Evidence for Halo in Quenching of ⁶He β Decay into α and Deuteron

Abstract

The ⁶He β decay into α and deuteron is studied with different simple models and with a semi-microscopic model based on variational microscopic wave functions expanded in a three-center harmonic-oscillator basis. The latter approach allows us to show that this decay is quenched by a cancellation between the internal and halo contributions to the Gamow-Teller matrix element. An extreme sensitivity to the halo description up to distances as large as 15 fm is observed. Contrary to several available effective forces, the Volkov force V2 reproduces the measured β-decay transition probabilities.

Citing Article(s):

1. Progress of Theoretical Physics Vol. 126 No. 3 (2011) pp. 457-482

   A New Approach to Investigate Dineutron Correlation and Its Application to ¹⁰Be Fumiharu Kobayashi and Yoshiko Kanada-En'yo

2. Progress of Theoretical Physics Supplement No.142 (2001) pp. 97-156

   Microscopic Multicluster Description of Light Exotic Nuclei with Stochastic Variational Method on Correlated Gaussians Koji Arai, Yoko Ogawa, Yasuyuki Suzuki and Kálmán Varga

© Copyright (c) 1994 Progress of Theoretical Physics 1994