No evidence of reduced collectivity in Coulomb-excited Sn isotopes

R. Kumar, M. Saxena, P. Doornenbal, A. Jhingan, A. Banerjee, R. K. Bhowmik, S. Dutt, R. Garg, C. Joshi, V. Mishra, P. J. Napiorkowski, S. Prajapati, P.-A. Söderström, N. Kumar, and H.-J. Wollersheim
Phys. Rev. C 96, 054318 – Published 20 November 2017

Abstract

In a series of Coulomb excitation experiments the first excited 2+ states in semimagic Sn112,116,118,120,122,124 isotopes were excited using a Ni58 beam at safe Coulomb energy. The B(E2; 0+2+) values were determined with high precision (3%) relative to Ni58 projectile excitation. These results disagree with previously reported B(E2) values [A. Jungclaus et al., Phys. Lett. B 695, 110 (2011).] extracted from Doppler-shift attenuation lifetime measurements, whereas the reported mass dependence of B(E2) values is very similar to a recent Coulomb excitation study [J. M. Allmond et al., Phys. Rev. C 92, 041303(R) (2015)]. The stable Sn isotopes, key nuclei in nuclear structure, show no evidence of reduced collectivity and we, thus, reconfirm the nonsymmetric behavior of reduced transition probabilities with respect to the midshell A=116.

  • Figure
  • Figure
  • Received 18 May 2017
  • Revised 6 September 2017

DOI:https://doi.org/10.1103/PhysRevC.96.054318

©2017 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

R. Kumar1, M. Saxena2, P. Doornenbal3, A. Jhingan1, A. Banerjee4, R. K. Bhowmik1, S. Dutt5, R. Garg1, C. Joshi6, V. Mishra7, P. J. Napiorkowski2, S. Prajapati8, P.-A. Söderström3, N. Kumar4, and H.-J. Wollersheim9

  • 1Inter-University Accelerator Centre, New Delhi 110067, India
  • 2Heavy Ion Laboratory, University of Warsaw, 02-093 Warsaw, Poland
  • 3RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
  • 4Department of Physics & Astrophysics, University of Delhi, Delhi 110007, India
  • 5Department of Physics, Aligarh Muslim University, Aligarh 202002, India
  • 6Department of Physics, M. S. University of Baroda, Vadodara 390002, India
  • 7Department of Physics, Banaras Hindu University, India
  • 8Department of Physics, Bareilly College, Bareilly 243005, India
  • 9Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 96, Iss. 5 — November 2017

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×