E0 transition strength in stable Ni isotopes

L. J. Evitts; A. B. Garnsworthy; T. Kibédi; J. Smallcombe; M. W. Reed; A. E. Stuchbery; G. J. Lane; T. K. Eriksen; A. Akber; B. Alshahrani; M. De Vries; M. S.M. Gerathy; J. D. Holt; B. Q. Lee; B. P. McCormick; A. J. Mitchell; M. Moukaddam; S. Mukhopadhyay; N. Palalani; T. Palazzo; E. E. Peters; A. P.D. Ramirez; T. Tornyi; S. W. Yates

doi:10.1103/PhysRevC.99.024306

E0 transition strength in stable Ni isotopes

L. J. Evitts, A. B. Garnsworthy, T. Kibédi, J. Smallcombe, M. W. Reed, A. E. Stuchbery, G. J. Lane, T. K. Eriksen, A. Akber, B. Alshahrani, M. De Vries, M. S.M. Gerathy, J. D. Holt, B. Q. Lee, B. P. McCormick, A. J. Mitchell, M. Moukaddam, S. Mukhopadhyay, N. Palalani, T. PalazzoE. E. Peters, A. P.D. Ramirez, T. Tornyi, S. W. Yates

Chemistry

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8 Scopus citations

Abstract

Excited states in Ni58,60,62 were populated via inelastic proton scattering at the Australian National University as well as via inelastic neutron scattering at the University of Kentucky Accelerator Laboratory. The Super-e electron spectrometer and the CAESAR Compton-suppressed HPGe array were used in complementary experiments to measure conversion coefficients and δ(E2/M1) mixing ratios, respectively, for a number of 2+→2+ transitions. The data obtained were combined with lifetimes and branching ratios to determine E0,M1, and E2 transition strengths between 2+ states. The E0 transition strengths between 0+ states were measured using internal conversion electron spectroscopy and compare well to previous results from internal pair formation spectroscopy. The E0 transition strengths between the lowest-lying 2+ states were found to be consistently large for the isotopes studied.

Original language	English
Article number	024306
Journal	Physical Review C
Volume	99
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.99.024306
State	Published - Feb 11 2019

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.

Funding

We would like to thank the technical staff of the Heavy Ion Accelerator Facility at the Australian National University, and in particular Justin Heighway for preparing the nickel targets. We thank B. A. Brown and S. R. Stroberg for useful discussions related to this work. A.B.G. is grateful for support from the Department of Nuclear Physics of the Australian National University. Support for the ANU Heavy Ion Accelerator Facility operations through the Australian National Collaborative Research Infrastructure Strategy (NCRIS) program is acknowledged. This work was supported in part by the Natural Sciences and Engineering Research Council of Canada (NSERC); the U.S. National Science Foundation, Grant No. PHY-1606890; and by the Australian Research Council Discovery Grants No. DP140102986 and No. FT100100991. TRIUMF receives funding via a contribution agreement through the National Research Council Canada.

Funders	Funder number
U.S. National Science Foundation (NSF)	PHY-1606890
National Science Foundation (NSF)	1606890
Natural Sciences and Engineering Research Council of Canada
National Research Council Canada (NRCC)
Australian Research Council	DP140102986

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Evitts, L. J., Garnsworthy, A. B., Kibédi, T., Smallcombe, J., Reed, M. W., Stuchbery, A. E., Lane, G. J., Eriksen, T. K., Akber, A., Alshahrani, B., De Vries, M., Gerathy, M. S. M., Holt, J. D., Lee, B. Q., McCormick, B. P., Mitchell, A. J., Moukaddam, M., Mukhopadhyay, S., Palalani, N., ... Yates, S. W. (2019). E0 transition strength in stable Ni isotopes. Physical Review C, 99(2), Article 024306. https://doi.org/10.1103/PhysRevC.99.024306

