Open AccessEffects of Phonon--Phonon Coupling on Properties of Pygmy Resonance in $^{40-48}$Ca
Author(s) -
N. N. Arsenyev,
A. P. Severyukhin,
V. V. Voronov,
Nguyen Van Giai
Publication year - 2017
Publication title -
acta physica polonica b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.331
H-Index - 63
eISSN - 1509-5770
pISSN - 0587-4254
DOI - 10.5506/aphyspolb.48.553
Subject(s) - physics , phonon , coupling (piping) , resonance (particle physics) , condensed matter physics , quantum mechanics , mechanical engineering , engineering
Starting from the Skyrme interaction SLy5, we study the effect of phonon-phonon coupling on the low-energy electric dipole response in Ca40-48. This effect leads to the fragmentation of the E1 strength to a lower energy and improves the agreement with available experimental data.
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