Photon asymmetry measurements of γ→p→π0p for Eγ=320−650 MeV

Gardner, S.; Howdle, D.; Sikora, M. H.; Wunderlich, Y.; Abt, S.; Achenbach, P.; Afzal, F.; Aguar-Bartolome, P.; Ahmed, Z.; Annand, J. R.; Arends, H. J.; Bantawa, K.; Bashkanov,  M.; Beck, R.; Biroth, M.; Borisov,  N. S.; Braghieri, A.; Briscoe, W. J.; Cherepnya,  S.; Cividini, F.; Costanza,  S.; Collicott, C.; Demissie, B. T.; Denig,  A.; Dieterle, M.; Downie, E. J.; Drexler, P.; Ferretti-Bondy, M. I.; Filkov, L. V.; Glazier,  D. I.; Garni, S.; Gradl, W.; G¨unther, M.; Gurevich, G. M.; Hall Barrientos, P.; Hamilton, D.; Heid,  E.; Hornidge, D.; Huber, G. M.; Jahn, O.; Jude, T. C.; K¨aser, A.; Kay, S.; Kashevarov, V. L.; Keshelashvili, I.; Kondratiev,  R.; Korolija, M.; Krusche, B.; Linturi, James M.; Lisin, V.; Livingston, K.; Lutterer, S.; MacGregor, J. D.; Macrae, R.; Mancell, J.; Manley, D. M.; Martel, P. P.; McGeorge,  J. C.; McNicoll,  E. F.; Middleton, D. G.; Miskimen, R.; Mullen, C.; Mushkarenkov, A.; Neganov, A. B.; Neiser, A.; Nikolaev,  A.; Oberle, M.; Ostrick, M.; Owens, R. O.; Otte, P. B.; Oussena, B.; Paudyal, D.; Pedroni,  P.; Polonski, A.; Prakhov, S.; Rajabi, A.; Robinson, J.; Rosner, G.; Rostomyanm,T.; Sarty,  A.; Schumann, S.; Sokhoyan, V.; Spieker, K.; Steffen, O.; Sfienti, C.; Strakovsky,  I. I.; Strandberg, B.; Strub, T.; Supek, I.; Tarbert,  C. M.; Thiel, A.; Thiel, M.; Thomas,  A.; Unverzagt, M.; Usov, Yu. A.; Watts, D. P.; Werthm¨uller,  D.; Wettig,  J.; Wolfes,  M.; Witthauer, L.; Zana,  L.

dc.contributor.author	Gardner, S.
dc.contributor.author	Howdle, D.
dc.contributor.author	Sikora, M. H.
dc.contributor.author	Wunderlich, Y.
dc.contributor.author	Abt, S.
dc.contributor.author	Achenbach, P.
dc.contributor.author	Afzal, F.
dc.contributor.author	Aguar-Bartolome, P.
dc.contributor.author	Ahmed, Z.
dc.contributor.author	Annand, J. R.
dc.contributor.author	Arends, H. J.
dc.contributor.author	Bantawa, K.
dc.contributor.author	Bashkanov, M.
dc.contributor.author	Beck, R.
dc.contributor.author	Biroth, M.
dc.contributor.author	Borisov, N. S.
dc.contributor.author	Braghieri, A.
dc.contributor.author	Briscoe, W. J.
dc.contributor.author	Cherepnya, S.
dc.contributor.author	Cividini, F.
dc.contributor.author	Costanza, S.
dc.contributor.author	Collicott, C.
dc.contributor.author	Demissie, B. T.
dc.contributor.author	Denig, A.
dc.contributor.author	Dieterle, M.
dc.contributor.author	Downie, E. J.
dc.contributor.author	Drexler, P.
dc.contributor.author	Ferretti-Bondy, M. I.
dc.contributor.author	Filkov, L. V.
dc.contributor.author	Glazier, D. I.
dc.contributor.author	Garni, S.
dc.contributor.author	Gradl, W.
dc.contributor.author	G¨unther, M.
dc.contributor.author	Gurevich, G. M.
dc.contributor.author	Hall Barrientos, P.
dc.contributor.author	Hamilton, D.
dc.contributor.author	Heid, E.
dc.contributor.author	Hornidge, D.
dc.contributor.author	Huber, G. M.
