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Study of the ABC enhancement in the $dd\to\alpha X^{0}$ reaction

Abstract : The polarized d d -> alpha X reaction at beam energies close to the eta threshold shows very strong structure in the missing mass corresponding to the ABC enhancement. The deuteron tensor analysing power A_yy, and the slope of the vector analysing power A_y with respect to angle, have been measured for this reaction around the forward direction. Both signals are small, and their variations with the alpha-particle momentum are in broad agreement with a theoretical model in which each pair of nucleons in the projectile and target deuterons undergoes pion production through the NN -> d pi reaction
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Contributor : Suzanne Robert Connect in order to contact the contributor
Submitted on : Tuesday, February 2, 1999 - 5:01:35 PM
Last modification on : Wednesday, September 16, 2020 - 4:03:05 PM

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R. Wurzinger, O. Bing, M. Boivin, P. Courtat, G. Faldt, et al.. Study of the ABC enhancement in the $dd\to\alpha X^{0}$ reaction. Physics Letters B, Elsevier, 1999, 445, pp.423-427. ⟨in2p3-00014354⟩



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