Radius of 8B halo from the asymptotic normalization coefficient

F. Carstoiu, L. Trache, C. A. Gagliardi, R. E. Tribble, and A. M. Mukhamedzhanov
Phys. Rev. C 63, 054310 – Published 19 April 2001
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Abstract

The experimental asymptotic normalization coefficient determined from peripheral transfer reactions is used to obtain the root-mean-square radius of the wave function for the loosely bound proton in 8B. It is shown that the asymptotic region contributes most and that matching of the interior wave function with the asymptotic part yields a nearly model-independent radius. We obtain r21/2=4.20±0.22fm for the root-mean-square (rms) radius of the last proton, much larger than the rms radius of the 7Be core. This large value and the fact that the asymptotic part of the proton wave function contributes 85% to the rms radius are good sign that 8B is a halo nucleus.

  • Received 22 January 2001

DOI:https://doi.org/10.1103/PhysRevC.63.054310

©2001 American Physical Society

Authors & Affiliations

F. Carstoiu1,2, L. Trache1, C. A. Gagliardi1, R. E. Tribble1, and A. M. Mukhamedzhanov1

  • 1Cyclotron Institute, Texas A&M University, College Station, Texas 77843
  • 2Institute of Atomic Physics, P. O. Box MG-6, Bucharest, Romania

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Vol. 63, Iss. 5 — May 2001

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