Observation of exotic meson production in the reaction π- p → η′τ- p at 18 GeV/c

E. I. Ivanov*, D. L. Stienike, D. I. Ryabchikov, 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, S. P. Denisov, V. A. Dorofeev, J. P. Dowd, P. Eugenio, X. L. Fan, R. W. Hackenburg, M. HayekD. Joffe, I. A. Kachaev, W. Kern, E. King, O. L. Kodolova, V. L. Korotkikh, M. A. Kostin, J. Kuhn, V. V. Lipaev, J. M. LoSecco, J. J. Manak, J. Napolitano, M. Nozar, C. Olchanski, A. I. Ostrovidov, T. K. Pedlar, A. V. Popov, L. I. Sarycheva, K. K. Seth, X. Shen, N. Shenhav, W. D. Shephard, N. B. Sinev, J. A. Smith, S. A. Taegar, A. Tomaradze, I. N. Vardanyan, D. P. Weygand, D. B. White, H. J. Willutzki, M. Witkowski, A. A. Yershov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

144 Scopus citations


The n′π- system produced in the reaction π-p → p n′- at 180 GeV/c was studied. An exotic meson decaying to n′- was produced. A high-mass state consistent with the a4(2040) was observed decaying to n′-.

Original languageEnglish (US)
Pages (from-to)3977-3980
Number of pages4
JournalPhysical review letters
Issue number18
StatePublished - Apr 30 2001

ASJC Scopus subject areas

  • General Physics and Astronomy


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