记笔记

Breaking the Geiger-Nuttall rule in the lightest Po isotopes

A.N. AndreyevS. AntalicD. AckermannL. BiancoD. CullenI.G. DarbyS. FranchooF. P. HeβbergerS. HofmannM. HuyseI. KojouharovB. KindlerP. KuusiniemiA.-P. LeppnenS.R. LesherB. LommelR. MannG.MünzenbergK. NishioR.D. PagePakarinenJ.J. ResslerS. SaroB.StreicherB. SulignanoJ. ThomsonP. Van DuppenD. WisemanR. Wyss

Department of Chemistry,Simon Fraser University,Burnaby BC Canada 5A-1S6 TRIUMF,4004 Wesbrook Mall,Vancouver BC,V6T 2A3,CanadaDepartment of Nuclear Physics and Biophysics,Comenius University,Bratislava,SlovakiaGesellschaft für Schwerionenforschung Planckstrasse 1,D-64291 Darmstadt Germanv Inst.f. Physik,Johannes Gutenberg-University,D-55099 Mainz,GermanyDepartment of Physics,University of Liverpool,Liverpool L69 7ZE,UKDepartent of Physics and Astronomy,University of Manchester,Manchester,UKDepartment of Physics,University of Liverpool,Liverpool L69 7ZE,UKIPN Orsay,F-91406 Orsay Cedex FranceGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt GermanyGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt Germany Physikalisches Institut,J.W. Goethe-Universitt,D-60054 Frankfurt,GermanyInstituut voor Kern-en Stralingsfysica,University of Leuven,B-3001 Leuven,elgiumGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt GermanyGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt GermanyGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt GermanyJYFL,University of Jyvaskyla,FinlandInstituut voor Kern-en Stralingsfysica,University of Leuven,B-3001 Leuven,elgiumGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt GermanyGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt GermanyGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt Germany Inst. f. Physik,Johannes Gutenberg-University,D-55099 Mainz,GermanyGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt Germany Advanced Science Research Center,Japan Atomic Energy Agency,Tokai,JapanDepartment of Physics,University of Liverpool,Liverpool L69 7ZE,UKJYFL,University of Jyvaskyla,FinlandDepartment of Chemistry,Simon Fraser University,Burnaby BC Canada 5A-1S6Department of Nuclear Physics and Biophysics,Comenius University,Bratislava,SlovakiaDepartment of Nuclear Physics and Biophysics,Comenius University,Bratislava,SlovakiaGesellschaft für Schwerionenforschung,Planckstrasse 1,D-64291 Darmstadt GermanyDepartment of Physics,University of Liverpool,Liverpool L69 7ZE,UKInstituut voor Kern-en Stralingsfysica,University of Leuven,B-3001 Leuven,elgiumDepartment of Physics,University of Liverpool,Liverpool L69 7ZE,UKDepartment of Physics,Royal Institute of Technology,104 05 Stockholm,Sweden

摘要：<正>Alpha decay, or spontaneous emission of an α particle by anucleus, played a very important role in the development of modern nuclear physics and chemistry. The gross features of △L=0 （no angular momentum change） α transitions （e.g. between the spin-parity Iπ=0+ ground states of even-even nuclei） are reflected in the so-called Geiger-Nuttall rule, discovered in 1911, where a quasi-linear dependence is observed between the logT1/2 and Eα-1/2. Until recently no exception from this linear dependence was observed in any a-decaying nuclei, including the polonium isotopes, which are often used as text-book examples for the discussion of α-decay properties.

会议名称：

International Conference on Nuclear Structure Physics

会议时间：

2006-06

会议地点：

中国上海