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Measurement of Single Spin Asymmetry in Η-Meson Production in P↑p and P̄↑p Interactions in the Beam Fragmentation Region at 200 GeV/c

DL Adams,N Akchurin,LV Alexeeva,NI Belikov,BE Bonner,A Bravar,J Bystricky,MD Corcoran,JD Cossairt,J Cranshaw,AA Derevschikov,H En'yo,H Funahashi,Y Goto,OA Grachov,DP Grosnick,DA Hill,T Iijima,K Imai,Y Itow,K Iwatani,YV Kharlov,KW Krueger,K Kuroda,M Laghai,F Lehar,A de Lesquen,D Lopiano, GC Luehring,T Maki,S Makino,A Masaike,YA Matulenko,AP Meschanin,A Michalowicz,DH Miller,K Miyake,T Nagamine,F Nessi-Tedaldi,M Nessi,C Nguyen,LV Nogach,SB Nurushev,Y Ohashi,Y Onel,DI Patalakha,G Pauletta,A Penzo,GF Rappazzo,AL Read,JB Roberts,L van Rossum,VL Rykov,N Saito,G Salvato,P Schiavon,T Shima,J Skeens,VL Solovyanov,H Spinka,RW Stanek,R Takashima,F Takeutchi,N Tamura,N Tanaka,DG Underwood,AN Vasiliev,JL White,S Yamashita,A Yokosawa,T Yoshida,A Zanetti

Nuclear physics B（1998）

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摘要
We present experimental results on measuring a single spin asymmetry in η-meson production in the interaction of transversely polarized protons and antiprotons at plab = 200 GeV/c with a proton target in the region 0.2 < xF < 0.7 for p↑p, 0.3 < xF < 0.7 for p̄↑p and 0.7 < pT < 2.0 GeV/c. A comparison of single spin asymmetries in π- and η-meson production is made.
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关键词
experimental result,polarization effects,single spin asymmetry,eta-meson production
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