/ nucl-ex arXiv:1503.00514


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


Dymov, S. (Dubna, JINR) ; Azaryan, T. (Dubna, JINR) ; Bagdasarian, Z. (Tbilisi State U.) ; Barsov, S. (St. Petersburg, INP) ; Carbonell, J. (Orsay) ; Chiladze, D. (JCHP, Julich) ; Engels, R. (JCHP, Julich) ; Gebel, R. (JCHP, Julich) ; Grigoryev, K. (St. Petersburg, INP) ; Hartmann, M. (JCHP, Julich) ; Kacharava, A. (JCHP, Julich) ; Khoukaz, A. (Munster U.) ; Komarov, V. (Dubna, JINR) ; Kulessa, P. (Cracow, INP) ; Kulikov, A. (Dubna, JINR) ; Kurbatov, V. (Dubna, JINR) ; Lomidze, N. (Tbilisi State U.) ; Lorentz, B. (JCHP, Julich) ; Macharashvili, G. (Dubna, JINR) ; Mchedlishvili, D. (JCHP, Julich) ; Merzliakov, S. (Dubna, JINR) ; Mielke, M. (Munster U.) ; Mikirtychyants, M. (St. Petersburg, INP) ; Mikirtychyants, S. (St. Petersburg, INP) ; Nioradze, M. (Tbilisi State U.) ; Ohm, H. (JCHP, Julich) ; Prasuhn, D. (JCHP, Julich) ; Rathmann, F. (JCHP, Julich) ; Serdyuk, V. (JCHP, Julich) ; Seyfarth, H. (JCHP, Julich) ; Shmakova, V. (Dubna, JINR) ; Stroher, H. (JCHP, Julich) ; Tabidze, M. (Tbilisi State U.) ; Trusov, S. (Moscow State U.) ; Tsirkov, D. (Dubna, JINR) ; Uzikov, Yu. (Moscow State U.) ; Valdau, Yu. (Bonn U., HISKP) ; Weidemann, C. (INFN, Ferrara) ; Wilkin, C. (University Coll. London)

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 MeV. By selecting two fast protons at low relative energy E_{pp}, 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 Tn ~ 1/2 Td =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 E_{pp} and the momentum transfer. This lends broad support to the current neutron-proton partial-wave solution that was used in the estimation.

Web-Page: http://inspirehep.net/record/1347000/files/Mx.png; http://inspirehep.net/record/1347000/files/amp_root.png; http://inspirehep.net/record/1347000/files/Ay_3panels.png; http://inspirehep.net/record/1347000/files/CxxCyy_3panels.png; http://inspirehep.net/record/1347000/files/arXiv:1503.00514.pdf


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