Maqola

Charge radii of odd-A 191–211Po isotopes

M. D. SeliverstovInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumT. E. CocoliosCERN, CH-1211 Geneva 23, SwitzerlandW. DextersInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumA. N. AndreyevDepartment of Physics, University of York, York, YO10 5DD, United KingdomS. AntalicDepartment of Physics and Biophysics, Comenius University, 842 48 Bratislava, SlovakiaA. E. BarzakhPetersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, RussiaB. BastinInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumJ. BüscherInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumI. G. DarbyInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumД. В. ФедоровPetersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, RussiaV. N. FedoseyevCERN, CH-1211 Geneva 23, SwitzerlandK. T. FlanaganCentre de Spectrométrie Nucléaire et de Spectrométrie de Masse, F-91405 Orsay, FranceS. FranchooInstitut de Physique Nucléaire, F-91406 Orsay, FranceS. FritzscheDepartment of Physics, University of Oulu, P.O. Box 3000, Fin-90014, FinlandG. HuberInstitut für Physik, Johannes Gutenberg Universität, D-55099 Mainz, GermanyM. HuyseInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumM. KeupersInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumU. KösterInstitut Laue-Langevin, F-38042 Grenoble, FranceYu. KudryavtsevInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumB. A. MarshCERN, CH-1211 Geneva 23, SwitzerlandP. L. MolkanovPetersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, RussiaR. D. PageOliver Lodge Laboratory, University of Liverpool, L69 7ZE Liverpool, United KingdomA. M. SjödinCERN, CH-1211 Geneva 23, SwitzerlandI. StefanInstitut de Physique Nucléaire, F-91406 Orsay, FranceJ. Van de WalleInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumP. Van DuppenCERN, CH-1211 Geneva 23, SwitzerlandM. VenhartInstituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumS. G. ZemlyanoyJoint Institute of Nuclear Research, 141980 Dubna, Moscow region, Russia

Physics Letters Bjournal2013en

ABI

Annotatsiya

Isotope shifts have been measured for the odd-A polonium isotopes 191–211Po and changes in the nuclear mean square charge radii δ〈r2〉 have been deduced. The measurements were performed at CERN-ISOLDE using the in-source resonance-ionization spectroscopy technique. The combined analysis of these data and our recent results for even-A polonium isotopes indicates an onset of deformation already at 197,198Po, when going away from stability. This is significantly earlier than was suggested by previous theoretical and experimental studies of the polonium isotopes. Moreover and in contrast to the mercury isotopes, where a strong odd–even staggering of the charge radii of the ground states was observed by approaching the neutron mid-shell at N=104, no such effect is present in polonium down to 191Po. Consequently the charge radii of both isomeric and ground states of the odd-A polonium isotopes follow the same trend as the even-A isotopes.

Mavzular

Nuclear physics research studies Astronomical and nuclear sciences Atomic and Molecular Physics

Identifikatorlar

DOI: 10.1016/j.physletb.2013.01.043

Iqtiboslar va manbalar

0 ta iqtibos40 ta foydalanilgan manba

Koʻrsatkichlar — AkademScholar · Tez orada