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Dymov, S. [Author]; Büscher, M. [Author]; Kurbatov, V. [Author]; Lang, N. [Author]; Macharashvili, G. [Author]; Mersmann, T. [Author]; Merzliakov, S. [Author]; Mikirtytchiants, S. [Author]; Mussgiller, A. [Author]; Prasuhn, D. [Author]; Rathmann, F. [Author]; Schleichert, R. [Author]; Gusev, D. [Author]; Ströher, H. [Author]; Uzikov, Yu. [Author]; Wilkin, C. [Author]; Yaschenko, S. [Author]; Hartmann, M. [Author]; Hejny, V. [Author]; Kacharava, A. [Author]; Khoukaz, A. [Author]; Komarov, V. [Author]; Kulessa, P. [Author]; Kulikov, A. [Author]

Production of the 1S0 diproton in the pp->pp pi0 reaction at 0.8 GeV

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  • Media type: E-Article
  • Title: Production of the 1S0 diproton in the pp->pp pi0 reaction at 0.8 GeV
  • Contributor: Dymov, S. [Author]; Büscher, M. [Author]; Kurbatov, V. [Author]; Lang, N. [Author]; Macharashvili, G. [Author]; Mersmann, T. [Author]; Merzliakov, S. [Author]; Mikirtytchiants, S. [Author]; Mussgiller, A. [Author]; Prasuhn, D. [Author]; Rathmann, F. [Author]; Schleichert, R. [Author]; Gusev, D. [Author]; Ströher, H. [Author]; Uzikov, Yu. [Author]; Wilkin, C. [Author]; Yaschenko, S. [Author]; Hartmann, M. [Author]; Hejny, V. [Author]; Kacharava, A. [Author]; Khoukaz, A. [Author]; Komarov, V. [Author]; Kulessa, P. [Author]; Kulikov, A. [Author]
  • imprint: North-Holland Publ., 2006
  • Published in: Physics letters / B 635, 270 - 274 (2006). doi:10.1016/j.physletb.2006.03.012
  • Language: English
  • DOI: https://doi.org/10.1016/j.physletb.2006.03.012
  • ISSN: 0370-2693
  • Keywords: pp),pi(0) ; magnetic spectrometer: experimental results ; nuclear reactions H-1(p ; spin: singlet ; p p --> 2p pi0 ; p p: inelastic scattering ; differential cross section: dip ; 0.8 GeV ; E=0.8 GeV ; Juelich COSY PS ; measured sigma(E,theta) ; differential cross section: energy dependence ; pi0: hadroproduction
  • Origination:
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  • Description: The pp -> pp pi(0) differential cross section has been measured with the ANKE spectrometer at COSY-Julich for pion cms angles between 0 degrees and 15.4 degrees at a proton beam energy of 0.8 GeV. The selection of diproton pairs with an excitation energy E-pp < 3 MeV ensures that the final pp system is dominantly in the spin-singlet S-1(0) state. The kinematics are therefore very similar to those of pp -> d pi(+) but with different spin and isospin transitions. The cross sections are over two orders of magnitude smaller than those of pp -> d pi(+) and show a forward dip that is even stronger than that seen at lower energies. The results should provide a crucial extra test of pion production models in nucleon-nucleon collisions. (c) 2006 Elsevier B.V. All rights reserved.
  • Access State: Open Access