%0 Journal Article %1 ISI:000284407400008 %A Endres, J. %A Litvinova, E. %A Savran, D. %A Butler, P. A. %A Harakeh, M. N. %A Harissopulos, S. %A Herzberg, R. D. %A Kruecken, R. %A Lagoyannis, A. %A Pietralla, N. %A Ponomarev, V. Yu %A Popescu, L. %A Ring, P. %A Scheck, M. %A Sonnabend, K. %A Stoica, V. I. %A Wortche, H. J. %A Zilges, A. %D 2010 %J Physical Review Letters %K imported myown zilges %N 21 %R 10.1103/PhysRevLett.105.212503 %T Isospin Character of the Pygmy Dipole Resonance in Sn-124 %V 105 %X The pygmy dipole resonance has been studied in the proton-magic nucleus Sn-124 with the (alpha, alpha'gamma) coincidence method at E-alpha = 136 MeV. The comparison with results of photon-scattering experiments reveals a splitting into two components with different structure: one group of states which is excited in (alpha, alpha'gamma) as well as in (gamma, gamma') reactions and a group of states at higher energies which is only excited in (gamma, gamma') reactions. Calculations with the self-consistent relativistic quasiparticle time-blocking approximation and the quasiparticle phonon model are in qualitative agreement with the experimental results and predict a low-lying isoscalar component dominated by neutron-skin oscillations and a higher-lying more isovector component on the tail of the giant dipole resonance.

@article{ISI:000284407400008, abstract = {The pygmy dipole resonance has been studied in the proton-magic nucleus Sn-124 with the (alpha, alpha'gamma) coincidence method at E-alpha = 136 MeV. The comparison with results of photon-scattering experiments reveals a splitting into two components with different structure: one group of states which is excited in (alpha, alpha'gamma) as well as in (gamma, gamma') reactions and a group of states at higher energies which is only excited in (gamma, gamma') reactions. Calculations with the self-consistent relativistic quasiparticle time-blocking approximation and the quasiparticle phonon model are in qualitative agreement with the experimental results and predict a low-lying isoscalar component dominated by neutron-skin oscillations and a higher-lying more isovector component on the tail of the giant dipole resonance.}, added-at = {2019-11-20T10:09:48.000+0100}, article-number = {212503}, author = {Endres, J. and Litvinova, E. and Savran, D. and Butler, P. A. and Harakeh, M. N. and Harissopulos, S. and Herzberg, R. D. and Kruecken, R. and Lagoyannis, A. and Pietralla, N. and Ponomarev, V. Yu and Popescu, L. and Ring, P. and Scheck, M. and Sonnabend, K. and Stoica, V. I. and Wortche, H. J. and Zilges, A.}, biburl = {https://www.bibsonomy.org/bibtex/2bbc048062d083d1b11f12a82ce572231/ikpcologne}, doi = {10.1103/PhysRevLett.105.212503}, interhash = {14e12bfacd24d36f9117009a52f7e578}, intrahash = {bbc048062d083d1b11f12a82ce572231}, issn = {0031-9007}, journal = {Physical Review Letters}, keywords = {imported myown zilges}, month = {NOV 19}, number = 21, orcid-numbers = {Kruecken, Reiner/0000-0002-2755-8042 Kruecken, Reiner/0000-0002-2755-8042 Scheck, Marcus/0000-0002-9624-3909 Harissopulos, Sotirios/0000-0003-4022-7595 Popescu, Lucia/0000-0003-1678-4260 Pietralla, Norbert/0000-0002-4797-3032 Butler, Peter/0000-0001-6080-9205 Litvinova, Elena/0000-0003-2115-8926}, researcherid-numbers = {Ring, Peter/O-1638-2015 Herzberg, Rolf-Dietmar/E-1558-2011 Kruecken, Reiner/A-1640-2013 Kruecken, Reiner/N-9449-2019 Zilges, Andreas/G-9984-2011 Scheck, Marcus/M-2839-2018 Harissopulos, Sotirios/G-9541-2011 Ponomarev, Vladimir Yu./K-6344-2018 Popescu, Lucia/F-9964-2011 Pietralla, Norbert/L-8465-2017}, timestamp = {2019-11-20T10:09:48.000+0100}, title = {Isospin Character of the Pygmy Dipole Resonance in Sn-124}, unique-id = {ISI:000284407400008}, volume = 105, year = 2010 }