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The following article is Open access
Exotic meson production in BNL experiment E852
G S Adams1, T Adams2, Z Bar-Yam3, J M Bishop2, V A Bodyagin4, D S Brown5, N M Cason2, M Chasse1, S U Chung6, J P Cummings1, K Danyo6, A I Demianov4, S P Denisov7, V Dorofeev5, J P Dowd3, P Eugenio8, X L Fan5, A M Gribushin4, R W Hackenburg6, M Hayek3, J Hu1, E I Ivanov9, D Joffe5, I Kachaev7, W Kern3, E King3, O L Kodolova4, V L Korotkikh4, M A Kostin4, J Krenkel1, J Kuhn1, V V Lipaev7, J M LoSecco2, M Lu1, J J Manak2, M Nozar1, C Olchanski6, A I Ostrovidov8, T K Pedlar5, A V Popov7, D I Ryabchikov7, L I Sarycheva4, K K Seth5, N Shenhav3, X Shen10, W D Shephard2, N B Sinev4, D L Stienike2, J S Suh6, S A Taegar2, A Tomaradze4, I N Vardanyan4, D P Weygand10, D B White1, H J Willutzki6, M Witkowski1 and A A Yershov4
The status of spin-exotic mesons is reviewed. There is now compelling evidence for at least three π1 states between one and two GeV. Preliminary results from the reaction π−p → π+π+π−π−π0p show structure in the exotic waves corresponding to IGJPC = 0−2+−.