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RHIC polarimetry

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Abstract

Polarimeters were developed to measure the polarization of the proton beam at RHIC in relative scale through the asymmetry measurement of the elastic proton-carbon scattering. Recoil carbon ions with kinetic energy of 400 ≤ E ≤ 900 keV were detected by silicon strip detectors installed at 90° with respect to the beam. The absolute polarization is given by normalizing against another polarimeter implemented at RHIC, namely a polarized hydrogen gas jet polarimeter. In this report, the details of polarization measurements, data analysis, and systematic uncertainties are discussed based on the data taken during √s = 200 GeV operation of Run05 at RHIC.

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Authors and Affiliations

  1. RIKEN, 2-1 Hirosawa Wako, Saitama, 351-0198, Japan

    I. Nakagawa

  2. RIKEN-BNL Research Center, Upton, NY, 11973, USA

    I. Nakagawa & G. Bunce

  3. Institute for Theoretical and Experimental Physics (ITEP), 117259, Moscow, Russia

    I. Alekseev & D. N. Svirida

  4. Brookhaven National Laboratory, Upton, NY, 11973, USA

    A. Bazilevsky, G. Bunce, R. Gill, H. Huang, Y. Makdisi, H. Okada, J. Wood, K. Yip & A. Zelenski

  5. University of Geneva, 1205, Geneva, Switzerland

    A. Bravar

  6. Yale University, New Haven, CT, 06520, USA

    S. Dhawan

  7. University of California, Riverside, CA, 92521, USA

    K. O. Eyser

  8. University of Wisconsin, Madison, WI, 53706, USA

    W. Haeberli & T. Wise

  9. University of Erlangen, 91058, Erlangen, Germany

    A. Nass

  10. Indiana University Cyclotron Facility, Bloomington, IN, 47408, USA

    E. Stephenson

Authors
  1. I. Nakagawa
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  2. I. Alekseev
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  3. A. Bazilevsky
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  4. A. Bravar
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  5. G. Bunce
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  6. S. Dhawan
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  7. K. O. Eyser
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  8. R. Gill
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  9. W. Haeberli
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  10. H. Huang
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  11. Y. Makdisi
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  12. A. Nass
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  13. H. Okada
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  14. E. Stephenson
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  15. D. N. Svirida
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  16. T. Wise
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  17. J. Wood
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  18. K. Yip
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  19. A. Zelenski
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Corresponding author

Correspondence to I. Nakagawa.

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Nakagawa, I., Alekseev, I., Bazilevsky, A. et al. RHIC polarimetry. Eur. Phys. J. Spec. Top. 162, 259–265 (2008). https://doi.org/10.1140/epjst/e2008-00801-1

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  • DOI: https://doi.org/10.1140/epjst/e2008-00801-1

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