Increase in |S_L| induced by channel coupling: the case of deuteron scattering

Mackintosh, R.S. and Pang, D.Y. (2012). Increase in |S_L| induced by channel coupling: the case of deuteron scattering. Physical Review C, 86(4) 047602.

DOI: https://doi.org/10.1103/PhysRevC.86.047602

URL: http://prc.aps.org/abstract/PRC/v86/i4/e047602

Abstract

For deuteron scattering from ⁵⁸Ni at laboratory energies of 56, 79, and 120 MeV, we study the dynamic polarization potentials (DPPs) induced by S-wave and D-wave breakup (BU), separately and together, in order to gain insight into the nature of the DPP as well as a counterintuitive property: the existence of L values for which the BU coupling increases |S_L|, a ‘wrong-way’ effect. The effect is associated with the existence of emissive regions in the imaginary DPP, suggesting a connection with the nonlocal nature of the DPP. The same relationship was previously found for ⁶Li scattering, indicating a generic effect bearing on the dynamics of nuclear reactions.

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