Quartet S Wave Neutron Deuteron Scattering in Effective Field Theory

Details Quartet S Wave Neutron Deuteron Scattering in Effective Field Theory Quartet S Wave Neutron Deuteron Scattering in Effective Field Theory

1999-07-20

arxiv.org/abs/nucl-th/9907077v2

Nucl.Phys. A671 (2000) 357-379

Physics

Nuclear Physics

Nuclear Theory

27 pages LaTeX2e with 11 figures, uses packages includegraphicx (6 .eps files), color and feynmp (necessary Metapost files inc

Scientific paper

10.1016/S0375-9474(99)00691-0

The real and imaginary part of the quartet S wave phase shift in nd scattering (^4 S_{3/2}) for centre-of-mass momenta of up to 300 MeV (E_cm \approx 70 MeV) is presented in effective field theory, using both perturbative pions and a theory in which pions are integrated out. As available, the calculation agrees with both experimental data and potential model calculations, but extends to a higher, so far untested momentum r\'egime above the deuteron breakup point. A Lagrangean more feasible for numerical computations is derived.

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