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dc.creatorSenderovich, I
dc.creatorMorrison, BT
dc.creatorDugger, M
dc.creatorRitchie, BG
dc.creatorPasyuk, E
dc.creatorTucker, R
dc.creatorBrock, J
dc.creatorCarlin, C
dc.creatorKeith, CD
dc.creatorMeekins, DG
dc.creatorSeely, ML
dc.creatorRönchen, D
dc.creatorDöring, M
dc.creatorCollins, P
dc.creatorAdhikari, KP
dc.creatorAdikaram, D
dc.creatorAkbar, Z
dc.creatorAnderson, MD
dc.creatorAnefalos Pereira, S
dc.creatorBadui, RA
dc.creatorBall, J
dc.creatorBaltzell, NA
dc.creatorBattaglieri, M
dc.creatorBatourine, V
dc.creatorBedlinskiy, I
dc.creatorBiselli, AS
dc.creatorBoiarinov, S
dc.creatorBriscoe, WJ
dc.creatorBrooks, WK
dc.creatorBurkert, VD
dc.creatorCarman, DS
dc.creatorCelentano, A
dc.creatorChandavar, S
dc.creatorCharles, G
dc.creatorColaneri, L
dc.creatorCole, PL
dc.creatorContalbrigo, M
dc.creatorCortes, O
dc.creatorCredé, V
dc.creatorD'Angelo, A
dc.creatorDashyan, N
dc.creatorDe Vita, R
dc.creatorDe Sanctis, E
dc.creatorDeur, A
dc.creatorDjalali, C
dc.creatorDupre, R
dc.creatorEgiyan, H
dc.creatorEl Alaoui, A
dc.creatorEl Fassi, L
dc.creatorElouadrhiri, L
dc.creatorEugenio, P
dc.creatorFedotov, G
dc.creatorFegan, S
dc.creatorFilippi, A
dc.creatorFleming, JA
dc.creatorFradi, A
dc.creatorGarillon, B
dc.creatorGhandilyan, Y
dc.creatorGilfoyle, GP
dc.creatorGiovanetti, KL
dc.creatorGirod, FX
dc.creatorGlazier, DI
dc.creatorGoetz, JT
dc.creatorGohn, W
dc.creatorGolovatch, E
dc.creatorGothe, RW
dc.creatorGriffioen, KA
dc.creatorGuidal, M
dc.creatorGuo, L
dc.creatorHafidi, K
dc.creatorHakobyan, H
dc.creatorHanretty, C
dc.creatorHattawy, M
dc.creatorHicks, K
dc.creatorHo, D
dc.creatorHoltrop, M
dc.creatorHughes, SM
dc.creatorIlieva, Y
dc.creatorIreland, DG
dc.creatorIshkhanov, BS
dc.creatorJenkins, D
dc.creatorJiang, H
dc.creatorJo, HS
dc.creatorJoo, K
dc.creatorJoosten, S
dc.creatorKeller, D
dc.creatorKhachatryan, G
dc.creatorKhandaker, M
dc.creatorKim, A
dc.creatorKlein, FJ
dc.creatorKubarovsky, V
dc.creatorKunkel, MC
dc.creatorLenisa, P
dc.creatorLivingston, K
dc.creatorLu, HY
dc.creatorMacGregor, IJD
dc.creatorMattione, P
dc.creatorMcKinnon, B
dc.creatorMeyer, CA
dc.creatorMineeva, T
dc.identifier.otherDI5VH (isidoc)
dc.description.abstract© 2016 Results are presented for the first measurement of the double-polarization helicity asymmetry E for the η photoproduction reaction γp→ηp. Data were obtained using the FROzen Spin Target (FROST) with the CLAS spectrometer in Hall B at Jefferson Lab, covering a range of center-of-mass energy W from threshold to 2.15 GeV and a large range in center-of-mass polar angle. As an initial application of these data, the results have been incorporated into the Jülich–Bonn model to examine the case for the existence of a narrow N⁎ resonance between 1.66 and 1.70 GeV. The addition of these data to the world database results in marked changes in the predictions for the E observable from that model. Further comparison with several theoretical approaches indicates these data will significantly enhance our understanding of nucleon resonances.
dc.relation.haspartPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.relation.isreferencedbyElsevier BV
dc.subjectEta photoproduction
dc.subjectPolarization observable
dc.subjectHelicity asymmetry
dc.titleFirst measurement of the helicity asymmetry E in η photoproduction on the proton
dc.type.genreJournal Article
dc.ada.noteFor Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact

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