skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: First-excited state g factor of Te 136 by the recoil in vacuum method

Journal Article · · Physical Review C
 [1];  [2];  [3];  [2];  [4];  [4];  [2];  [5];  [2]
  1. Australian National Univ., Canberra, ACT (Australia)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. St. Kliment Ohridski Univ. of Sofia (Bulgaria); Univ. of Tennessee, Knoxville, TN (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  5. Univ. of Tennessee, Knoxville, TN (United States); Univ. of Oxford (United Kingdom)

The g factor of the first 2+ state of radioactive 136Te with two valence protons and two valence neutrons beyond double-magic 132Sn has been measured by the recoil in vacuum (RIV) method. The lifetime of this state is an order of magnitude longer than the lifetimes of excited states recently measured by the RIV method in Sn and Te isotopes, requiring a new evaluation of the free-ion hyperfine interactions and methodology used to determine the g factor. In this paper, the calibration data are reported and the analysis procedures are described in detail. The resultant g factor has a similar magnitude to the g factors of other nuclei with an equal number of valence protons and neutrons in the major shell. However, an unexpected trend is found in the g factors of the N = 84 isotones, which decrease from 136Te to 144Nd. Finally, shell model calculations with interactions derived from the CD Bonn potential show good agreement with the g factors and E2 transition rates of 2+ states around 132Sn, confirming earlier indications that 132Sn is a good doubly magic core.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); Australian Research Council (ARC) (Australia)
Grant/Contract Number:
AC05-00OR22725; FG02-96ER40963; DP0773273
OSTI ID:
1394369
Alternate ID(s):
OSTI ID: 1373133
Journal Information:
Physical Review C, Vol. 96, Issue 1; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (76)

