Investigation into the semimagic nature of the tin isotopes through electromagnetic moments
Journal Article
·
· Physical Review C, Nuclear Physics
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Australian National Univ., Canberra, ACT (Australia)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Instituto de Ciencias Nucleares (Mexico)
- Oak Ridge Associated Univ., Oak Ridge, TN (United States)
- Rutgers Univ., New Brunswick, NJ (United States)
- Univ. of Tennessee, Knoxville, TN (United States); Oxford Univ., Oxford (United Kingdom)
A complete set of electromagnetic moments, B(E2;0+1 2+1), Q(2+1), and g(2+1), have been measured from Coulomb excitation of semi-magic 112,114,116,118,120,122,124Sn (Z = 50) on natural carbon and titanium targets. The magnitude of the B(E2) values, measured to a precision of ~4%, disagree with a recent lifetime study [Phys. Lett. B 695, 110 (2011)] that employed the Doppler- shift attenuation method. The B(E2) values show an overall enhancement compared with recent theoretical calculations and a clear asymmetry about midshell, contrary to naive expectations. A new static electric quadrupole moment, Q(2+1), has been measured for 114Sn. The static quadrupole moments are generally consistent with zero but reveal an enhancement near midshell; this had not been previously observed. The magnetic dipole moments are consistent with previous measurements and show a near monotonic decrease in value with neutron number. The current theory calculations fail to reproduce the electromagnetic moments of the tin isotopes. The role of 2p-2h and 4p-4h intruders, which are lowest in energy at mid shell and outside of current model spaces, needs to be investigated in the future.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725; AC05-76OR00033; FG02-96ER40963; FG52-08NA28552
- OSTI ID:
- 1223667
- Alternate ID(s):
- OSTI ID: 1223832
- Journal Information:
- Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 4 Vol. 92; ISSN 0556-2813; ISSN PRVCAN
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electromagnetic properties of the first 2{sub 1}{sup +} excited states in {sup 100,102,104}Ru
Determination of the static quadrupole moment of the 1. 98-MeV 2/sup +/ state in /sup 18/O
Enhanced strength of the 2{sub 1}{sup +}{yields}0{sub g.s.}{sup +} transition in {sup 114}Sn studied via Coulomb excitation in inverse kinematics
Journal Article
·
Wed Dec 31 23:00:00 EST 1997
· Physical Review, C
·
OSTI ID:565953
Determination of the static quadrupole moment of the 1. 98-MeV 2/sup +/ state in /sup 18/O
Journal Article
·
Mon Aug 22 00:00:00 EDT 1977
· Phys. Rev. Lett.; (United States)
·
OSTI ID:7316173
Enhanced strength of the 2{sub 1}{sup +}{yields}0{sub g.s.}{sup +} transition in {sup 114}Sn studied via Coulomb excitation in inverse kinematics
Journal Article
·
Mon Sep 15 00:00:00 EDT 2008
· Physical Review. C, Nuclear Physics
·
OSTI ID:21192173