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

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

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 explaine...

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Veröffentlicht in:arXiv.org 2011-09
Hauptverfasser: Anisovich, A V, C A Baker C J Batty, Bugg, D V, Nikonov, V A, Sarantsev, A V, Sarantsev, V V, Zou, B S
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Physics - High Energy Physics - Experiment
Physics - High Energy Physics - Phenomenology
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C A Baker C J Batty
Bugg, D V
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Sarantsev, A V
Sarantsev, V V
Zou, B S
description 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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title Study of pbar-p -> eta-eta-pizero-pizero in flight
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