Combined method to extract spectroscopic information

Details Combined method to extract spectroscopic information Combined method to extract spectroscopic information

2005-05-16

arxiv.org/abs/nucl-th/0505047v1

Phys.Rev.C72:017602,2005

Physics

Nuclear Physics

Nuclear Theory

accepted in Phys. Rev. C, 4 pages and 2 figures

Scientific paper

10.1103/PhysRevC.72.017602

Spectroscopic factors (SF) play an important role in nuclear physics and astrophysics. The traditional method of extracting SF from direct transfer reactions suffers from serious ambiguities. We discuss a modified method which is based on including the asymptotic normalization coefficient (ANC) of the overlap functions into the transfer analysis. In the modified method the contribution of the external part of the reaction amplitude, typically dominant, is fixed and the SF is determined from fitting the internal part. We illustrate the modified method with $(d,p)$ reactions on ${}^{208}{\rm Pb}, {}^{12}{\rm C}$, and ${}^{84}{\rm Se}$ targets at different energies. The modified method allows one to extract the SF, which do not depend on the shape of the single-particle nucleon-target interaction, and has the potential of improving the reliability and accuracy of the structure information. This is specially important for nuclei on dripline, where not much is known.

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