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title = "E0 transition strength in stable Ni isotopes",

abstract = "Excited states in Ni58,60,62 were populated via inelastic proton scattering at the Australian National University as well as via inelastic neutron scattering at the University of Kentucky Accelerator Laboratory. The Super-e electron spectrometer and the CAESAR Compton-suppressed HPGe array were used in complementary experiments to measure conversion coefficients and δ(E2/M1) mixing ratios, respectively, for a number of 2+→2+ transitions. The data obtained were combined with lifetimes and branching ratios to determine E0,M1, and E2 transition strengths between 2+ states. The E0 transition strengths between 0+ states were measured using internal conversion electron spectroscopy and compare well to previous results from internal pair formation spectroscopy. The E0 transition strengths between the lowest-lying 2+ states were found to be consistently large for the isotopes studied.",

author = "Evitts, {L. J.} and Garnsworthy, {A. B.} and T. Kib{\'e}di and J. Smallcombe and Reed, {M. W.} and Stuchbery, {A. E.} and Lane, {G. J.} and Eriksen, {T. K.} and A. Akber and B. Alshahrani and {De Vries}, M. and Gerathy, {M. S.M.} and Holt, {J. D.} and Lee, {B. Q.} and McCormick, {B. P.} and Mitchell, {A. J.} and M. Moukaddam and S. Mukhopadhyay and N. Palalani and T. Palazzo and Peters, {E. E.} and Ramirez, {A. P.D.} and T. Tornyi and Yates, {S. W.}",

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Evitts, LJ, Garnsworthy, AB, Kibédi, T, Smallcombe, J, Reed, MW, Stuchbery, AE, Lane, GJ, Eriksen, TK, Akber, A, Alshahrani, B, De Vries, M, Gerathy, MSM, Holt, JD, Lee, BQ, McCormick, BP, Mitchell, AJ, Moukaddam, M, Mukhopadhyay, S, Palalani, N, Palazzo, T, Peters, EE, Ramirez, APD, Tornyi, T & Yates, SW 2019, 'E0 transition strength in stable Ni isotopes', Physical Review C, vol. 99, no. 2, 024306. https://doi.org/10.1103/PhysRevC.99.024306

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T1 - E0 transition strength in stable Ni isotopes

AU - Evitts, L. J.

AU - Garnsworthy, A. B.

AU - Kibédi, T.

AU - Smallcombe, J.

AU - Reed, M. W.

AU - Stuchbery, A. E.

AU - Lane, G. J.

AU - Eriksen, T. K.

AU - Akber, A.

AU - Alshahrani, B.

AU - De Vries, M.

AU - Gerathy, M. S.M.

AU - Holt, J. D.

AU - Lee, B. Q.

AU - McCormick, B. P.

AU - Mitchell, A. J.

AU - Moukaddam, M.

AU - Mukhopadhyay, S.

AU - Palalani, N.

AU - Palazzo, T.

AU - Peters, E. E.

AU - Ramirez, A. P.D.

AU - Tornyi, T.

AU - Yates, S. W.

PY - 2019/2/11

Y1 - 2019/2/11

N2 - Excited states in Ni58,60,62 were populated via inelastic proton scattering at the Australian National University as well as via inelastic neutron scattering at the University of Kentucky Accelerator Laboratory. The Super-e electron spectrometer and the CAESAR Compton-suppressed HPGe array were used in complementary experiments to measure conversion coefficients and δ(E2/M1) mixing ratios, respectively, for a number of 2+→2+ transitions. The data obtained were combined with lifetimes and branching ratios to determine E0,M1, and E2 transition strengths between 2+ states. The E0 transition strengths between 0+ states were measured using internal conversion electron spectroscopy and compare well to previous results from internal pair formation spectroscopy. The E0 transition strengths between the lowest-lying 2+ states were found to be consistently large for the isotopes studied.

AB - Excited states in Ni58,60,62 were populated via inelastic proton scattering at the Australian National University as well as via inelastic neutron scattering at the University of Kentucky Accelerator Laboratory. The Super-e electron spectrometer and the CAESAR Compton-suppressed HPGe array were used in complementary experiments to measure conversion coefficients and δ(E2/M1) mixing ratios, respectively, for a number of 2+→2+ transitions. The data obtained were combined with lifetimes and branching ratios to determine E0,M1, and E2 transition strengths between 2+ states. The E0 transition strengths between 0+ states were measured using internal conversion electron spectroscopy and compare well to previous results from internal pair formation spectroscopy. The E0 transition strengths between the lowest-lying 2+ states were found to be consistently large for the isotopes studied.

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E0 transition strength in stable Ni isotopes

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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