Measurement of analyzing powers of [Formula Presented] and [Formula Presented] produced on a hydrogen and a carbon target with a [Formula Presented] incident polarized proton beam

C. E. Allgower, K. W. Krueger, T. E. Kasprzyk, H. M. Spinka, D. G. Underwood, A. Yokosawa, G. Bunce, H. Huang, Y. Makdisi, T. Roser, M. Syphers, A. A. Derevschikov, Yu A. Matulenko, L. V. Nogach, S. B. Nurushev, A. N. Vasiliev, M. Bai, S. Y. Lee, Y. Goto, N. HayashiT. Ichihara, M. Okamura, N. Saito, H. En’yo, K. Imai, Y. Kondo, Y. Nakada, M. Nakamura, H. Saito, H. Sakai, T. Wakasa, K. Yako, V. Baturine, A. Ogawa, V. Ghazikhanian, G. Igo, S. Trentalange, C. Whitten, N. I. Belikov, A. I. Pavlinov

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

The analyzing powers of (Formula presented) and (Formula presented) were measured using an incident (Formula presented) transversely polarized proton beam at the Brookhaven Alternating Gradient Synchrotron. A magnetic spectrometer measured (Formula presented) inclusive asymmetries on a hydrogen and a carbon target. An elastic polarimeter with a (Formula presented) target measured pp elastic-scattering asymmetries to determine the beam polarization using published data for the pp elastic analyzing power. Using the beam polarization determined from the elastic polarimeter and asymmetries from the inclusive spectrometer, analyzing powers (Formula presented) for (Formula presented) were determined in the (Formula presented) and (Formula presented) ranges (Formula presented) and (Formula presented) respectively. The analyzing power results are similar in both sign and character to other measurements at 200 and (Formula presented) confirming the expectation that high-energy pion inclusive analyzing powers remain large and relatively energy independent. This suggests that pion inclusive polarimetry may be a suitable method for measuring future beam polarizations at BNL RHIC or DESY HERA. Analyzing powers of (Formula presented) and (Formula presented) produced on hydrogen and carbon targets are the same. Various models to explain inclusive analyzing powers are also discussed.

本文言語英語
ページ(範囲)24
ページ数1
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
65
9
DOI
出版ステータス出版済み - 2002
外部発表はい

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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