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Measurement of pi(0) photoproduction on the proton at MAMI C

Adlarson, P. and Afzal, F. and Akondi, C. S. and Annand, J. R. M. and Arends, H. J. and Azimov, Ya. I. and Beck, R. and Borisov, N. and Braghieri, A. and Briscoe, W. J. and Cherepnya, S. and Cividini, F. and Collicott, C. and Costanza, S. and Denig, A. and Downie, E. J. and Dieterle, M. and Bondy, M. I. Ferretti and Fil`kov, L. V. and Fix, A. and Gardner, S. and Garni, S. and Glazier, D. I. and Glowa, D. and Gradl, W. and Gurevich, G. and Hamilton, D. J. and Hornidge, D. and Huber, G. M. and Kaeser, A. and Kashevarov, V. L. and Kay, S. and Keshelashvili, I. and Kondratiev, R. and Korolija, M. and Krusche, B. and Kulikov, V. V. and Lazarev, A. and Linturi, J. and Lisin, V. and Livingston, K. and MacGregor, I. J. D. and Manley, D. M. and Martel, P. P. and Martemianov, M. and McGeorge, J. C. and Meyer, W. and Middleton, D. G. and Miskimen, R. and Mushkarenkov, A. and Neganov, A. and Neiser, A. and Oberle, M. and Ostrick, M. and Ott, P. and Otte, P. B. and Oussena, B. and Paudyal, D. and Pedroni, P. and Polonski, A. and Polyanski, V. V. and Prakhov, S. and Rajabi, A. and Reicherz, G. and Ron, G. and Rostomyan, T. and Sarty, A. and Schott, D. M. and Schumann, S. and Sfienti, C. and Sokhoyan, V. and Spieker, K. and Steffen, O. and Strakovsky, I. I. and Strub, Th. and Supek, I. and Taragin, M. F. and Thiel, A. and Thiel, M. and Tiator, L. and Thomas, A. and Unverzagt, M. and Usov, Yu. A. and Wagner, S. and Watts, D. P. and Werthmueller, D. and Wettig, J. and Witthauer, L. and Wolfes, M. and Workman, R. L. and Zana, L. A.. (2015) Measurement of pi(0) photoproduction on the proton at MAMI C. Physical review C, 92 (2). 024617.

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Official URL: http://edoc.unibas.ch/40409/

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Abstract

Differential cross sections for the gamma p -> pi(0)p reaction have been measured with the A2 tagged-photon facilities at the Mainz Microtron, MAMI C, up to the center-of-mass energy W = 1.9 GeV. The new results, obtained with a fine energy and angular binning, increase the existing quantity of pi(0) photoproduction data by similar to 47%. Owing to the unprecedented statistical accuracy and the full angular coverage, the results are sensitive to high partial-wave amplitudes. This is demonstrated by the decomposition of the differential cross sections in terms of Legendre polynomials and by further comparison to model predictions. A new solution of the SAID partial-wave analysis obtained after adding the new data into the fit is presented.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Hadronenphysik (Krusche)
UniBasel Contributors:Krusche, Bernd
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:0556-2813
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:30 Jun 2016 11:01
Deposited On:09 May 2016 09:44

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