Electromagnetic properties of the 21+ state in 134Te: Influence of core excitation on single-particle orbits beyond 132Sn

A. E. Stuchbery; J. M. Allmond; A. Galindo-Uribarri; E. Padilla-Rodal; D. C. Radford; N. J. Stone; J. C. Batchelder; J. R. Beene; N. Benczer-Koller; C. R. Bingham; M. E. Howard; G. J. Kumbartzki; J. F. Liang; B. Manning; D. W. Stracener; C. H. Yu

doi:10.1103/PhysRevC.88.051304

Electromagnetic properties of the 21+ state in 134Te: Influence of core excitation on single-particle orbits beyond 132Sn

A. E. Stuchbery^*, J. M. Allmond, A. Galindo-Uribarri, E. Padilla-Rodal, D. C. Radford, N. J. Stone, J. C. Batchelder, J. R. Beene, N. Benczer-Koller, C. R. Bingham, M. E. Howard, G. J. Kumbartzki, J. F. Liang, B. Manning, D. W. Stracener, C. H. Yu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

The g factor and B(E2) of the first excited 2⁺ state have been measured following Coulomb excitation of the neutron-rich semimagic nuclide 134Te (two protons outside 132Sn) produced as a radioactive beam. The precision achieved matches related g-factor measurements on stable beams and distinguishes between alternative models. The B(E2) measurement exposes quadrupole strength in the 21+ state beyond that predicted by current large-basis shell-model calculations. This additional quadrupole strength can be attributed to coupling between the two valence protons and excitations of the 132Sn core. However, the wave functions of the low-excitation positive-parity states in 134Te up to 61+ remain dominated by the π(g7^/2 ⁾2 configuration.

Original language	English
Article number	051304
Journal	Physical Review C - Nuclear Physics
Volume	88
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.88.051304
Publication status	Published - 15 Nov 2013

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Stuchbery, A. E., Allmond, J. M., Galindo-Uribarri, A., Padilla-Rodal, E., Radford, D. C., Stone, N. J., Batchelder, J. C., Beene, J. R., Benczer-Koller, N., Bingham, C. R., Howard, M. E., Kumbartzki, G. J., Liang, J. F., Manning, B., Stracener, D. W., & Yu, C. H. (2013). Electromagnetic properties of the 21+ state in 134Te: Influence of core excitation on single-particle orbits beyond 132Sn. Physical Review C - Nuclear Physics, 88(5), Article 051304. https://doi.org/10.1103/PhysRevC.88.051304

@article{ff2c87ab5eb5476f983aecdcec2686ec,

title = "Electromagnetic properties of the 21+ state in 134Te: Influence of core excitation on single-particle orbits beyond 132Sn",

abstract = "The g factor and B(E2) of the first excited 2+ state have been measured following Coulomb excitation of the neutron-rich semimagic nuclide 134Te (two protons outside 132Sn) produced as a radioactive beam. The precision achieved matches related g-factor measurements on stable beams and distinguishes between alternative models. The B(E2) measurement exposes quadrupole strength in the 21+ state beyond that predicted by current large-basis shell-model calculations. This additional quadrupole strength can be attributed to coupling between the two valence protons and excitations of the 132Sn core. However, the wave functions of the low-excitation positive-parity states in 134Te up to 61+ remain dominated by the π(g7/2 )2 configuration.",

author = "Stuchbery, {A. E.} and Allmond, {J. M.} and A. Galindo-Uribarri and E. Padilla-Rodal and Radford, {D. C.} and Stone, {N. J.} and Batchelder, {J. C.} and Beene, {J. R.} and N. Benczer-Koller and Bingham, {C. R.} and Howard, {M. E.} and Kumbartzki, {G. J.} and Liang, {J. F.} and B. Manning and Stracener, {D. W.} and Yu, {C. H.}",

year = "2013",

month = nov,

day = "15",

doi = "10.1103/PhysRevC.88.051304",

language = "English",

volume = "88",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

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Stuchbery, AE, Allmond, JM, Galindo-Uribarri, A, Padilla-Rodal, E, Radford, DC, Stone, NJ, Batchelder, JC, Beene, JR, Benczer-Koller, N, Bingham, CR, Howard, ME, Kumbartzki, GJ, Liang, JF, Manning, B, Stracener, DW & Yu, CH 2013, 'Electromagnetic properties of the 21+ state in 134Te: Influence of core excitation on single-particle orbits beyond 132Sn', Physical Review C - Nuclear Physics, vol. 88, no. 5, 051304. https://doi.org/10.1103/PhysRevC.88.051304

TY - JOUR

T1 - Electromagnetic properties of the 21+ state in 134Te

T2 - Influence of core excitation on single-particle orbits beyond 132Sn

AU - Stuchbery, A. E.

AU - Allmond, J. M.

AU - Galindo-Uribarri, A.

AU - Padilla-Rodal, E.

AU - Radford, D. C.

AU - Stone, N. J.

AU - Batchelder, J. C.

AU - Beene, J. R.

AU - Benczer-Koller, N.

AU - Bingham, C. R.

AU - Howard, M. E.

AU - Kumbartzki, G. J.

AU - Liang, J. F.

AU - Manning, B.

AU - Stracener, D. W.

AU - Yu, C. H.

PY - 2013/11/15

Y1 - 2013/11/15

N2 - The g factor and B(E2) of the first excited 2+ state have been measured following Coulomb excitation of the neutron-rich semimagic nuclide 134Te (two protons outside 132Sn) produced as a radioactive beam. The precision achieved matches related g-factor measurements on stable beams and distinguishes between alternative models. The B(E2) measurement exposes quadrupole strength in the 21+ state beyond that predicted by current large-basis shell-model calculations. This additional quadrupole strength can be attributed to coupling between the two valence protons and excitations of the 132Sn core. However, the wave functions of the low-excitation positive-parity states in 134Te up to 61+ remain dominated by the π(g7/2 )2 configuration.

AB - The g factor and B(E2) of the first excited 2+ state have been measured following Coulomb excitation of the neutron-rich semimagic nuclide 134Te (two protons outside 132Sn) produced as a radioactive beam. The precision achieved matches related g-factor measurements on stable beams and distinguishes between alternative models. The B(E2) measurement exposes quadrupole strength in the 21+ state beyond that predicted by current large-basis shell-model calculations. This additional quadrupole strength can be attributed to coupling between the two valence protons and excitations of the 132Sn core. However, the wave functions of the low-excitation positive-parity states in 134Te up to 61+ remain dominated by the π(g7/2 )2 configuration.

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DO - 10.1103/PhysRevC.88.051304

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VL - 88

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JF - Physical Review C - Nuclear Physics

IS - 5

M1 - 051304

ER -

Electromagnetic properties of the 21+ state in 134Te: Influence of core excitation on single-particle orbits beyond 132Sn

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