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Adam, H.-H. [Author]; Geck, I. [Author]; Jarczyk, L. [Author]; Kamys, B. [Author]; Klaja, P. [Author]; Moskal, P. [Author]; Piskor-Ignatowicz, B. [Author]; Przerwa, J. [Author]; Smyrski, J. [Author]; Grzonka, D. [Author]; Kilian, K. [Author]; Oelert, W. [Author]; Khoukaz, A. [Author]; Sefzick, T. [Author]; Winter, P. [Author]; Wolke, M. [Author]; Wüstner, P. [Author]; Budzanowski, A. [Author]; Rozek, T. [Author]; Siemaszko, M. [Author]; Zipper, W. [Author]; Lister, T. [Author]; Santo, R. [Author]; Steltenkamp, S. [Author]; [...]

Hadronic 3He eta production near threshold

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  • Media type: E-Article
  • Title: Hadronic 3He eta production near threshold
  • Contributor: Adam, H.-H. [Author]; Geck, I. [Author]; Jarczyk, L. [Author]; Kamys, B. [Author]; Klaja, P. [Author]; Moskal, P. [Author]; Piskor-Ignatowicz, B. [Author]; Przerwa, J. [Author]; Smyrski, J. [Author]; Grzonka, D. [Author]; Kilian, K. [Author]; Oelert, W. [Author]; Khoukaz, A. [Author]; Sefzick, T. [Author]; Winter, P. [Author]; Wolke, M. [Author]; Wüstner, P. [Author]; Budzanowski, A. [Author]; Rozek, T. [Author]; Siemaszko, M. [Author]; Zipper, W. [Author]; Lister, T. [Author]; Santo, R. [Author]; Steltenkamp, S. [Author]; [...]
  • imprint: Inst., 2007
  • Published in: Physical review / C 75, 14004 (2007). doi:10.1103/PhysRevC.75.014004
  • Language: English
  • DOI: https://doi.org/10.1103/PhysRevC.75.014004
  • ISSN: 0556-2813
  • Keywords: magnetic spectrometer: experimental results ; final-state interaction: (eta light nucleus) ; eta: hadroproduction ; p deuteron --> helium-3 eta ; threshold ; angular distribution ; scattering length ; Juelich COSY PS ; p deuteron: exclusive reaction ; 1.58-1.66 GeV/c ; channel cross section: energy dependence
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  • Description: Measurements of eta meson production in proton-deuteron collisions have been performed using the COSY-11 facility at COSY (Julich). Results on total and differential cross sections for the pd -> He-3 eta reaction are presented at five excess energies between Q=5.0 and Q=40.6 MeV. The angular distributions show a transition from an almost isotropic emission close to threshold to a highly anisotropic distribution at higher excess energies. The total cross sections reveal a strong eta-He-3 final state interaction, corresponding to a scattering length of vertical bar(a)vertical bar=(4.2 +/- 0.5) fm and (a)=(0.4 +/- 1.9) fm.
  • Access State: Open Access