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A study of the reaction {pi}{sup -} p {yields} {omega}{pi}{sup -} p at 18 GeV/c: The D and S decay amplitudes for b{sub 1}(1235) {yields} {omega}{pi}

The reaction {pi}{sup -} p {yields} {omega}{pi}{sup -} p, {omega} {yields} {pi}{sup +} {pi}{sup -} {pi}{sup 0} has been studied at 18 GeV/c. The {omega}{pi}{sup -} mass spectrum is found to be dominated by the b{sub 1}(1235). Partial Wave Analysis shows that b{sub 1} production is dominated by natur...

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Bibliographic Details
Published in:Physics letters. B 2002-08, Vol.541
Main Authors: Mina Nozar, Gary Adams, T. Adams, Z. Bar-Yam, J.M. Bishop, V.A. Bodyagin, D.S. Brown, N.M. Cason, S.U. Chung, John Cummings, K. Danyo, A.I. Demianov, S.P. Denisov, V. Dorofeev, J.P. Dowd, Paul Eugenio, X.L. Fan, A.M. Gribushin, R.W. Hackenburg, M. Hayek, J. Hu, E.I. Ivanov, David Joffe, I. Kachaev, W. Kern, E. King, O.L. Kodolova, V.L. Korotkikh, M.A. Kostin, Joachim Kuhn, V.V. Lipaev, John Losecco, M. Lu, Joseph Manak, James Napolitano, C. Olchanski, Alexander Ostrovidov, T.K. Pedlar, A.V. Popov, D.I. Ryabchikov, L.I. Sarycheva, K.K. Seth, N. Shenhav, Xiaoyan Shen, W.D. Shephard, N.B. Sinev, D.L. Stienike, J.S. Suh, S.A. Taegar, A. Tomaradze, I.N. Vardanyan, Dennis Weygand, D.B. White, H.J. Willutzki, M. Witkowski, A.A. Yershov
Format: Article
Language:English
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Summary:The reaction {pi}{sup -} p {yields} {omega}{pi}{sup -} p, {omega} {yields} {pi}{sup +} {pi}{sup -} {pi}{sup 0} has been studied at 18 GeV/c. The {omega}{pi}{sup -} mass spectrum is found to be dominated by the b{sub 1}(1235). Partial Wave Analysis shows that b{sub 1} production is dominated by natural parity exchange. The S-wave and D-wave amplitudes for b{sub 1}(1235) {yields} {omega}{pi} have been determined, and it is found that the amplitude ratio, |D/S| = 0.269 {+-} (0.009){sub stat} {+-} (0.01){sub sys} and the phase difference, {phi}(D-S) = 10.54{sup o} {+-} (2.4{sup o}){sub stat} {+-} (3.9){sub sys}.
ISSN:0370-2693
1873-2445