Extraction of the neutron-neutron scattering length ann from kinematically complete neutron-deuteron breakup experiments


Journal Article

Data for the neutron-neutron final-state-interaction cross section obtained recently in a kinematically complete neutron-deuteron breakup experiment have been reanalyzed using rigorous solutions of the three-nucleon Faddeev equations with realistic nucleon-nucleon interactions. A discrepancy was found with respect to a recent analysis based on the W-matrix approximation to the Paris potential. We also estimate theoretical uncertainties in extracting the neutron-neutron scattering length resulting from the use of different nucleon-nucleon interactions and the possible action of the two-pion-exchange three-nucleon force. We find that there exists a certain production angle for the interacting neutron-neutron pair where the uncertainties become minimal.

Full Text

Duke Authors

Cited Authors

  • WitaƂa, H; Hüber, D; Glöckle, W; Tornow, W; González Trotter, DE

Published Date

  • January 1, 1996

Published In

Volume / Issue

  • 20 / 2

Start / End Page

  • 81 - 92

International Standard Serial Number (ISSN)

  • 0177-7963

Digital Object Identifier (DOI)

  • 10.1007/s006010050033

Citation Source

  • Scopus