• Medientyp: E-Artikel
  • Titel: Investigation of the dd→^{3}Henπ^{0} reaction with the FZ Jülich WASA-at-COSY facility
  • Beteiligte: Adlarson, P. [VerfasserIn]; Augustyniak, W. [VerfasserIn]; Coderre, D. [VerfasserIn]; Wüstner, P. [VerfasserIn]; Wurm, P. [VerfasserIn]; Yamamoto, A. [VerfasserIn]; Yuan, X. [VerfasserIn]; Zabierowski, J. [VerfasserIn]; Zheng, C. [VerfasserIn]; Zieliński, M. J. [VerfasserIn]; Zipper, W. [VerfasserIn]; Złomańczuk, J. [VerfasserIn]; Żuprański, P. [VerfasserIn]; Czerwiński, E. [VerfasserIn]; Żurek, M. [VerfasserIn]; Büscher, Markus [VerfasserIn]; Engels, Ralf W. [VerfasserIn]; Stroeher, Hans [VerfasserIn]; Demmich, K. [VerfasserIn]; Doroshkevich, E. [VerfasserIn]; Erven, W. [VerfasserIn]; Eyrich, W. [VerfasserIn]; Fedorets, P. [VerfasserIn]; Föhl, K. [VerfasserIn]; [...]
  • Erschienen: Inst., 2013
  • Erschienen in: Physical review / C 88(1), 014004 (2013). doi:10.1103/PhysRevC.88.014004
  • Sprache: Englisch
  • DOI: https://doi.org/10.1103/PhysRevC.88.014004
  • ISSN: 0556-2813; 1089-490X
  • Schlagwörter: pi0: hadroproduction ; pi: interaction ; differential cross section: angular dependence ; WASA ; experimental results ; partial wave: expansion ; Juelich COSY PS ; channel cross section: measured ; 0.6 GeV/c/nucleon ; nuclear reaction: model ; deuteron deuteron --> helium n pi0 ; deuteron deuteron: exclusive reaction
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  • Beschreibung: An exclusive measurement of the dd -> 3He n \pi 0 reaction was carried at a beam momentum of p = 1.2 GeV/c using the WASA-at-COSY facility. For the first time data on the total cross section as well as differential distributions were obtained. The data are described with a phenomenological approach based on a combination of a quasi-free model and a partial wave expansion for three-body reaction. The total cross section is found to be \sigma(tot) = (2.89 +- 0.01(stat) +- 0.06(sys) +- 0.29(norm)) \mu b. The contribution of the quasi-free processes (with the neutron being target or beam spectator) accounts for 38% of the total cross section and dominates the differential distributions in specific regions of the phase space. The remaining part of the cross section can be described within a partial wave decomposition indicating the significance of p-wave contributions in the final state.
  • Zugangsstatus: Freier Zugang