Measurement of the π0→e+e−γ Dalitz decay at the Mainz Microtron
- Adlarson, P.
- Afzal, F.
- Aguar-Bartolome, P.
- Ahmed, Z.
- Akondi, C. S.
- Annand, J. R. M.
- Arends, H. J.
- Bantawa, K.
- Beck, R.
- Berghaeuser, 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.
- Bondy, M. I. Ferretti
- 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.
- Kaeser, 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, Th.
- Supek, I.
- Thiel, A.
- Thiel, M.
- Thomas, A.
- Unverzagt, M.
- Usov, Yu. A.
- Wagner, S.
- Walford, N.
- Watts, D. P.
- Werthmueller, D.
- Wettig, J.
- Witthauer, L.
- Wolfes, M.
- Zana, L. A.
Publication date
January 2017
DOI Publisher
American Physical Society (APS) ISSN
2469-9985Abstract
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
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