Статья

Excitation strengths in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mn>109</mml:mn></mml:msup></mml:math>Sn: Single-neutron and collective excitations near<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mn>100</mml:mn></mml:msup></mml:math>Sn

Douglas D. DiJulioPhysics Department, Lund University, Box 118, SE-221 00 Lund, SwedenJ. CederkällPhysics Department, Lund University, Box 118, SE-221 00 Lund, SwedenC. FahlanderPhysics Department, Lund University, Box 118, SE-221 00 Lund, SwedenA. EkströmNuclear physicsM. Hjorth‐JensenDepartment of Physics and Center of Mathematics for Applications, University of Oslo, N-0316, Oslo, NorwayM. AlbersInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyV. BildsteinPhysik Department E12, Technische Universitt Mnchen, D-85748 Garching, GermanyA. BlazhevInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyI. G. DarbyInstituut voor Kern-en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, BelgiumT. DavinsonDepartment of Physics and Astronomy, University of Edinburgh, Edinburgh, United KingdomH. De WitteInstituut voor Kern-en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, BelgiumJ. DirikenInstituut voor Kern-en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, BelgiumC. FransenInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyK. GeibelInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyR. GernhäuserTechnical University of MunichA. GörgenUniversity of Oslo#TAB#H. HessInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyJ. IwanickiHeavy Ion Laboratory, University of Warsaw, Warsaw, PolandR. LutterFakultt fr Physik, Ludwig-Maximilians-Universitt Mnchen, D-85748 Garching, GermanyP. ReiterInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyM. ScheckOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomM. SeidlitzInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyS. SiemDepartment of Physics, University of Oslo, Oslo, NorwayJ. TaproggeInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyG. M. TvetenDepartment of Physics, University of Oslo, Oslo, NorwayJ. Van de WallePH Department, CERN 1211, Geneva 23, SwitzerlandD. VoulotAB Department, CERN 1211, Geneva 23, SwitzerlandN. WarrInstitute of Nuclear Physics, University of Cologne, Germany, D-50937 Cologne, GermanyF. WenanderAB Department, CERN 1211, Geneva 23, SwitzerlandK. WimmerPhysik Department E12, Technische Universitt Mnchen, D-85748 Garching, Germany

Physical Review Cjournal2012lv

ABI

Аннотация

A set of $B(E2)$ values for the low-lying excited states in the radioactive isotope ${}^{109}$Sn were deduced from a Coulomb excitation experiment. The 2.87-MeV/$u$ radioactive beam was produced at the REX-ISOLDE facility at CERN and was incident on a secondary ${}^{58}$Ni target. The $B(E2)$ values were determined using the known ${2}^{+}\ensuremath{\rightarrow}{0}^{+}$ reduced transition probability in ${}^{58}$Ni as normalization with the semiclassical Coulomb excitation code gosia2. The transition probabilities are compared to shell-model calculations based on a realistic nucleon-nucleon interaction and the predictions of a simple core-excitation model. This measurement represents the first determination of multiple $B(E2)$ values in a light Sn nucleus using the Coulomb excitation technique with low-energy radioactive beams. The results provide constraints for the single-neutron states relative to ${}^{100}$Sn and also indicate the importance of both single-neutron and collective excitations in the light Sn isotopes.

Темы

Nuclear physics research studies Nuclear Physics and Applications Nuclear reactor physics and engineering

Идентификаторы

DOI: 10.1103/physrevc.86.031302

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