Study of pbar-p -> eta-eta-pizero-pizero in flight

A.V. Anisovich; A.V. Sarantsev; B.S. Zou; C.A. Baker. C.J. Batty; D.V. Bugg; V.A. Nikonov; V.V. Sarantsev

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Study of pbar-p -> eta-eta-pizero-pizero in flight

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arxiv 1109.6433 v1 pith:BZ2DWXE6 submitted 2011-09-29 hep-ex hep-ph

A.V. Anisovich , C.A. Baker. C.J. Batty , D.V. Bugg , V.A. Nikonov , A.V. Sarantsev , V.V. Sarantsev , B.S. Zou This is my paper

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keywords eta-eta-pizero-pizeroevidencemasspbar-pthereanalysisbeamdata

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An analysis of data on pbar-p -> eta-eta-pizero-pizero is presented at pbar beam momenta 600 to 1940 MeV/c. There is evidence for an I = 1, J^PC = 2^-+ resonance in eta-eta-pizero with mass M = 1880 +- 20 MeV and width 255 +- 45 MeV, decaying strongly a2(1320)-eta; it is too strong to be explained as the high mass tail of \pi_2(1670) -> a2(1320)-eta. There is tentative evidence also for weak decays to f_0(1500)\pi. It makes a natural partner to the eta 2(1860).

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