dc.contributor.author	Jahn, O.
dc.contributor.author	Jude, T. C.
dc.contributor.author	K¨aser, A.
dc.contributor.author	Kay, S.
dc.contributor.author	Kashevarov, V. L.
dc.contributor.author	Keshelashvili, I.
dc.contributor.author	Kondratiev, R.
dc.contributor.author	Korolija, M.
dc.contributor.author	Krusche, B.
dc.contributor.author	Linturi, James M.
dc.contributor.author	Lisin, V.
dc.contributor.author	Livingston, K.
dc.contributor.author	Lutterer, S.
dc.contributor.author	MacGregor, J. D.
dc.contributor.author	Macrae, R.
dc.contributor.author	Mancell, J.
dc.contributor.author	Manley, D. M.
dc.contributor.author	Martel, P. P.
dc.contributor.author	McGeorge, J. C.
dc.contributor.author	McNicoll, E. F.
dc.contributor.author	Middleton, D. G.
dc.contributor.author	Miskimen, R.
dc.contributor.author	Mullen, C.
dc.contributor.author	Mushkarenkov, A.
dc.contributor.author	Neganov, A. B.
dc.contributor.author	Neiser, A.
dc.contributor.author	Nikolaev, A.
dc.contributor.author	Oberle, M.
dc.contributor.author	Ostrick, M.
dc.contributor.author	Owens, R. O.
dc.contributor.author	Otte, P. B.
dc.contributor.author	Oussena, B.
dc.contributor.author	Paudyal, D.
dc.contributor.author	Pedroni, P.
dc.contributor.author	Polonski, A.
dc.contributor.author	Prakhov, S.
dc.contributor.author	Rajabi, A.
dc.contributor.author	Robinson, J.
dc.contributor.author	Rosner, G.
dc.contributor.author	Rostomyanm,T.
dc.contributor.author	Sarty, A.
dc.contributor.author	Schumann, S.
dc.contributor.author	Sokhoyan, V.
dc.contributor.author	Spieker, K.
dc.contributor.author	Steffen, O.
dc.contributor.author	Sfienti, C.
dc.contributor.author	Strakovsky, I. I.
dc.contributor.author	Strandberg, B.
dc.contributor.author	Strub, T.
dc.contributor.author	Supek, I.
dc.contributor.author	Tarbert, C. M.
dc.contributor.author	Thiel, A.
dc.contributor.author	Thiel, M.
dc.contributor.author	Thomas, A.
dc.contributor.author	Unverzagt, M.
dc.contributor.author	Usov, Yu. A.
dc.contributor.author	Watts, D. P.
dc.contributor.author	Werthm¨uller, D.
dc.contributor.author	Wettig, J.
dc.contributor.author	Wolfes, M.
dc.contributor.author	Witthauer, L.
dc.contributor.author	Zana, L.
dc.date.accessioned	2018-03-12T06:50:58Z
dc.date.available	2018-03-12T06:50:58Z
dc.date.issued	2016
dc.identifier.citation	The European physical journal, (2016) 52: 333	en_US
dc.identifier.uri	http://eprints.gla.ac.uk/131163/1/131163.pdf
dc.identifier.uri	http://repository.seku.ac.ke/handle/123456789/3874
dc.description	DOI 10.1140/epja/i2016-16333-5	en_US
dc.description.abstract	High-statistics measurements of the photon asymmetry Σ for the γp → π0p reaction have been made in the center-of-mass energy range W = 1214–1450 MeV. The data were measured with the MAMI A2 real photon beam and Crystal Ball/TAPS detector systems in Mainz, Germany. The results significantly improve the existing world data and are shown to be in good agreement with previous measurements, and with the MAID, SAID, and Bonn-Gatchina predictions. We have also combined the photon asymmetry results with recent cross-section measurements from Mainz to calculate the profile functions, Σˇ (= σ0Σ), and perform a moment analysis. Comparison with calculations from the Bonn-Gatchina model shows that the precision of the data is good enough to further constrain the higher partial waves, and there is an indication of interference between the very small F-waves and the N(1520)3/2− and N(1535)1/2− resonances.
dc.language.iso	en	en_US
dc.title	Photon asymmetry measurements of γ→p→π0p for Eγ=320−650 MeV	en_US
dc.type	Article	en_US