%0 Journal Article %1 ISI:000369320900004 %A Pai, H. %A Beck, T. %A Beller, J. %A Beyer, R. %A Bhike, M. %A Derya, V. %A Gayer, U. %A Isaak, J. %A Krishichayan, %A Kvasil, J. %A Loeher, B. %A Nesterenko, V. O. %A Pietralla, N. %A Martinez-Pinedo, G. %A Mertes, L. %A Ponomarev, V. Yu %A Reinhard, P. G. %A Repko, A. %A Ries, P. C. %A Romig, C. %A Savran, D. %A Schwengner, R. %A Tornow, W. %A Werner, V. %A Wilhelmy, J. %A Zilges, A. %A Zweidinger, M. %D 2016 %J Phys. Rev. C %K imported myown zilges %N 1 %R 10.1103/PhysRevC.93.014318 %T Magnetic dipole excitations of Cr-50 %V 93 %X The low-lying M1 strength of the open-shell nucleus Cr-50 has been studied with the method of nuclear resonance fluorescence up to 9.7 MeV using bremsstrahlung at the superconducting Darmstadt linear electron accelerator S-DALINAC and Compton backscattered photons at the High Intensity gamma-ray Source (HI gamma S) facility between 6 and 9.7 MeV of the initial photon energy. Fifteen 1(+) states have been observed between 3.6 and 9.7 MeV. Following our analysis the lowest 1(+) state at 3.6 MeV can be considered as an isovector orbital mode with some spin admixture. The obtained results generally match the estimations and trends typical for the scissors-like mode. Detailed calculations within the Skyrme quasiparticle random-phase-approximation method and the large-scale shell model justify our conclusions. The calculated distributions of the orbital current for the lowest 1(+)-state suggest the schematic view of Lipparini and Stringari (isovector rotation-like oscillations inside the rigid surface) rather than the scissors-like picture of Lo Iudice and Palumbo. The spin M1 resonance is shown to be mainly generated by spin-flip transitions between the orbitals of the fp shell.

@article{ISI:000369320900004, abstract = {The low-lying M1 strength of the open-shell nucleus Cr-50 has been studied with the method of nuclear resonance fluorescence up to 9.7 MeV using bremsstrahlung at the superconducting Darmstadt linear electron accelerator S-DALINAC and Compton backscattered photons at the High Intensity gamma-ray Source (HI gamma S) facility between 6 and 9.7 MeV of the initial photon energy. Fifteen 1(+) states have been observed between 3.6 and 9.7 MeV. Following our analysis the lowest 1(+) state at 3.6 MeV can be considered as an isovector orbital mode with some spin admixture. The obtained results generally match the estimations and trends typical for the scissors-like mode. Detailed calculations within the Skyrme quasiparticle random-phase-approximation method and the large-scale shell model justify our conclusions. The calculated distributions of the orbital current for the lowest 1(+)-state suggest the schematic view of Lipparini and Stringari (isovector rotation-like oscillations inside the rigid surface) rather than the scissors-like picture of Lo Iudice and Palumbo. The spin M1 resonance is shown to be mainly generated by spin-flip transitions between the orbitals of the fp shell.}, added-at = {2019-11-20T10:09:48.000+0100}, article-number = {014318}, author = {Pai, H. and Beck, T. and Beller, J. and Beyer, R. and Bhike, M. and Derya, V. and Gayer, U. and Isaak, J. and Krishichayan and Kvasil, J. and Loeher, B. and Nesterenko, V. O. and Pietralla, N. and Martinez-Pinedo, G. and Mertes, L. and Ponomarev, V. Yu and Reinhard, P. G. and Repko, A. and Ries, P. C. and Romig, C. and Savran, D. and Schwengner, R. and Tornow, W. and Werner, V. and Wilhelmy, J. and Zilges, A. and Zweidinger, M.}, biburl = {https://www.bibsonomy.org/bibtex/274ff68dca56f8ecf659843c5c953efe6/ikpcologne}, doi = {10.1103/PhysRevC.93.014318}, eissn = {2469-9993}, interhash = {e28e6cc878d5ad392e5551e342f36bec}, intrahash = {74ff68dca56f8ecf659843c5c953efe6}, issn = {2469-9985}, journal = {Phys. Rev. C}, keywords = {imported myown zilges}, month = {JAN 25}, number = 1, orcid-numbers = {Schwengner, Ronald/0000-0002-7620-8882 Werner, Volker/0000-0003-4001-0150 Martinez-Pinedo, Gabriel/0000-0002-3825-0131 Pietralla, Norbert/0000-0002-4797-3032 Kvasil, Jan/0000-0001-9775-1895 Friman-Gayer, Udo/0000-0003-2590-5052 Repko, Anton/0000-0001-6886-708X}, researcherid-numbers = {Schwengner, Ronald/Q-5959-2017 Werner, Volker/C-1181-2017 Martinez-Pinedo, Gabriel/A-1915-2013 Pietralla, Norbert/L-8465-2017 Kvasil, Jan/K-5343-2015 Ponomarev, Vladimir Yu./K-6344-2018}, timestamp = {2019-11-20T10:09:48.000+0100}, title = {Magnetic dipole excitations of Cr-50}, unique-id = {ISI:000369320900004}, volume = 93, year = 2016 }