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Observation of the pi(1800) and pi(2)(1880) mesons in eta eta pi(-) decay - E852 Collaboration

Author:
Eugenio, P.  Ostrovidov, A. I.  Adams, G. S.  Adams, T.  Bar-Yam, Z.  Bishop, J. M.  Bodyagin, V. A.  Brown, D. S.  Cason, N. M.  Chung, S. U.  Cummings, J. P.  Danyo, K.  Denisov, S. P.  Dorofeev, V.  Dowd, J. P.  Fan, X. L.  Gribushin, A. M.  Hackenburg, R. W.  Hayek, M.  Hu, J.  Ivanov, E. I.  Joffe, D.  Kern, W.  King, E.  Kodolova, O. L.  Korotkikh, V. L.  Kostin, M. A.  Kuhn, J.  Lipaev, V. V.  Losecco, J. M.  Lu, M.  Manak, J. J.  Nozar, M.  Olchanski, C.  Pedlar, T. K.  Popov, A. V.  Ryabchikov, D. I.  Sarycheva, L. I.  Seth, K. K.  Sharin, B.  Shenhav, N.  Shen, X.  Shephard, W. D.  Sinev, N. B.  Stienike, D. L.  Suh, J. S.  Taegar, S. A.  Tomaradze, A.  Vardanyan, I. N.  Weygand, D. P.  White, D. B.  Willutzki, H. J.  Witkowski, M.  Yershov, A. A.  


Journal:
PHYSICS LETTERS B


Issue Date:
2008


Abstract(summary):

A partial-wave analysis of the reaction pi(-)p -> eta eta pi(-)p at 18 GeV/c has been performed on a data sample of approximately 4000 events obtained by Brookhaven experiment E852. The J(PC) = 0(-+)pi(1800) state is observed in the a(0)(980)eta and f(0)(1500)pi decay modes. It has a mass of 1876 +/- 18 +/- 16 MeV/c(2) and a width of 221 +/- 26 +/- 38 MeV/c(2). The J(PC) = 2(-+)pi(2)(1880) meson is observed decaying through a(2)(1320)eta. It has a mass of 1929 +/- 24 +/- 18 MeV/c(2) and a width of 323 +/- 87 +/- 43 MeV/c(2). Both states are potential candidates for non-exotic hybrid mesons. (c) 2008 Elsevier B.V. All rights reserved.


Page:
466---470


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