2011/12/01 by T. Marketin, Елена Литвинова, E. Litvinova +2
Chemistry · Engineering · Physics and Astronomy · #Advanced NMR Techniques and Applications #Nuclear physics research studies #Nuclear reactor physics and engineering #nucl-ex #nucl-th
paper · pdf · doi:10.1016/j.physletb.2011.11.050
published as Phys. Lett. B, 706, 477 (2012) · 15 pages, 3 figures
openalex publication_date 2011/12/01 · arxiv created 2012/06/08 · arxiv updated 2012/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
An extension of time-dependent covariant density functional theory that includes particle-vibration coupling is applied to the charge-exchange channel. Spin-dipole excitation spectra are calculated an compared to available data for 90Zr and 208Pb. A significant fragmentation is found for all three angular-momentum components of the spin-dipole strength as a result of particle-vibration coupling, as well as a shift of a portion of the strength to higher energy. A high-energy tail is formed in the strength distribution that linearly decreases with energy. Using a model-independent sum rule,the corresponding neutron skin thickness is estimated and shown to be consistent with values obtained at the mean-field level.