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29 March 2024
 
  » arxiv » 1304.3561

 Article overview


Investigation of the dd -> 3He n pi 0 reaction with WASA-at-COSY
WASA-at-COSY Collaboration ; P. Adlarson ; W. Augustyniak ; W. Bardan ; M. Bashkanov ; F.S. Bergmann ; M. Berłowski ; H. Bhatt ; M. Büscher ; H. Calén ; I. Ciepał ; H. Clement ; D. Coderre ; E. Czerwiński ; K. Demmich ; E. Doroshkevich ; R. Engels ; W. Erven ; W. Eyrich ; P. Fedorets ; K. Föhl ; K. Fransson ; F. Goldenbaum ; P. Goslawski ; A. Goswami ; K. Grigoryev ; C.--O. Gullström ; C. Hanhart ; F. Hauenstein ; L. Heijkenskjöld ; V. Hejny ; F. Hinterberger ; M. Hodana ; B. Höistad ; A. Jany ; B.R. Jany ; L. Jarczyk ; T. Johansson ; B. Kamys ; G. Kemmerling ; F.A. Khan ; A. Khoukaz ; D.A. Kirillov ; S. Kistryn ; J. Klaja ; H. Kleines ; B. Kłos ; M. Krapp ; W. Krzemień ; P. Kulessa ; A. Kupść ; K. Lalwani ; D. Lersch ; L. Li ; B. Lorentz ; A. Magiera ; R. Maier ; P. Marciniewski ; B. Mariański ; M. Mikirtychiants ; H.--P. Morsch ; P. Moskal ; B.K. Nandi ; H. Ohm ; I. Ozerianska ; E. Perez del Rio ; N.M. Piskunov ; P. Pluciński ; P. Podkopał ; D. Prasuhn ; A. Pricking ; D. Pszczel ; K. Pysz ; A. Pyszniak ; C.F. Redmer ; J. Ritman ; A. Roy ; Z. Rudy ; S. Sawant ; A. Schmidt ; S. Schadmand ; T. Sefzick ; V. Serdyuk ; N. Shah ; M. Siemaszko ; R. Siudak ; T. Skorodko ; M. Skurzok ; J. Smyrski ; V. Sopov ; R. Stassen ; J. Stepaniak ; E. Stephan ; G. Sterzenbach ; H. Stockhorst ; H. Ströher ; A. Szczurek ; T. Tolba ; A. Trzciński ; R. Varma ; G.J. Wagner ; W. Wkeglorz ; M. Wolke ; A. Wrońska ; P. Wüstner ; P. Wurm ; A. Yamamoto ; X. Yuan ; J. Zabierowski ; C. Zheng ; M.J. Zieliński ; W. Zipper ; J. Złomańczuk ; P. Żuprański ; M. Żurek ;
Date 12 Apr 2013
AbstractAn 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.
Source arXiv, 1304.3561
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