Measurement of the omega -> pi^0 e^+e^- and eta -> e^+e^-g Dalitz decays with the A2 setup at MAMI

Adlarson, P.; Afzal, F.; 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.; Danilkin, I. V.; Denig,  A.; Dieterle, M.; Downie, E. J.; Drexler,  P.; Ferretti Bondy,  M. I.; Fil'kov,  L. V.; 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.; 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.; Werthmüller,  D.; Wettig, J.; Witthauer,  L.; Wolfes, M.; Zana, L. A.

dc.contributor.author	Adlarson, P.
dc.contributor.author	Afzal, F.
dc.contributor.author	Afzal, F.
dc.contributor.author	Aguar-Bartolomé, 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	Beck, R.
dc.contributor.author	Berghäuser, H.
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	Collicott, C.
dc.contributor.author	Costanza, S.
dc.contributor.author	Danilkin, I. V.
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	Fil'kov, L. V.
dc.contributor.author	Fil'kov, L. V.
dc.contributor.author	Gardner, S.
dc.contributor.author	Garni, S.
dc.contributor.author	Glazier, D. I.
dc.contributor.author	Glowa, D.
dc.contributor.author	Gradl, W.
dc.contributor.author	Gurevich, G. M.
dc.contributor.author	Hamilton, D. J.
dc.contributor.author	Hornidge, D.
dc.contributor.author	Huber, G. M.
dc.contributor.author	Jude, T. C.
dc.contributor.author	Käser, A.
dc.contributor.author	Kashevarov, V. L.
dc.contributor.author	Kay, S.
dc.contributor.author	Keshelashvili, I.
dc.contributor.author	Kondratiev, R.
dc.contributor.author	Korolija, M.
dc.contributor.author	Krusche, B.
dc.contributor.author	Lazarev,, A.
dc.contributor.author	Linturi, James M.
dc.contributor.author	Lisin, V.
dc.contributor.author	Livingston, K.
dc.contributor.author	MacGregor, I. J.
dc.contributor.author	Macrae, R.
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	Metag, V.
dc.contributor.author	Middleton, D. G.
dc.contributor.author	Miskimen, R.
dc.contributor.author	Mornacchi, E.
dc.contributor.author	Mullen, C.
dc.contributor.author	Mushkarenkov, A.
dc.contributor.author	Neganov, A.
dc.contributor.author	Neiser, A.
dc.contributor.author	Nikolaev, A.
dc.contributor.author	Oberle, M.
dc.contributor.author	Ostrick, M.
dc.contributor.author	Ott, P.
dc.contributor.author	Otte, P. 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	Ron, G.
dc.contributor.author	Rosner, G.
dc.contributor.author	Rostomyan, T.
dc.contributor.author	Sfienti, C.
dc.contributor.author	Sikora, M. H.
dc.contributor.author	Sokhoyan, V.
dc.contributor.author	Spieker, K.
dc.contributor.author	Steffen, O.
dc.contributor.author	Strakovsky, I. I.
dc.contributor.author	Strandberg, B.
dc.contributor.author	Strub, Th.
dc.contributor.author	Supek, I.
dc.contributor.author	Thiel, A.
dc.contributor.author	Thiel, M.
dc.contributor.author
dc.contributor.author	Thomas, A.
dc.contributor.author	Unverzagt, M.
dc.contributor.author	Usov, Yu. A.
dc.contributor.author	Wagner, S.
dc.contributor.author	Walford, N.
dc.contributor.author	Watts, D. P.
dc.contributor.author	Werthmüller, D.
dc.contributor.author	Wettig, J.
dc.contributor.author	Witthauer, L.
dc.contributor.author	Wolfes, M.
dc.contributor.author	Zana, L. A.
dc.date.accessioned	2018-03-13T08:18:22Z
dc.date.available	2018-03-13T08:18:22Z
dc.date.issued	2017
dc.identifier.citation	Phys. Rev. C 95, 035208 (2017)	en_US
dc.identifier.uri	https://arxiv.org/pdf/1609.04503.pdf
dc.identifier.uri	http://repository.seku.ac.ke/handle/123456789/3877
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 omega -> pi^0 e^+e^- and eta -> e^+e^-g Dalitz decays with the A2 setup at MAMI	en_US
dc.type	Article	en_US