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Analysing powers and spin correlations in deuteron–proton charge exchange at 726 MeV

Abstract : The charge exchange of vector polarised deuterons on a polarised hydrogen target has been studied in a high statistics experiment at the COSY-ANKE facility at a deuteron beam energy of Td=726 MeVTd=726 MeV. By selecting two fast protons at low relative energy EppEpp, the measured analysing powers and spin correlations are sensitive to interference terms between specific neutron–proton charge-exchange amplitudes at a neutron kinetic energy of View the MathML sourceTn≈12Td=363 MeV. An impulse approximation calculation, which takes into account corrections due to the angular distribution in the diproton, describes reasonably the dependence of the data on both EppEpp and the momentum transfer. This lends broad support to the current neutron–proton partial wave solution that was used in the estimation.
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http://hal.in2p3.fr/in2p3-01153318
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Submitted on : Tuesday, May 19, 2015 - 3:45:53 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:49 PM

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S. Dymov, T. Azaryan, Z. Bagdasarian, S. Barsov, J. Carbonell, et al.. Analysing powers and spin correlations in deuteron–proton charge exchange at 726 MeV. Physics Letters B, Elsevier, 2015, 744, pp.391-394. ⟨10.1016/j.physletb.2015.04.019⟩. ⟨in2p3-01153318⟩

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