Observation of pseudoscalar and axial vector resonances in π−p→K+K−π0n at 18 GeV

Autor: G.S. Adams, T. Adams, Z. Bar-Yam, J.M. Bishop, V.A. Bodyagin, D.S. Brown, N.M. Cason, S.U. Chung, J.P. Cummings, K. Danyo, A.I. Demianov, S. Denisov, V. Dorofeev, J.P. Dowd, P. Eugenio, X.L. Fan, A.M. Gribushin, R.W. Hackenburg, M. Hayek, J. Hu, E.I. Ivanov, D. Joffe, I. Kachaev, W. Kern, E. King, O.L. Kodolova, V.L. Korotkikh, M.A. Kostin, J. Kuhn, V. Lipaev, J.M. Losecco, M. Lu, J.J. Manak, J. Napolitano, M. Nozar, C. Olchanski, A.I. Ostrovidov, T.K. Pedlar, A. Popov, D. Ryabchikov, A.H. Sanjari, L.I. Sarycheva, K.K. Seth, N. Shenhav, X. Shen, W.D. Shephard, N.B. Sinev, D.L. Stienike, S.A. Taegar, D.R. Thompson, A. Tomaradze, I.N. Vardanyan, D.P. Weygand, D. White, H.J. Willutzki, A.A. Yershov
Rok vydání: 2001
Předmět:
Zdroj: Physics Letters B. 516(3-4):264-272
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)00951-0
Popis: A new measurement of the reaction pi- p -> K+ K- pi0 n has been made at a beam energy of 18 GeV. A partial wave analysis of the K+ K- pi0 system shows evidence for three pseudoscalar resonances, eta(1295), eta(1416), and eta(1485), as well as two axial vectors, f1(1285), and f1(1420). Their observed masses, widths and decay properties are reported. No signal was observed for C(1480), an IG J{PC} = 1+ 1{--} state previously reported in phi pi0 decay.
Comment: 7 pages, 6 figs, to be submitted to Phys. Lett
Databáze: OpenAIRE
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