Annand, J.R.M. et al. (2016) T and F asymmetries in π0 photoproduction on the proton. Physical Review C, 93(5), 055209. (doi: 10.1103/PhysRevC.93.055209)
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Abstract
The γp→π0p reaction was studied at laboratory photon energies from 425 to 1445 MeV with a transversely polarized target and a longitudinally polarized beam. The beam-target asymmetry F was measured for the first time and new high precision data for the target asymmetry T were obtained. The experiment was performed at the photon tagging facility of the Mainz Microtron (MAMI) using the Crystal Ball and TAPS photon spectrometers. The polarized cross sections were expanded in terms of associated Legendre functions and compared to recent predictions from several partial-wave analyses. The impact of the new data on our understanding of the underlying partial-wave amplitudes and baryon resonance contributions is discussed.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Glazier, Dr Derek and MacGregor, Professor Douglas and Livingston, Dr Kenneth and Annand, Dr John and Hamilton, Dr David |
Authors: | Annand, J.R.M., Arends, H.J., Beck, R., Borisov, N., Braghieri, A., Briscoe, W.J., Cherepnya, S., Collicott, C., Costanza, S., Downie, E.J., Dieterle, M., Fix, A., Fil'kov, L.V., Garni, S., Glazier, D.I., Gradl, W., Gurevich, G., Hall Barrientos, P., Hamilton, D., Hornidge, D., Howdle, D., Huber, G.M., Kashevarov, V.L., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A., Lisin, V., Livingston, K., MacGregor, I.J.D., Mancel, J., Manley, D.M., Martel, P.P., McNicoll, E.F., Meyer, W., Middleton, D.G., Miskimen, R., Mushkarenkov, A., Neganov, A., Nikolaev, A., Oberle, M., Ortega, H., Ostrick, M., Ott, P., Otte, P.B., Oussena, B., Pedroni, P., Polonski, A., Polyanski, V.V., Prakhov, S., Reicherz, G., Rostomyan, T., Sarty, A., Schumann, S., Steffen, O., Strakovsky, I.I., Strub, T., Supek, I., Tiator, L., Thomas, A., Unverzagt, M., Usov, Y.A., Watts, D.P., Werthmüller, D., Witthauer, L., and Wolfes, M. |
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 C |
Publisher: | American Physical Society |
ISSN: | 0556-2813 |
ISSN (Online): | 1089-490X |
Copyright Holders: | Copyright © 2016 American Physical Society |
First Published: | First published in Physical Review C 93(5): 055209 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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