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Title: Precise Lifetime Measurements in Light Nuclei for Benchmarking Modern Ab-initio Nuclear Structure Models

A new generation of ab-initio calculations, based on realistic two- and three-body forces, is having a profound impact on our view of how nuclei work. To improve the numerical methods, and the parameterization of 3-body forces, new precise data are needed. Electromagnetic transitions are very sensitive to the dynamics which drive mixing between configurations. We have made a series of precise (< 3%) measurements of electromagnetic transitions in the A=10 nuclei {sup 10}C and {sup 10}Be by using the Doppler Shift Attenuation method carefully. Many interesting features can be reproduced including the strong α clustering. New measurements on {sup 8}Be and {sup 12}Be highlight the interplay between the alpha clusters and their valence neutrons.
Authors:
 [1] ;  [2]
  1. Department of Physics, University of Massachusetts, Lowell, Lowell MA 01854 (United States)
  2. National Nuclear Data Center, Brookhaven National Laboratory, Upton, NY 11973-5000 (United States)
Publication Date:
OSTI Identifier:
22436691
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Data Sheets; Journal Volume: 120; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BENCHMARKS; BERYLLIUM 10; BERYLLIUM 12; BERYLLIUM 8; CARBON 10; DSA METHOD; ENERGY-LEVEL TRANSITIONS; HALF-LIFE; LIFETIME; NEUTRONS; NUCLEAR STRUCTURE