The lifetime of the J=2+ state in 10C was measured using the Doppler Shift Attenuation Method following the inverse kinematics p(10B,n)10C reaction at 95 MeV. The 2+ state, at 3354 keV, has tau = 219\pm(7)stat \pm(10)sys fs corresponding to a B(E2) # of 8.8(3) e2fm4. This measurement,combined with that recently determined for 10Be (9.2(3) e2fm4), provides a unique challenge to abinitio calculations, testing the structure of these states, including the isospin symmetry of the wave functions. Quantum Monte Carlo calculations using realistic two- and three-nucleon Hamiltonians that reproduce the 10Be B(E2) value generally predict a larger 10C B(E2) probability but with considerable sensitivity to the admixture of different spatial symmetry components in the wave functions, and to the three-nucleon potential used.
@article{arxiv.1201.2960,
title = {On the lifetime of the 2+ state in 10C},
author = {E. A. McCutchan and C. J. Lister and Steven C. Pieper and R. B. Wiringa and D. Seweryniak and J. P. Greene and P. F. Bertone and M. P. Carpenter and C. J. Chiara and G. G?urdal and C. R. Hoffman and R. V. F. Janssens and T. L. Khoo and T. Lauritsen and S. Zhu},
journal= {arXiv preprint arXiv:1201.2960},
year = {2015}
}