Toward a resolution of the neutron-neutron scattering-length issue


Journal Article

We report a high-precision determination of the 1S0 neutron-neutron scattering length (ann) using the 2H(π-,ny)n reaction. The value obtained in the present work is -18.50 ± 0.05 (statistical) ± 0.44 (systematic) ± 0.30 (theoretical) fm, which is consistent with the values from previous measurements. Combining our result with previous measurements reduces the total uncertainty in the world average of ann to ±0.4 fm, matching the accuracy to which the charge-symmetric parameter app is determined. © 1998 Elsevier Science B.V. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Howell, CR; Chen, Q; Carman, TS; Hussein, A; Gibbs, WR; Gibson, BF; Mertens, G; Moore, CF; Morris, C; Obst, A; Pasyuk, E; Roper, CD; Salinas, F; Slaus, I; Sterbenz, S; Tornow, W; Walter, RL; Whiteley, CR; Whitton, M

Published Date

  • December 24, 1998

Published In

Volume / Issue

  • 444 / 3-4

Start / End Page

  • 252 - 259

International Standard Serial Number (ISSN)

  • 0370-2693

Digital Object Identifier (DOI)

  • 10.1016/S0370-2693(98)01386-0

Citation Source

  • Scopus