1. Upper Limit on the Photoproduction Cross Section of the Spin-Exotic π_{1}(1600).
- Author
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Afzal F, Akondi CS, Albrecht M, Amaryan M, Arrigo S, Arroyave V, Asaturyan A, Austregesilo A, Baldwin Z, Barbosa F, Barlow J, Barriga E, Barsotti R, Barton D, Baturin V, Berdnikov VV, Black T, Boeglin W, Boer M, Briscoe WJ, Britton T, Cao S, Chudakov E, Chung G, Cole PL, Cortes O, Crede V, Dalton MM, Darulis D, Deur A, Dobbs S, Dolgolenko A, Dugger M, Dzhygadlo R, Ebersole D, Edo M, Egiyan H, Erbora T, Eugenio P, Fabrizi A, Fanelli C, Fang S, Fitches J, Foda AM, Furletov S, Gan L, Gao H, Gardner A, Gasparian A, Glazier D, Gleason C, Goryachev VS, Grube B, Guo J, Guo L, Hernandez J, Hernandez K, Hoffman ND, Hornidge D, Hou G, Hurck P, Hurley A, Imoehl W, Ireland DG, Ito MM, Jaegle I, Jarvis NS, Jeske T, Jing M, Jones RT, Kakoyan V, Kalicy G, Khachatryan V, Kourkoumelis C, LaDuke A, Larin I, Lawrence D, Lersch DI, Li H, Liu B, Livingston K, Lolos GJ, Lorenti L, Lyubovitskij V, Ma R, Mack D, Mahmood A, Marukyan H, Matveev V, McCaughan M, McCracken M, Meyer CA, Miskimen R, Mitchell RE, Mizutani K, Neelamana V, Ng L, Nissen E, Orešić S, Ostrovidov AI, Papandreou Z, Paudel C, Pedroni R, Pentchev L, Peters KJ, Prather E, Rakshit S, Reinhold J, Remington A, Ritchie BG, Ritman J, Rodriguez G, Romanov D, Saldana K, Salgado C, Schadmand S, Schertz AM, Scheuer K, Schick A, Schmidt A, Schumacher RA, Schwiening J, Septian N, Sharp P, Shen X, Shepherd MR, Sikes J, Smith A, Smith ES, Sober DI, Somov A, Somov S, Stevens JR, Strakovsky II, Sumner B, Suresh K, Tarasov VV, Taylor S, Teymurazyan A, Thiel A, Viducic T, Whitlatch T, Wickramaarachchi N, Wunderlich Y, Yu B, Zarling J, Zhang Z, Zhou X, and Zihlmann B
- Abstract
The spin-exotic hybrid meson π_{1}(1600) is predicted to have a large decay rate to the ωππ final state. Using 76.6 pb^{-1} of data collected with the GlueX detector, we measure the cross sections for the reactions γp→ωπ^{+}π^{-}p, γp→ωπ^{0}π^{0}p, and γp→ωπ^{-}π^{0}Δ^{++} in the range E_{γ}=8-10 GeV. Using isospin conservation, we set the first upper limits on the photoproduction cross sections of the π_{1}^{0}(1600) and π_{1}^{-}(1600). We combine these limits with lattice calculations of decay widths and find that photoproduction of η^{'}π is the most sensitive two-body system to search for the π_{1}(1600).
- Published
- 2024
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