%0 Journal Article %1 ISI:000333506400048 %A Derya, V. %A Savran, D. %A Endres, J. %A Harakeh, M. N. %A Hergert, H. %A Kelley, J. H. %A Papakonstantinou, P. %A Pietralla, N. %A Ponomarev, V. Yu. %A Roth, R. %A Rusev, G. %A Tonchev, A. P. %A Tornow, W. %A Wortche, H. J. %A Zilges, A. %D 2014 %J Physics Letters B %K imported myown zilges %P 288-292 %R 10.1016/j.physletb.2014.01.050 %T Isospin properties of electric dipole excitations in Ca-48 %V 730 %X Two different experimental approaches were combined to study the electric dipole strength in the doubly-magic nucleus Ca-48 below the neutron threshold. Real-photon scattering experiments using bremsstrahlung up to 9.9 MeV and nearly mono-energetic linearly polarized photons with energies between 6.6 and 9.51 MeV provided strength distribution and parities, and an (alpha, alpha'gamma) experiment at E-alpha = 136 MeV gave cross sections for an isoscalar probe. The unexpected difference observed in the dipole response is compared to calculations using the first-order random-phase approximation and points to an energy-dependent isospiu character. A strong isoscalar state at 7.6 MeV was identified for the first time supporting a recent theoretical prediction. (C) 2014 The Authors. Published by Elsevier B.V.

@article{ISI:000333506400048, abstract = {Two different experimental approaches were combined to study the electric dipole strength in the doubly-magic nucleus Ca-48 below the neutron threshold. Real-photon scattering experiments using bremsstrahlung up to 9.9 MeV and nearly mono-energetic linearly polarized photons with energies between 6.6 and 9.51 MeV provided strength distribution and parities, and an (alpha, alpha'gamma) experiment at E-alpha = 136 MeV gave cross sections for an isoscalar probe. The unexpected difference observed in the dipole response is compared to calculations using the first-order random-phase approximation and points to an energy-dependent isospiu character. A strong isoscalar state at 7.6 MeV was identified for the first time supporting a recent theoretical prediction. (C) 2014 The Authors. Published by Elsevier B.V.}, added-at = {2019-11-20T10:09:48.000+0100}, author = {Derya, V. and Savran, D. and Endres, J. and Harakeh, M. N. and Hergert, H. and Kelley, J. H. and Papakonstantinou, P. and Pietralla, N. and Ponomarev, V. Yu. and Roth, R. and Rusev, G. and Tonchev, A. P. and Tornow, W. and Wortche, H. J. and Zilges, A.}, biburl = {https://www.bibsonomy.org/bibtex/2d5552e08273899396a545351dde0d057/ikpcologne}, doi = {10.1016/j.physletb.2014.01.050}, eissn = {1873-2445}, interhash = {fad02fe4524c5dd0a0a9aaa2364a2ae8}, intrahash = {d5552e08273899396a545351dde0d057}, issn = {0370-2693}, journal = {Physics Letters B}, keywords = {imported myown zilges}, month = {MAR 7}, orcid-numbers = {Papakonstantinou, Panagiota/0000-0002-7119-6667 Hergert, Heiko/0000-0003-0520-0856 Pietralla, Norbert/0000-0002-4797-3032 kelley, john/0000-0001-8578-2723}, pages = {288-292}, researcherid-numbers = {Roth, Robert/B-6502-2008 Papakonstantinou, Panagiota/B-6799-2008 Hergert, Heiko/G-9597-2016 Pietralla, Norbert/L-8465-2017 Ponomarev, Vladimir Yu./K-6344-2018}, timestamp = {2019-11-20T10:09:48.000+0100}, title = {Isospin properties of electric dipole excitations in Ca-48}, unique-id = {ISI:000333506400048}, volume = 730, year = 2014 }