Measurement of the ω→π0e+e− and η→e+e−γ Dalitz decays with the A2 setup at MAMI

Show simple item record Adlarson, P. Afzal, F. Aguar-Bartolomé, P. Ahmed, Z. Annand, J. R. 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. I. V. Danilkin, Danilkin, I. V. 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. Lazarev, A. Linturi, James M. Lisin, V. Livingston, K. MacGregor, I. J. Macrae, R. Manley, D. M. Martel, P. P. McGeorge, J. C. McNicoll, E. F. Metag, V. Middleton, D. G. Miskimen, R. Mornacchi, E. Mullen, C. Mushkarenkov, A. 2018-03-13T08:12:24Z 2018-03-13T08:12:24Z 2017
dc.identifier.citation Phys.Rev. C95 (2017) no.3, 035208 (2017) en_US
dc.description DOI: 10.1103/PhysRevC.95.035208 en_US
dc.description.abstract The Dalitz decays η→e+e−γ and ω→π0e+e− have been measured in the γp→ηp and γp→ωp reactions, respectively, with the A2 tagged-photon facility at the Mainz Microtron. The value obtained for the slope parameter of the electromagnetic transition form factor of η, Λη−2=(1.97±0.11tot)GeV−2, is in good agreement with previous measurements of the η→e+e−γ and η→μ+μ−γ decays. The uncertainty obtained in the value of Λη−2 is lower than in previous results based on the η→e+e−γ decay. The value obtained for the ω slope parameter, Λωπ0−2=(1.99±0.21tot)GeV−2, is somewhat lower than previous measurements based on ω→π0μ+μ−, but the results for the ω transition form factor are in better agreement with theoretical calculations, compared to earlier experiments. en_US
dc.language.iso en en_US
dc.subject High Energy Physics - Experiment (hep-ex) en_US
dc.subject Nuclear Experiment (nucl-ex) en_US
dc.title Measurement of the ω→π0e+e− and η→e+e−γ Dalitz decays with the A2 setup at MAMI en_US
dc.type Article en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search Repository


My Account