Coulomb shifts and shape changes in the mass 70 region

B.S. Nara Singh; A.N. Steer; D.G. Jenkins; R. Wadsworth; M.A. Bentley; P.J. Davies; R. Glover; N.S. Pattabiraman; C.J. Lister; T. Grahn; P.T. Greenlees; P. Jones; R. Julin; S. Juutinen; M. Leino; M. Nyman; J. Pakarinen; P. Rahkila; J. Saren; C. Scholey; J. Sorri; J. Uusitalo; P.A. Butler; M. Dimmock; D.T. Joss; J. Thomson; B. Cederwall; B. Hadinia; M. Sandzelius

doi:10.1103/PhysRevC.75.061301

Coulomb shifts and shape changes in the mass 70 region

B.S. Nara Singh, A.N. Steer, D.G. Jenkins, R. Wadsworth, M.A. Bentley, P.J. Davies, R. Glover, N.S. Pattabiraman, C.J. Lister, T. Grahn, P.T. Greenlees, P. Jones, R. Julin, S. Juutinen, M. Leino, M. Nyman, J. Pakarinen, P. Rahkila, J. Saren, C. ScholeyJ. Sorri, J. Uusitalo, P.A. Butler, M. Dimmock, D.T. Joss, J. Thomson, B. Cederwall, B. Hadinia, M. Sandzelius

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Abstract

The technique of recoil β tagging has been developed which allows prompt γ decays in nuclei from excited states to be correlated with electrons from their subsequent short-lived β decay. This technique is ideal for studying nuclei very far from stability and improves in sensitivity for very short-lived decays and for high decay Q-values. The method has allowed excited states in 78Y to be observed for the first time, as well as an extension in the knowledge of T=1states in 74Rb. From this new information it has been possible to compare Coulomb energy differences (CED) between
T=1 states in 70Br/70Se,74Rb/74Kr, and 78Y/78Sr. The A=70 CED exhibit an anomalous behavior which is inconsistent with all other known CED. This behavior may be accounted for qualitatively in terms of small variations in the Coulomb energy arising from shape changes.

Original language	English
Article number	061301
Journal	Physical Review C
Volume	75
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.75.061301
Publication status	Published - 15 Jun 2007
Externally published	Yes

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Nara Singh, B. S., Steer, A. N., Jenkins, D. G., Wadsworth, R., Bentley, M. A., Davies, P. J., Glover, R., Pattabiraman, N. S., Lister, C. J., Grahn, T., Greenlees, P. T., Jones, P., Julin, R., Juutinen, S., Leino, M., Nyman, M., Pakarinen, J., Rahkila, P., Saren, J., ... Sandzelius, M. (2007). Coulomb shifts and shape changes in the mass 70 region. Physical Review C, 75(6), Article 061301. https://doi.org/10.1103/PhysRevC.75.061301

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title = "Coulomb shifts and shape changes in the mass 70 region",

abstract = "The technique of recoil β tagging has been developed which allows prompt γ decays in nuclei from excited states to be correlated with electrons from their subsequent short-lived β decay. This technique is ideal for studying nuclei very far from stability and improves in sensitivity for very short-lived decays and for high decay Q-values. The method has allowed excited states in 78Y to be observed for the first time, as well as an extension in the knowledge of T=1states in 74Rb. From this new information it has been possible to compare Coulomb energy differences (CED) between T=1 states in 70Br/70Se,74Rb/74Kr, and 78Y/78Sr. The A=70 CED exhibit an anomalous behavior which is inconsistent with all other known CED. This behavior may be accounted for qualitatively in terms of small variations in the Coulomb energy arising from shape changes.",

