Observation of the π(1800) and [formula omitted](1880) mesons in [formula omitted] decay

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

doi:10.1016/j.physletb.2008.01.026

Observation of the π(1800) and [formula omitted](1880) mesons in [formula omitted] decay

P Eugenio, T Adams + Show 52 more

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https://doi.org/10.1016/j.physletb.2008.01.026

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Journal: Physics Letters B	Publication Date: Jan 25, 2008
Citations: 8	License type: cc-by

Affiliation: Florida State University, Institute for High Energy Physics, Brookhaven National Laboratory, University of Massachusetts Dartmouth, Rensselaer Polytechnic Institute, Lomonosov Moscow State University, Northwestern University, University of Notre Dame

#Decay Modes #Brookhaven Experiment + Show 5 more

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Abstract

A partial-wave analysis of the reaction π−p→ηηπ−p at 18 GeV/c has been performed on a data sample of approximately 4000 events obtained by Brookhaven experiment E852. The JPC=0−+π(1800) state is observed in the a0(980)η and f0(1500)π decay modes. It has a mass of 1876±18±16 MeV/c2 and a width of 221±26±38 MeV/c2. The JPC=2−+π2(1880) meson is observed decaying through a2(1320)η. It has a mass of 1929±24±18 MeV/c2 and a width of 323±87±43 MeV/c2. Both states are potential candidates for non-exotic hybrid mesons.

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