Measurement of the H1(γ, p→)π0 reaction using a novel nucleon spin polarimeter

Sikora, M.H. et al. (2014) Measurement of the H1(γ, p→)π0 reaction using a novel nucleon spin polarimeter. Physical Review Letters, 112(2), 022501. (doi:10.1103/PhysRevLett.112.022501)

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Abstract

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 H1(γ→, p⃗)π0 in the range 0.4<Eγ<1.4  GeV validates the technique and provides essential new data to constrain the excitation spectrum of the nucleon.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McKinnon, Dr Bryan and Middleton, Mr Duncan and Livingston, Dr Kenneth and Codling, Mr Richard and Howdle, Mr David and McNicoll, Miss Eilidh and Glazier, Dr Derek and McGeorge, Dr John and Robinson, Mr Jamie and Downie, Dr Evangeline and MacGregor, Professor I and Annand, Dr John and Hamilton, Dr David and Rosner, Professor Guenther
Authors: Sikora, M.H., Watts, D.P., Glazier, D.I., Aguar-Bartolome, P., Akasoy, L.K., Annand, J.R.M., Arends, H.J., Bantawa, K., Beck, R., Bekrenev, V.S., Berghauser, H., Braghieri, A., Branford, D., Briscoe, W.J., Brudvik, J., Cherepnya, S., Codling, R.F.B., Demissie, B.T., Downie, E.J., Drexler, P., Fil'kov, L.V., Freehart, B., Gregor, R., Hamilton, D., Heid, E., Hornidge, D., Howdle, D.A., Jaegle, I., Jahn, O., Jude, T.C., Kashevarov, V.L., Keshelashvili, I., Kondratiev, R., Korolija, M., Kotulla, M., Koulbardis, A.A., Kruglov, S.P., Krusche, B., Lisin, V., Livingston, K., MacGregor, I.J.D., Maghrbi, Y., Manley, D.M., Marinides, Z., Martinez, M., McGeorge, J.C., McKinnon, B., McNicoll, E.F., Mekterovic, D., Metag, V., Micanovic, S., Middleton, D.G., Mushkarenkov, A., Nefkens, B.M.K., Nikolaev, A., Novotny, R., Ostrick, M., Otte, P.B., Oussena, B., Pedroni, P., Pheron, F., Polonski, A., Prakov, S., Robinson, J., Rosner, G., Rostomyan, T., Schumann, S., Sober, D.I., Starostin, A., Strakovsky, I.I., Suarez, I.M., Supek, I., Thiel, M., Thomas, A., Unversagt, M., Werthmueller, D., Workman, R.L., Zamboni, I., and Zehr, F.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Group:Nuclear Physics
Journal Name:Physical Review Letters
Journal Abbr.:Phys. Rev. Lett.
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114
Copyright Holders:Copyright © 2014 American Physical Society
First Published:First published in Physical Review Letters 112(2):022501
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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