author = "{Nara Singh}, B.S. and A.N. Steer and D.G. Jenkins and R. Wadsworth and M.A. Bentley and P.J. Davies and R. Glover and N.S. Pattabiraman and C.J. Lister and T. Grahn and P.T. Greenlees and P. Jones and R. Julin and S. Juutinen and M. Leino and M. Nyman and J. Pakarinen and P. Rahkila and J. Saren and C. Scholey and J. Sorri and J. Uusitalo and P.A. Butler and M. Dimmock and D.T. Joss and J. Thomson and B. Cederwall and B. Hadinia and M. Sandzelius",

year = "2007",

month = jun,

day = "15",

doi = "10.1103/PhysRevC.75.061301",

language = "English",

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Nara Singh, BS, Steer, AN, Jenkins, DG, Wadsworth, R, Bentley, MA, Davies, PJ, Glover, R, Pattabiraman, NS, Lister, CJ, Grahn, T, Greenlees, PT, Jones, P, Julin, R, Juutinen, S, Leino, M, Nyman, M, Pakarinen, J, Rahkila, P, Saren, J, Scholey, C, Sorri, J, Uusitalo, J, Butler, PA, Dimmock, M, Joss, DT, Thomson, J, Cederwall, B, Hadinia, B & Sandzelius, M 2007, 'Coulomb shifts and shape changes in the mass 70 region', Physical Review C, vol. 75, no. 6, 061301. https://doi.org/10.1103/PhysRevC.75.061301

TY - JOUR

T1 - Coulomb shifts and shape changes in the mass 70 region

AU - Nara Singh, B.S.

AU - Steer, A.N.

AU - Jenkins, D.G.

AU - Wadsworth, R.

AU - Bentley, M.A.

AU - Davies, P.J.

AU - Glover, R.

AU - Pattabiraman, N.S.

AU - Lister, C.J.

AU - Grahn, T.

AU - Greenlees, P.T.

AU - Jones, P.

AU - Julin, R.

AU - Juutinen, S.

AU - Leino, M.

AU - Nyman, M.

AU - Pakarinen, J.

AU - Rahkila, P.

AU - Saren, J.

AU - Scholey, C.

AU - Sorri, J.

AU - Uusitalo, J.

AU - Butler, P.A.

AU - Dimmock, M.

AU - Joss, D.T.

AU - Thomson, J.

AU - Cederwall, B.

AU - Hadinia, B.

AU - Sandzelius, M.

PY - 2007/6/15

Y1 - 2007/6/15

N2 - The technique of recoil β tagging has been developed which allows prompt γ decays in nuclei from excited states to be correlated with electrons from their subsequent short-lived β decay. This technique is ideal for studying nuclei very far from stability and improves in sensitivity for very short-lived decays and for high decay Q-values. The method has allowed excited states in 78Y to be observed for the first time, as well as an extension in the knowledge of T=1states in 74Rb. From this new information it has been possible to compare Coulomb energy differences (CED) between T=1 states in 70Br/70Se,74Rb/74Kr, and 78Y/78Sr. The A=70 CED exhibit an anomalous behavior which is inconsistent with all other known CED. This behavior may be accounted for qualitatively in terms of small variations in the Coulomb energy arising from shape changes.

AB - The technique of recoil β tagging has been developed which allows prompt γ decays in nuclei from excited states to be correlated with electrons from their subsequent short-lived β decay. This technique is ideal for studying nuclei very far from stability and improves in sensitivity for very short-lived decays and for high decay Q-values. The method has allowed excited states in 78Y to be observed for the first time, as well as an extension in the knowledge of T=1states in 74Rb. From this new information it has been possible to compare Coulomb energy differences (CED) between T=1 states in 70Br/70Se,74Rb/74Kr, and 78Y/78Sr. The A=70 CED exhibit an anomalous behavior which is inconsistent with all other known CED. This behavior may be accounted for qualitatively in terms of small variations in the Coulomb energy arising from shape changes.

U2 - 10.1103/PhysRevC.75.061301

DO - 10.1103/PhysRevC.75.061301

M3 - Article

SN - 2469-9985

VL - 75

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 061301

ER -

Coulomb shifts and shape changes in the mass 70 region

Abstract

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