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

D.L. Adams,N. Akchurin,L.V. Alexeeva,N.I. Belikov,B.E. Bonner,A. Bravar,J. Bystricky,M.D. Corcoran,J.D. Cossairt,J. Cranshaw,A.A. Derevschikov,H. En'yo,H. Funahashi,Y. Goto,O.A. Grachov,D.P. Grosnick,D.A. Hill,T. Iijima,K. Imai,Y. Itow,K. Iwatani,Yu.V. Kharlov,K.W. Krueger,K. Kuroda,M. Laghai,F. Lehar,A. de Lesquen,D. Lopiano,F.C. Luehring,T. Maki,S. Makino,A. Masaike,Yu.A. Matulenko,A.P. Meschanin,A. Michalowicz,D.H. Miller,K. Miyake,T. Nagamine,F. Nessi-Tedaldi,M. Nessi,C. Nguyen,L.V. Nogach,S.B. Nurushev,Y. Ohashi,Y. Onel,D.I. Patalakha,G. Pauletta,A. Penzo,G.F. Rappazzo,A.L. Read,J.B. Roberts,L. van Rossum,V.L. Rykov,N. Saito,G. Salvato,P. Schiavon,T. Shima,J. Skeens,V.L. Solovyanov,H. Spinka,R.W. Stanek,R. Takashima,F. Takeutchi,N. Tamura,N. Tanaka,D.G. Underwood,A.N. Vasiliev,J.L. White,S. Yamashita,A. Yokosawa,T. Yoshida,A. Zanetti

NUCLEAR PHYSICS B（1998）

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Abstract

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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13.88.+e,13.85.Qk,14.40.Aq

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