arXiv
Open Access
2012
The nuclear electric polarizability of 6He
Raymond Goerke
Sonia Bacca
Nir Barnea
Abstrak
We present an estimate of the nuclear electric polarizability of the 6He halo nucleus based on six-body microscopic calculations. Wave functions are obtained from semi-realistic two-body interactions using the hyperspherical harmonics expansion method. The polarizability is calculated as a sum rule of the dipole response function using the Lanczos algorithm and also by integrating the photo-absorption cross section calculated via the Lorentz integral transform method. We obtain alpha_E=1.00(14) fm^3, which is much smaller than the published value 1.99(40) fm^3 extracted from experimental data. This points towards a potential disagreement between microscopic theories and experimental observations.
Penulis (3)
R
Raymond Goerke
S
Sonia Bacca
N
Nir Barnea
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2012
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