authorMeekins, D.
dc.contributor.authorMeziane, M.
dc.contributor.authorMiller, J.
dc.contributor.authorMkrtchyan, A.
dc.contributor.authorMkrtchyan, H.
dc.contributor.authorMulholland, J.
dc.contributor.authorNelyubin, V.
dc.contributor.authorPentchev, L.
dc.contributor.authorPerdrisat, C. F.
dc.contributor.authorPiasetzky, E.
dc.contributor.authorProk, Y.
dc.contributor.authorPunjabi, V.
dc.contributor.authorShabestari, M.
dc.contributor.authorShahinyan, A.
dc.contributor.authorSlifer, K.
dc.contributor.authorSmith, G.
dc.contributor.authorSolvignon, P.
dc.contributor.authorSubedi, R.
dc.contributor.authorWesselmann, F. R.
dc.contributor.authorWood, S.
dc.contributor.authorYe, Z.
dc.contributor.authorZheng, X.
dc.contributor.authorPuckett, Andrew J. R.
dc.date.accessioned2015-10-07T16:48:50Z
dc.date.available2015-10-07T16:48:50Z
dc.date.issued2015-10
dc.date.submitted2015-06
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/1721.1/99191
dc.description.abstractWide-angle exclusive Compton scattering and single-pion photoproduction from the proton have been investigated via measurement of the polarization transfer from a circularly polarized photon beam to the recoil proton. The wide-angle Compton scattering polarization transfer was analyzed at an incident photon energy of 3.7 GeV at a proton scattering angle of θ[p over cm] = 70°. The longitudinal transfer K[subscript LL], measured to be 0.645 ± 0.059 ± 0.048, where the first error is statistical and the second is systematic, has the same sign as predicted for the reaction mechanism in which the photon interacts with a single quark carrying the spin of the proton. However, the observed value is ~3 times larger than predicted by the generalized-parton-distribution-based calculations, which indicates a significant unknown contribution to the scattering amplitude.en_US
dc.description.sponsorshipNational Science Foundation (U.S.)en_US
dc.description.sponsorshipUnited States. Dept. of Energy (Contract DE-AC05-84ER40150 Modification M175)en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.115.152001en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titlePolarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Protonen_US
dc.typeArticleen_US
dc.identifier.citationFanelli, C., et al. "Polarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Proton." Phys. Rev. Lett. 115, 152001 (October 2015). © 2015 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.mitauthorPuckett, Andrew J. R.en_US
dc.relation.journalPhysical Review Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2015-10-06T22:00:04Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.orderedauthorsFanelli, C.; Cisbani, E.; Hamilton, D. J.; Salmé, G.; Wojtsekhowski, B.; Ahmidouch, A.; Annand, J. R. M.; Baghdasaryan, H.; Beaufait, J.; Bosted, P.; Brash, E. J.; Butuceanu, C.; Carter, P.; Christy, E.; Chudakov, E.; Danagoulian, S.; Day, D.; Degtyarenko, P.; Ent, R.; Fenker, H.; Fowler, M.; Frlez, E.; Gaskell, D.; Gilman, R.; Horn, T.; Huber, G. M.; de Jager, C. W.; Jensen, E.; Jones, M. K.; Kelleher, A.; Keppel, C.; Khandaker, M.; Kohl, M.; Kumbartzki, G.; Lassiter, S.; Li, Y.; Lindgren, R.; Lovelace, H.; Luo, W.; Mack, D.; Mamyan, V.; Margaziotis, D. J.; Markowitz, P.; Maxwell, J.; Mbianda, G.; Meekins, D.; Meziane, M.; Miller, J.; Mkrtchyan, A.; Mkrtchyan, H.; Mulholland, J.; Nelyubin, V.; Pentchev, L.; Perdrisat, C. F.; Piasetzky, E.; Prok, Y.; Puckett, A. J. R.; Punjabi, V.; Shabestari, M.; Shahinyan, A.; Slifer, K.; Smith, G.; Solvignon, P.; Subedi, R.; Wesselmann, F. R.; Wood, S.; Ye, Z.; Zheng, X.en_US
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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