Measurement of the π0→e+e−γ Dalitz decay at the Mainz Microtron

Adlarson, P. et al. (2017) Measurement of the π0→e+e−γ Dalitz decay at the Mainz Microtron. Physical Review C, 95(2), 025202. (doi:10.1103/PhysRevC.95.025202)

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Abstract

The Dalitz decay π0 → e+e−γ has been measured in the γp → π0p reaction with the A2 tagged-photon facility at the Mainz Microtron, MAMI. The value obtained for the slope parameter of the π0 electromagnetic transition form factor, aπ = 0.030 ± 0.010tot, is in agreement with existing measurements of this decay and with recent theoretical calculations. The uncertainty obtained in the value of aπ is lower than in previous results based on the π0 → e+e−γ decay.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Strandberg, Mr Bruno and Glazier, Dr Derek and McGeorge, Dr John and Robinson, Mr Jamie and Werthmueller, Dr Dominik and MacGregor, Professor I and Livingston, Dr Kenneth and Gardner, Mr Simon and Mullen, Mr Christopher and Macrae, Mr Roddy and Annand, Dr John and Hamilton, Dr David and Rosner, Professor Guenther
Authors: Adlarson, P., Afzal, F., Aguar-Bartolomé, P., Ahmed, Z., Akondi, C.S., Annand, J.R.M., Arends, H. J., Bantawa, K., Beck, R., Berghäuser, H., Biroth, M., Borisov, N.S., Braghieri, A., Briscoe, W.J., Cherepnya, S., Cividini, F., Collicott, C., Costanza, S., Denig, A., Dieterle, M., Downie, E.J., Drexler, P., Ferretti Bondy, M.I., Fil'kov, L.V., Gardner, S., Garni, S., Glazier, D.I., Glowa, D., Gradl, W., Gurevich, G.M., Hamilton, D.J., Hornidge, D., Huber, G.M., Jude, T.C., Käser, A., Kashevarov, V.L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Kulikov, V.V., Lazarev, A., Linturi, J., Lisin, V., Livingston, K., MacGregor, I.J.D., Macrae, R., Manley, D.M., Martel, P.P., Martemianov, M., McGeorge, J.C., McNicoll, E.F., Metag, V., Middleton, D.G., Miskimen, R., Mornacchi, E., Mullen, C., Mushkarenkov, A., Neganov, A., Neiser, A., Nikolaev, A., Oberle, M., Ostrick, M., Ott, P., Otte, P.B., Paudyal, D., Pedroni, P., Polonski, A., Prakhov, S., Rajabi, A., Robinson, J., Ron, G., Rosner, G., Rostomyan, T., Sfienti, C., Sikora, M.H., Sokhoyan, V., Spieker, K., Steffen, O., Strakovsky, I.I., Strandberg, B., Strub, T., Supek, I., Thiel, A., Thiel, M., Thomas, A., Unverzagt, M., Usov, Y.A., Wagner, S., Walford, N., Watts, D.P., Werthmüller, D., Wettig, J., Witthauer, L., Wolfes, M., and Zana, L.A.
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:2469-9985
ISSN (Online):2469-9993
Copyright Holders:Copyright © 2017 American Physical Society
First Published:First published in Physical Review C 95(2): 025202
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
570711Nuclear Physics GroupDavid IrelandScience & Technologies Facilities Council (STFC)ST/J000175/1P&A - PHYSICS & ASTRONOMY
507271Illuminating strongly interacting matterI MacgregorScience & Technologies Facilities Council (STFC)ST/G008604/1P&A - PHYSICS & ASTRONOMY