6533b85dfe1ef96bd12bdd01
RESEARCH PRODUCT
Measurement of theH1(γ⃗, p⃗)π0Reaction Using a Novel Nucleon Spin Polarimeter
K. LivingstonT. C. JudeB. KruscheYasser MaghrbiD. G. MiddletonVolker MetagB. MckinnonR. F. B. CodlingE. F. McnicollD. BranfordV. LisinI. JaegleD. I. SoberR. KondratievH. J. ArendsB. OussenaP. PedroniJason BrudvikJ. RobinsonD. WerthmüllerO. JahnI. SupekI. J. D. MacgregorF. PheronSasa MicanovicS. SchumannR. W. NovotnyRon L. WorkmanP. B. OtteV. L. KashevarovA. StarostinP. Aguar-bartoloméM. H. SikoraA. PolonskiD. P. WattsD. MekterovicM. OstrickZ. MarinidesD. I. GlazierD. HowdleA. KoulbardisD. M. ManleyI. M. SuarezM. KorolijaF. ZehrK. BantawaM. ThielM. KotullaS. P. KruglovV. S. BekrenevA. BraghieriJ. C. McgeorgeG. RosnerT. RostomyanL. V. Fil'kovH. BerghäuserS. N. PrakhovDavid HamiltonI. KeshelashviliM. MartinezAndy ThomasB. DemissieS. CherepnyaP. DrexlerR. GregorJ. R. M. AnnandA. NikolaevB. M. K. NefkensI. I. StrakovskyE. HeidM. UnverzagtD. HornidgeB. FreehartI. ZamboniR. BeckL. K. AkasoyW. J. BriscoeA. N. MushkarenkovE. J. Downiesubject
PhysicsParticle physicsMeson productionPartial wave analysisNuclear TheoryGeneral Physics and AstronomyPolarimeterPolarization (waves)7. Clean energyNuclear physicsHadron physicsPhoton beamNuclear ExperimentNucleonExcitationdescription
We report the first large-acceptance measurement of polarization transfer from a polarized photon beam to a recoiling nucleon. The measurement pioneers a novel polarimetry technique, which can be applied to many other nuclear and hadron physics experiments. The commissioning reaction of $^{1}H(\mathrm{\ensuremath{\gamma}P\vec},\text{ }\mathrm{pP\vec}){\ensuremath{\pi}}^{0}$ in the range $0.4l{E}_{\ensuremath{\gamma}}l1.4\text{ }\text{ }\mathrm{GeV}$ validates the technique and provides essential new data to constrain the excitation spectrum of the nucleon.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-01-15 | Physical Review Letters |