Measurement of the decay η0 → π0π0η at MAMI

Adlarson, P.; Afzal, F.; Ahmed, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Beck, R.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Collicott, C.; Costanza, S.; Denig, A.; Downie, E. J.; Dieterle, M.; Ferretti Bondy, M. I.; Gardner, S.; Garni, S.; Glazier, D. I.; Glowa, D.; Gradl, W.; Gurevich, G.
.; Hamilton, D. J.; Hornidge, D.; Huber, G. M.; Käser, A.; Kashevarov, V. L.; Kay, S; Keshelashvili, I.; Kondratiev, R.; Korolija, M.
.; Krusche, B.; Lazarev, A; Linturi, James M.; Livingston, K.; Macgregor, I. J.D.; Manley, D. M.; Martel, P. P.; McGeorge, J. C.; Middleton, D. G.; Miskimen, R.; Mushkarenkov, A.; Neganov, A.; Neiser, A.; Oberle, M.; Ostrick, M.; Ott, P.; Otte, P. B.; Oussena, B.; Paudyal, D.; Pedroni, P.; Polonski, A.; Prakhov, S.; Rajabi, A.; Ron, G.; Rostomyan, T.; Sarty, A.; Sfienti, C.; Sokhoyan, V.; Spieker, K.; Steffen, O.; Strakovsky, I. I.; Strub, T.; Supek, I.; Thiel, A.; Thiel, M.; Tiator, L.; Thomas, A.; Unverzagt, M.; Usov, Y. A.; Wagner, S.; Watts, D. P.; Werthmüller, D.; Wettig, J.; Witthauer, L.; Wolfes, M.; Workman, R. L.; Zana, L. A.

dc.contributor.author	Adlarson, P.
dc.contributor.author	Afzal, F.
dc.contributor.author	Ahmed, Z.
dc.contributor.author	Akondi, C. S.
dc.contributor.author	Annand, J. R. M.
dc.contributor.author	Arends, H. J.
dc.contributor.author	Beck, R.
dc.contributor.author	Borisov, N.
dc.contributor.author	Braghieri, A.
dc.contributor.author	Briscoe, W. J.
dc.contributor.author	Cividini, F.
dc.contributor.author	Collicott, C.
dc.contributor.author	Costanza, S.
dc.contributor.author	Denig, A.
dc.contributor.author	Downie, E. J.
dc.contributor.author	Dieterle, M.
dc.contributor.author	Ferretti Bondy, M. I.
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. .
dc.contributor.author	Hamilton, D. J.
dc.contributor.author	Hornidge, D.
dc.contributor.author	Huber, G. M.
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	Livingston, K.
dc.contributor.author	Macgregor, I. J.D.
dc.contributor.author	Manley, D. M.
dc.contributor.author	Martel, P. P.
dc.contributor.author	McGeorge, J. C.
dc.contributor.author	Middleton, D. G.
dc.contributor.author	Miskimen, R.
dc.contributor.author	Mushkarenkov, A.
dc.contributor.author	Neganov, A.
dc.contributor.author	Neiser, 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	Oussena, 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	Ron, G.
dc.contributor.author	Rostomyan, T.
dc.contributor.author	Sarty, A.
dc.contributor.author	Sfienti, C.
dc.contributor.author	Sokhoyan, V.
dc.contributor.author	Spieker, K.
dc.contributor.author
dc.contributor.author	Steffen, O.
dc.contributor.author	Strakovsky, I. I.
dc.contributor.author	Strub, T.
dc.contributor.author	Supek, I.
dc.contributor.author	Thiel, A.
dc.contributor.author	Thiel, M.
dc.contributor.author	Tiator, L.
dc.contributor.author	Thomas, A.
dc.contributor.author	Unverzagt, M.
dc.contributor.author	Usov, Y. A.
dc.contributor.author	Wagner, S.
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	Workman, R. L.
dc.contributor.author	Zana, L. A.
dc.date.accessioned	2018-11-20T07:00:19Z
dc.date.available	2018-11-20T07:00:19Z
dc.date.issued	2018
dc.identifier.citation	Physical Review D, 98, 012001	en_US
dc.identifier.issn	2470-0010
dc.identifier.issn	2470-0029
dc.identifier.uri	https://journals.aps.org/prd/pdf/10.1103/PhysRevD.98.012001
dc.identifier.uri	http://repository.seku.ac.ke/handle/123456789/4290
dc.description	DOI: 10.1103/PhysRevD.98.012001	en_US
dc.description.abstract	An experimental study of the η0 → π0π0η → 6γ decay has been conducted with the best up-to-date statistical accuracy, by measuring η0 mesons produced in the γp → η0 p reaction with the A2 tagged-photon facility at the Mainz Microtron, MAMI. The results obtained for the standard parametrization of the η0 → π0π0η matrix element are consistent with the most recent results for η0 → ππη decays, but have smaller uncertainties. The available statistics and experimental resolution allowed, for the first time, an observation of a structure below the πþπ− mass threshold, the magnitude and sign of which, checked within the framework of the nonrelativistic effective-field theory, demonstrated good agreement with the cusp that was predicted based on the ππ scattering length combination, a0 − a2, extracted from K → 3π decays	en_US
dc.language.iso	en	en_US
dc.publisher	American Physical Society	en_US
dc.title	Measurement of the decay η0 → π0π0η at MAMI	en_US
dc.type	Article	en_US