Articolo in rivista, 1998, ENG, 10.1016/S0550-3213(97)00714-1

Measurement of single spin asymmetry in eta-meson production in polarized proton-proton and polarized antiproton-proton 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, Yu V Kharlov, KW Krueger, K Kuroda, M Laghai, F Lehar, A de Lesquen, D Lopiano, FC Luehring, T Maki, S Makino, A Masaike, Yu A 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

Rice Univ, TW Bonner Nucl Lab, Houston, TX 77251 USA Univ Iowa, Dept Phys, Iowa City, IA 52242 USA Inst High Energy Phys, Protvino 142284, Russia Univ Trieste, Dipartimento Fis, I-34100 Trieste, Italy CEN Saclay, F-91191 Gif Sur Yvette, France Fermi Natl Accelerator Lab, Batavia, IL 60510 USA Kyoto Univ, Dept Phys, Kyoto 606, Japan Argonne Natl Lab, Argonne, IL 60439 USA Hiroshima Univ, Higashihiroshima 724, Japan Phys Particules Lab, F-74017 Annecy Le Vieux, France Northwestern Univ, Dept Phys, Evanston, IL 60201 USA Univ Occupat & Environm Hlth, Kitakyushu, Fukuoka 807, Japan Univ Udine, I-33100 Udine, Italy Univ Messina, Dipartimento Fis, I-98100 Messina, Italy Kyoto Univ Educ, Kyoto 612, Japan Kyoto Sangyo Univ, Kyoto 612, Japan Okayama Univ, Okayama 700, Japan Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA Osaka City Univ, Osaka 558, Japan

We present experimental results on measuring a single spin asymmetry in eta-meson production in the interaction of transversely polarized protons and antiprotons at p(lab) = 200 GeV/c with a proton target in the region 0.2 < x(F) < 0.7 for p up arrow p, 0.3 < x(F) < 0.7 for (p) over bar up arrow p and 0.7 < p(T) < 2.0 GeV/c. A comparison of single spin asymmetries in pi- and eta-meson production is made

Nuclear physics. B (Print) 510 (1-2), pp. 3–11

Keywords

HADRON-HADRON COLLISIONS; POLARIZED PROTON-BEAM; ANALYZING POWER; ANTIPROTONS

CNR authors

Salvato Gabriele

CNR institutes

IPCF – Istituto per i processi chimico-fisici