Abstract
Tensor analyzing power T 20 of the reaction d ↑ A → π–(0°)X was measured in the fragmentation of 9 GeV deuterons into pions with momenta from 3.5 to 5.3 GeV/c on hydrogen, beryllium and carbon targets. This momentum range corresponds to the region of cumulative production with the cumulative variable x c from 1.08 to 1.76. The values of T 20 were found to be small and consistent with positive values in contradiction with the predictions based on a direct mechanism assuming N N collision between a high momentum nucleon in the deuteron and a target nucleon (N N → N N π).
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Zolin, L. et al. (1999). Measurement of the Tensor Analyzing Power T 20 in the Fragmentation of 9 GeV Tensor Polarized Deuterons into Cumulative Pions. In: Desplanques, B., Protasov, K., Silvestre-Brac, B., Carbonell, J. (eds) Few-Body Problems in Physics ’98. Few-Body Systems, vol 10. Springer, Vienna. https://doi.org/10.1007/978-3-7091-6798-4_87
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DOI: https://doi.org/10.1007/978-3-7091-6798-4_87
Publisher Name: Springer, Vienna
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