New lifetime measurements in the stable semimagic Sn isotopes using the Doppler-shift attenuation technique

Summary, in English

Precise measurements of lifetimes in the picosecond range of excited states in the stable even-A Sn isotopes ^{112,114,116,122}Sn have been performed using the Doppler shift attenuation technique. For the first excited 2⁺ states in ¹¹²Sn, ¹¹⁴Sn and ¹¹⁶Sn the E2 transition strengths deduced from the measured lifetimes are in disagreement with the previously adopted values. They indicate a shallow minimum at N = 66 in contrast to the maximum at mid-shell predicted by modern shell model calculations.

• Author: A. Jungclaus; J. Walker; J. Leske; K. H. Speidel; A. E. Stuchbery; M. East; P. Boutachkov; J. Cederkäll; P. Doornenbal; J. L. Egido; A. Ekström; J. Gerl; R. Gernhäuser; N. Goel; M. Górska; I. Kojouharov; P. Maier-Komor; V. Modamio; F. Naqvi; N. Pietralla; S. Pietri; W. Prokopowicz; H. Schaffner; R. Schwengner; H. J. Wollersheim
• Department/s: Nuclear physics
• Publishing year: 2011
• Language: English
• Publication/Series: Journal of Physics: Conference Series
• Volume: 312
• Issue: SECTION 9
• Links: http://dx.doi.org/10.1088/1742-6596/312/9/092033
• Document type: Journal article
• Publisher: IOP Publishing
• Status: Published
• ISBN/ISSN/Other: ISSN: 1742-6588