Pregled bibliografske jedinice broj: 590977
Fragmentation of spin-dipole strength in 90Zr and 208Pb
Fragmentation of spin-dipole strength in 90Zr and 208Pb // Physics letters. B, 706 (2012), 3/4; 477-481 doi:10.1016/j.physletb.2011.11.050 (međunarodna recenzija, članak, znanstveni)
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Naslov
Fragmentation of spin-dipole strength in 90Zr and 208Pb
Autori
Marketin, Tomislav ; Litvinova, Elena ; Vretenar, Dario ; Ring, Peter
Izvornik
Physics letters. B (0370-2693) 706
(2012), 3/4;
477-481
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Covariant density functional theory; Particle–vibration coupling; Nuclear charge-exchange excitations
Sažetak
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.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
119-1191005-1010 - Nuklearna struktura i nuklearna astrofizika (Vretenar, Dario, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
