Evidence of nonlocality due to a gradient term in the optical model

Details Evidence of nonlocality due to a gradient term in the optical model Evidence of nonlocality due to a gradient term in the optical model

2011-12-06

arxiv.org/abs/1112.1172v1

Physics

Nuclear Physics

Nuclear Theory

17 pages, 3 figures, Accepted in Nuclear Physics A (5/Dec/2011)

Scientific paper

We demonstrate that the presence of a velocity-dependent term in the phenomenological optical potential simulates a source of nonlocality. This is achieved by showing that, in the interior of the nucleus, the nonlocal wave functions are different from the corresponding local ones obtained in the absence of the velocity-dependent term in accordance with the Perey effect. It is also shown that the enhancement or suppression of the nonlocal wave function is energy as well as angular momentum dependent. The latter is in line with the results of previous works that introduced parity dependent terms in the conventional optical potential.

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