Covariant spectator theory of np scattering: Effective range expansions and relativistic deuteron wave functions

Details Covariant spectator theory of np scattering: Effective range expansions and relativistic deuteron wave functions Covariant spectator theory of np scattering: Effective range expansions and relativistic deuteron wave functions

2010-07-05

arxiv.org/abs/1007.0778v1

Physics

Nuclear Physics

Nuclear Theory

32 pages, 14 figures

Scientific paper

We present the effective range expansions for the 1S_0 and 3S_1 scattering phase shifts, and the relativistic deuteron wave functions that accompany our recent high precision fits (with chi^2/N{data} approx 1) to the 2007 world np data below 350 MeV. The wave functions are expanded in a series of analytical functions (with the correct asymptotic behavior at both large and small arguments) that can be Fourier-transformed from momentum to coordinate space and are convenient to use in any application. A fortran subroutine to compute these wave functions can be obtained from the authors.

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