Coulomb excitation of neutron-rich 138,140,142Xe at REX-ISOLDE journal November 2007
Restoration of the N = 82 Shell Gap from Direct Mass Measurements of Sn 132 , 134 journal February 2008
Coulomb excitation studies of 132,134Sn journal December 2004
Precise Atomic Mass Values near S 132 n : The Resolution of a Puzzle journal March 1999
Shell-model calculations and realistic effective interactions journal January 2009
A priori calculations of hyperfine interactions in highly ionized atoms: g-factor measurements on aligned pico-second states populated in nuclear reactions journal April 2010
Excited state g factors in Te 125 journal November 2009
Precession measurements following Coulomb excitation with oxygen ions (VI). Hyperfine interactions of nuclei in highly ionized atoms journal December 1968
Time-dependent Monte Carlo calculations of recoil-in-vacuum g -factor data for 122 , 126 , 130 , 132 Te journal April 2013
g-Factor of the first 2+ state in theN=82 nucleus138Ba journal September 1987
Electromagnetic Moments of Radioactive Te 136 and the Emergence of Collectivity 2 p 2 n Outside of Double-Magic Sn 132 journal March 2017
Nuclear Data Sheets for A = 122 journal March 2007
Structure of the N =84 isotones 146 138 Sm journal October 1992
Similarity of nuclear structure in the Sn 132 and Pb 208 regions: Proton-neutron multiplets journal August 2009
Shell-model calculations in 132 Sn and 208 Pb regions with low-momentum interactions journal May 2009
Investigation into the semimagic nature of the tin isotopes through electromagnetic moments journal October 2015
g factors of first 2 + states of neutron-rich Xe, Ba, and Ce isotopes journal March 2009
Precision Mass Measurements beyond Sn 132 : Anomalous Behavior of Odd-Even Staggering of Binding Energies journal July 2012
Evidence for the doubly magic structure of123Sn journal March 1982
Transient field g factor and mean-life measurements with a rare isotope beam of 126 Sn journal September 2012
Magnetic moment measurements of picosecond states: New results and open problems journal March 1987
Magnetic moments of 2 1 + states in 124 , 126 , 128 Sn journal May 2013
Calibration of Recoil-In-Vacuum attenuations from first principles: comparison with recent experimental data on Fe isotopes journal December 2014
Double-Magic Nature of Sn 132 and Pb 208 through Lifetime and Cross-Section Measurements journal April 2014
Coulomb excitation and transfer reactions with rare neutron-rich isotopes journal April 2005
Free-ion hyperfine fields and magnetic-moment measurements on radioactive beams: progress and outlook journal November 2012
First Results from the CARIBU Facility: Mass Measurements on the r -Process Path journal August 2013
Measurement of g factors of excited states in radioactive beams by the transient field technique: 132Te journal June 2008
The magic nature of 132Sn explored through the single-particle states of 133Sn journal May 2010
Magnetic moments of the 2 1 + states around Sn 132 journal April 2005
Perturbed γ–γ correlations from oriented nuclei and static moment measurements I: formalism and principles
  • Stuchbery, Andrew E.; Robinson, Martyn P.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 485, Issue 3 https://doi.org/10.1016/S0168-9002(01)02114-3
journal June 2002
Detailed Spectroscopy of the Doubly Closed Shell Nucleus S n : 132 First Observation of Octupole Collectivity journal October 1994
Spin dependence of d5/2 neutron configurations in the wave functions of 92,94Zr from g-factor measurements journal November 1999
Anomalous behavior of 2 + excitations around 132 Sn journal November 2002
Single particle degrees of freedom in the transition from deformed to spherical Nd nuclei journal January 2001
Evidence for proton excitations in 1 3 0 , 1 3 2 , 1 3 4 , 1 3 6 Xe isotopes from measurements of g factors of 2 1 + and 4 1 + states journal January 2002
Spectroscopic calculations of cluster nuclei above double shell closures with a new local potential journal January 2013
Relative g -factor measurements in the stable Te isotopes journal September 2007
Structure of the levels in the doubly magic nucleus 50132Sn82 journal March 1980
First Nuclear Moment Measurement with Radioactive Beams by the Recoil-in-Vacuum Technique: The g Factor of the 2 1 + State in Te 132 journal May 2005
Recoil in vacuum for Te ions: Calibration, models, and applications to radioactive-beam g -factor measurements journal September 2007
Electromagnetic properties of the 2 1 + state in 134 Te: Influence of core excitation on single-particle orbits beyond 132 Sn journal November 2013
Nuclear Data Sheets for A = 130 journal May 2001
Impact of variational space on M 1 transitions between first and second quadrupole excitations in Te 132 , 134 , 136 journal July 2014
g factors of the first 2 + states in the transitional 9 2 , 9 4 , 9 6 , 9 8 , 1 0 0 Mo isotopes and the onset of collectivity journal February 2001
A panorama of excited-state g -factor measurements: advancing moment measurements on radioactive beams journal September 2012
Systematics of g factors in the neutron-rich 142 , 144 , 146 Ba isotopes journal March 1988
Magic Nucleus S 132 n and Its One-Neutron-Hole Neighbor S 131 n journal July 2001
Magnetic moments of low-lying states in Rh 103 , 111 , 113 Cd, and 123 , 125 Te journal July 1989
Coulomb Excitation of Radioactive 1 3 2 , 1 3 4 , 1 3 6 Te Beams and the Low B ( E 2 ) of 136 Te journal May 2002
Nuclear Data Sheets for A = 124 journal July 2008
The first excited state in the doubly-closed-shell nucleus 132Sn populated in the 0.12 s β−-decay of 132In journal April 1973
Structure of exotic nuclei around double shell closures journal July 2007
Performance of the Recoil Mass Spectrometer and its detector systems at the Holifield Radioactive Ion Beam Facility
  • Gross, C. J.; Ginter, T. N.; Shapira, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 450, Issue 1 https://doi.org/10.1016/S0168-9002(00)00159-5
journal August 2000
Coulomb excitation of 124 , 126 , 128 Sn journal December 2011
Nuclear Data Sheets for A = 126 journal November 2002
Nuclear deorientation for heavy ions recoiling in vacuum and low pressure gas journal September 1977
Recent developments in excited-state gyromagnetic ratio measurements and nuclear structure journal February 2001
One-phonon isovector 2 1 , MS + state in the neutron-rich nucleus 132 Te journal December 2011
Nuclear Data Sheets for A = 125 journal March 2011
Octupole Vibration and Influence of Shell Effects on the E 1 Transition Rates in 140 Xe journal June 1999
Influence of Electric and Magnetic Fields on Angular Correlations journal November 1953
2 π 1 ν states populated in Te 135 from Be 9 -induced reactions with a Sn 132 beam journal July 2014
γ-ray angular distributions and correlations after projectile-fragmentation reactions journal July 2003
Exotic Nuclei conference January 2010
Transition from collectivity to single-particle degrees of freedom from magnetic moment measurements on 38 82 Sr 44 and 38 90 Sr 52 journal June 2014
Anomalous properties of quadrupole collective states in Te 136 and beyond journal November 2004
Transition Probability from the Ground to the First-Excited 2+ State of Even–Even Nuclides journal May 2001
Spectroscopy of neutron-rich Te and Xe isotopes within a new shell model context journal August 2013
Nuclear Data Sheets for A = 125 journal April 1999
Exotic nuclei journal June 2019
Nuclear Data Sheets for A = 122 journal March 1994
Magic Nucleus 132Sn and Its One-Neutron-Hole Neighbor 131Sn text January 2001
Shell-model calculations and realistic effective interactions text January 2008
First Results from the CARIBU Facility: Mass Measurements on the r-Process Path text January 2013
Structure of exotic nuclei around double shell closures text January 2006

Cited By (1)

First-excited state g  factors in the stable, even Ge and Se isotopes journal October 2019