Academic Journal
Spin, quadrupole moment, and deformation of the magnetic-rotational band head in Pb-193
| العنوان: | Spin, quadrupole moment, and deformation of the magnetic-rotational band head in Pb-193 |
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| المؤلفون: | Balabanski, D.L., Ionescu-Bujor, M., Iordachescu, A., Bazzacco, D., Brandolini, F., Bucurescu, D., Chmel, S., Danchev, M., de Poli, M., Georgiev, G., Haas, H., Hubel, H., Marginean, N., Menegazzo, R., Neyens, G., Pavan, P., Alvarez, C.R., Ur, C.A., Vyvey, K., Frauendorf, S. |
| المساهمون: | Instituut voor Kern-en Stralingsfysica (IKS), Catholic University of Leuven = Katholieke Universiteit Leuven (KU Leuven), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (INFN, Sezione di Padova), Istituto Nazionale di Fisica Nucleare (INFN), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 2469-9985. |
| بيانات النشر: | HAL CCSD American Physical Society |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | STATES, NEUTRON-DEFICIENT PB, SHEARS MECHANISM, DIPOLE BANDS, NUCLEI, ISOTOPES, PB-200, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] |
| الوصف: | he spectroscopic quadrupole moment of the T-1/2 = 9.4(5) ns isomer in Pb-193 at an excitation energy E-ex = (2585 + x) keV is measured by the time-differential perturbed angular distribution method as vertical bar Q(s)vertical bar = 2.6(3) e b. Spin and parity I-pi = 27/2(-) are assigned to it based on angular distribution measurements. This state is the band head of a magnetic-rotational band, described by the coupling of a neutron hole in the 1i(13/2) subshell with the (3s(1/2)(-2)1h(9/2)1i(13/2))(11-) proton excitation. The pairing-plus-quadrupole tilted-axis cranking calculations reproduce the measured quadrupole moment with a moderate oblate deformation epsilon(2) = -0.11, similar to that of the 11(-)proton intruder states, which occur in the even-even Pb nuclei in the region. This is the first direct measurement of a quadrupole moment and thus of the deformation of a magnetic-rotational band head. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | in2p3-00570269; https://hal.in2p3.fr/in2p3-00570269 |
| DOI: | 10.1103/PhysRevC.83.014304 |
| الاتاحة: | https://hal.in2p3.fr/in2p3-00570269 https://doi.org/10.1103/PhysRevC.83.014304 |
| رقم الانضمام: | edsbas.CB4B49DD |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevC.83.014304 |
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