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Yaschenko, S. [Author]; Dymov, S. [Author]; Kulessa, P. [Author]; Kulikov, A. [Author]; Kurbatov, V. [Author]; Lang, N. [Author]; Lehmann, I. [Author]; Lorentz, B. [Author]; Mersmann, T. [Author]; Merzliakov, S. [Author]; Mikirtytchiants, S. [Author]; Mussgiller, A. [Author]; Kacharava, A. [Author]; Nioradze, M. [Author]; Ohm, H. [Author]; Prasuhn, D. [Author]; Schleichert, R. [Author]; Seyfarth, H. [Author]; Steffens, E. [Author]; Stein, H. J. [Author]; Ströher, H. [Author]; Uzikov, Yu. [Author]; Zalikhanov, B. [Author]; Komarov, V. [Author]; [...]

Measurement of the Analyzing Power in Polarised pd->(pp)n with a Fast Forward Diproton

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  • Media type: E-Article
  • Title: Measurement of the Analyzing Power in Polarised pd->(pp)n with a Fast Forward Diproton
  • Contributor: Yaschenko, S. [Author]; Dymov, S. [Author]; Kulessa, P. [Author]; Kulikov, A. [Author]; Kurbatov, V. [Author]; Lang, N. [Author]; Lehmann, I. [Author]; Lorentz, B. [Author]; Mersmann, T. [Author]; Merzliakov, S. [Author]; Mikirtytchiants, S. [Author]; Mussgiller, A. [Author]; Kacharava, A. [Author]; Nioradze, M. [Author]; Ohm, H. [Author]; Prasuhn, D. [Author]; Schleichert, R. [Author]; Seyfarth, H. [Author]; Steffens, E. [Author]; Stein, H. J. [Author]; Ströher, H. [Author]; Uzikov, Yu. [Author]; Zalikhanov, B. [Author]; Komarov, V. [Author]; [...]
  • imprint: APS, 2005
  • Published in: Physical review letters 94, 072304 (2005). doi:10.1103/PhysRevLett.94.072304
  • Language: English
  • DOI: https://doi.org/10.1103/PhysRevLett.94.072304
  • ISSN: 0031-9007
  • Keywords: p deuteron: nuclear reaction ; 0.5: 0.8 GeV ; nucleon: exchange ; magnetic spectrometer: experimental results ; p deuteron --> n 2p ; analyzing power: angular dependence ; p: polarized beam ; partial wave ; Juelich COSY PS ; Delta(1232)
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  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: A measurement of the analyzing power A(y) of the (p) over right arrowd-->(pp)+n reaction was carried out at the ANKE spectrometer at COSY at beam energies of 0.5 and 0.8 GeV by detection of a fast forward proton pair of small excitation energy E-pp<3 MeV. The S-wave dominance in the fast diproton is experimentally demonstrated in this reaction. While at T-p=0.8 GeV the measured analyzing power almost vanishes, it rises to nearly unity at T-p=0.5 GeV for neutrons emitted at theta(n)(c.m.)=167 degrees. The results are compared with a model taking into account one-nucleon exchange, single scattering, and Delta(1232) excitation in the intermediate state. The model describes fairly well the unpolarized cross section obtained earlier and the analyzing power at 0.8 GeV; it fails to reproduce A(y) at 0.5 GeV.
  • Access State: Open Access