Analyzing-power measurement in inclusive 0 production at high xF

B. E. Bonner, J. A. Buchanan, D. C. Carey, J. M. Clement, R. N. Coleman, M. D. Corcoran, J. D. Cossairt, A. A. Derevshchikov, D. P. Grosnick, D. A. Hill, K. Imai, F. Lehar, A. De Lesquen, D. Lopiano, F. C. Luehring, J. W. Kruk, K. Kuroda, T. Maki, S. Makino, A. MasaikeYu A. Matulenko, A. P. Meshchanin, A. Michalowicz, H. E. Miettinen, D. H. Miller, K. Miyake, A. H. Mohammadzadeh, G. S. Mutchler, T. Nagamine, F. Nessi-Tedaldi, M. Nessi, S. B. Nurushev, C. Nguyen, Y. Ohashi, G. Pauletta, A. Penzo, G. C. Phillips, A. L. Read, J. B. Roberts, L. Van Rossum, G. Salvato, P. Schiavon, T. Shima, V. L. Solovyanov, H. M. Spinka, R. W. Stanek, P. M. Stevenson, R. Takashima, F. Takeuchi, D. G. Underwood, A. N. Vasiliev, A. Villari, J. L. White, A. Yokosawa, T. Yoshida, A. Zanetti, Q. Zhu

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29 Citations (Scopus)

Abstract

The analyzing power AN in inclusive 0 production has been measured with use of the new 185-GeV/c Fermilab polarized proton beam. We obtain the value AN=0.100.03 for 0's in the kinematic region 0.2<xF<0.8 and 0.3<pT<1.2 GeV/c. In certain models of particle production this suggests that the spin of the proton is carried by its valence quarks.

Original languageEnglish
Pages (from-to)1918-1921
Number of pages4
JournalPhysical review letters
Volume61
Issue number17
DOIs
Publication statusPublished - 1988 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Bonner, B. E., Buchanan, J. A., Carey, D. C., Clement, J. M., Coleman, R. N., Corcoran, M. D., Cossairt, J. D., Derevshchikov, A. A., Grosnick, D. P., Hill, D. A., Imai, K., Lehar, F., De Lesquen, A., Lopiano, D., Luehring, F. C., Kruk, J. W., Kuroda, K., Maki, T., Makino, S., ... Zhu, Q. (1988). Analyzing-power measurement in inclusive 0 production at high xF. Physical review letters, 61(17), 1918-1921. https://doi.org/10.1103/PhysRevLett.61.1918