%0 Journal Article %1 ISI:000078088200003 %A Huxel, N %A von Brentano, P %A Eberth, J %A Enders, J %A Herzberg, RD %A von Neumann-Cosel, P %A Nicolay, N %A Pietralla, N %A Prade, H %A Rangacharyulu, C %A Reif, J %A Richter, A %A Schlegel, C %A Schwengner, R %A Skoda, S %A Thomas, HG %A Wiedenhover, I %A Winter, G %A Zilges, A %D 1999 %J Nuclear Physics A %K imported myown zilges %N 2 %P 239-261 %R 10.1016/S0375-9474(98)00610-1 %T Complete scissors mode strength in heavy deformed odd-mass nuclei: a case study of Ho-165 and Tm-169 %V 645 %X The low-energy dipole strength distributions in Ho-165 and Tm-169 have been studied in nuclear resonance fluorescence experiments at the S-DALINAC utilizing a Euroball Cluster detector. In the energy interval between 2.5 and 4.0 MeV, where the scissors mode is expected, 35 ground state transitions could be observed in Ho-165 and 53 in Tm-169. Assuming M1 character for all these transitions corresponds to Sigma B(M1) up arrow= 1.54(23) mu(N)(2) and Sigma B(M1) up arrow= 2.15(63) mu(N)(2) for Ho-165 and Tm-169, respectively. A statistical analysis is applied to the measured spectra which is capable of reconstructing the complete strength, including contributions of transitions below the observation limit, with the ratio between M1 and E1 excitations and their total strengths taken as an average over the even-mass neighbours. This results in summed M1 transition strengths of Sigma B(M1) up arrow= 3.54(-0.95)(+0.75) mu(N)(2) (Ho-165) and Sigma B(M1) up arrow= 3.36(-0.57)(+1.00) mu(N)(2) (Tm-169). The large variations of the summed dipole strength and the fragmentation in other deformed odd-mass nuclei can be reproduced by the same statistical ansatz. The total low-lying M1 strength in heavy deformed odd-mass nuclei is in agreement with the findings in the neighbouring even-mass nuclides as well as with sum-rule predictions. (C) 1999 Elsevier Science B.V.

@article{ISI:000078088200003, abstract = {The low-energy dipole strength distributions in Ho-165 and Tm-169 have been studied in nuclear resonance fluorescence experiments at the S-DALINAC utilizing a Euroball Cluster detector. In the energy interval between 2.5 and 4.0 MeV, where the scissors mode is expected, 35 ground state transitions could be observed in Ho-165 and 53 in Tm-169. Assuming M1 character for all these transitions corresponds to Sigma B(M1) up arrow= 1.54(23) mu(N)(2) and Sigma B(M1) up arrow= 2.15(63) mu(N)(2) for Ho-165 and Tm-169, respectively. A statistical analysis is applied to the measured spectra which is capable of reconstructing the complete strength, including contributions of transitions below the observation limit, with the ratio between M1 and E1 excitations and their total strengths taken as an average over the even-mass neighbours. This results in summed M1 transition strengths of Sigma B(M1) up arrow= 3.54(-0.95)(+0.75) mu(N)(2) (Ho-165) and Sigma B(M1) up arrow= 3.36(-0.57)(+1.00) mu(N)(2) (Tm-169). The large variations of the summed dipole strength and the fragmentation in other deformed odd-mass nuclei can be reproduced by the same statistical ansatz. The total low-lying M1 strength in heavy deformed odd-mass nuclei is in agreement with the findings in the neighbouring even-mass nuclides as well as with sum-rule predictions. (C) 1999 Elsevier Science B.V.}, added-at = {2019-11-20T10:09:48.000+0100}, author = {Huxel, N and von Brentano, P and Eberth, J and Enders, J and Herzberg, RD and von Neumann-Cosel, P and Nicolay, N and Pietralla, N and Prade, H and Rangacharyulu, C and Reif, J and Richter, A and Schlegel, C and Schwengner, R and Skoda, S and Thomas, HG and Wiedenhover, I and Winter, G and Zilges, A}, biburl = {https://www.bibsonomy.org/bibtex/2ef36d43c5f5b2e94a1e05941e7000e62/ikpcologne}, doi = {10.1016/S0375-9474(98)00610-1}, eissn = {1873-1554}, interhash = {73795046ac4c6e021235690368bda189}, intrahash = {ef36d43c5f5b2e94a1e05941e7000e62}, issn = {0375-9474}, journal = {Nuclear Physics A}, keywords = {imported myown zilges}, month = {JAN 11}, number = 2, orcid-numbers = {Enders, Joachim/0000-0002-8441-378X Pietralla, Norbert/0000-0002-4797-3032 Schwengner, Ronald/0000-0002-7620-8882 von Neumann-Cosel, Peter/0000-0002-0256-5940}, pages = {239-261}, researcherid-numbers = {Enders, Joachim/B-5501-2009 Herzberg, Rolf-Dietmar/E-1558-2011 Pietralla, Norbert/L-8465-2017 Schwengner, Ronald/Q-5959-2017 Zilges, Andreas/G-9984-2011}, timestamp = {2019-11-20T10:09:48.000+0100}, title = {Complete scissors mode strength in heavy deformed odd-mass nuclei: a case study of Ho-165 and Tm-169}, unique-id = {ISI:000078088200003}, volume = 645, year = 1999 }