Identification of significant E0 strength in the 22                             +→21                             + transitions of 58,60,62Ni

L. J. Evitts; A. B. Garnsworthy; T. Kibédi; J. Smallcombe; M. W. Reed; B. A. Brown; 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; S. R. Stroberg; T. Tornyi; S. W. Yates

doi:10.1016/j.physletb.2018.01.076

Identification of significant E0 strength in the 2₂ ⁺→2₁ ⁺ transitions of ^58,60,62Ni

L. J. Evitts, A. B. Garnsworthy^*, T. Kibédi, J. Smallcombe, M. W. Reed, B. A. Brown, 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. PalalaniT. Palazzo, E. E. Peters, A. P.D. Ramirez, S. R. Stroberg, T. Tornyi, S. W. Yates

^*Corresponding author for this work

ANU Law School

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12 Citations (Scopus)

Abstract

The E0 transition strength in the 2₂ ⁺→2₁ ⁺ transitions of ^58,60,62Ni have been determined for the first time following a series of measurements at the Australian National University (ANU) and the University of Kentucky (UK). The CAESAR Compton-suppressed HPGe array and the Super-e solenoid at ANU were used to measure the δ(E2/M1) mixing ratio and internal conversion coefficient of each transition following inelastic proton scattering. Level half-lives, δ(E2/M1) mixing ratios and γ-ray branching ratios were measured at UK following inelastic neutron scattering. The new spectroscopic information was used to determine the E0 strengths. These are the first 2⁺→2⁺ E0 transition strengths measured in nuclei with spherical ground states and the E0 component is found to be unexpectedly large; in fact, these are amongst the largest E0 transition strengths in medium and heavy nuclei reported to date.

Original language	English
Pages (from-to)	396-401
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	779
DOIs	https://doi.org/10.1016/j.physletb.2018.01.076
Publication status	Published - 10 Apr 2018

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Evitts, L. J., Garnsworthy, A. B., Kibédi, T., Smallcombe, J., Reed, M. W., Brown, B. A., 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., ... Yates, S. W. (2018). Identification of significant E0 strength in the 2₂ ⁺→2₁ ⁺ transitions of ^58,60,62Ni. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 779, 396-401. https://doi.org/10.1016/j.physletb.2018.01.076

@article{053bb24a2aa246e7a00f808baa4aa2a2,

title = "Identification of significant E0 strength in the 22 +→21 + transitions of 58,60,62Ni",

abstract = "The E0 transition strength in the 22 +→21 + transitions of 58,60,62Ni have been determined for the first time following a series of measurements at the Australian National University (ANU) and the University of Kentucky (UK). The CAESAR Compton-suppressed HPGe array and the Super-e solenoid at ANU were used to measure the δ(E2/M1) mixing ratio and internal conversion coefficient of each transition following inelastic proton scattering. Level half-lives, δ(E2/M1) mixing ratios and γ-ray branching ratios were measured at UK following inelastic neutron scattering. The new spectroscopic information was used to determine the E0 strengths. These are the first 2+→2+ E0 transition strengths measured in nuclei with spherical ground states and the E0 component is found to be unexpectedly large; in fact, these are amongst the largest E0 transition strengths in medium and heavy nuclei reported to date.",

keywords = "Electric monopole (E0) transitions, Internal conversion, Mixing ratios, Nuclear structure",

author = "Evitts, {L. J.} and Garnsworthy, {A. B.} and T. Kib{\'e}di and J. Smallcombe and Reed, {M. W.} and Brown, {B. A.} 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 Stroberg, {S. R.} and T. Tornyi and Yates, {S. W.}",

note = "Publisher Copyright: {\textcopyright} 2018 The Author(s)",

year = "2018",

month = apr,

day = "10",

doi = "10.1016/j.physletb.2018.01.076",

language = "English",

volume = "779",

pages = "396--401",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Evitts, LJ, Garnsworthy, AB, Kibédi, T, Smallcombe, J, Reed, MW, Brown, BA, 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, Stroberg, SR, Tornyi, T & Yates, SW 2018, 'Identification of significant E0 strength in the 2₂ ⁺→2₁ ⁺ transitions of ^58,60,62Ni', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 779, pp. 396-401. https://doi.org/10.1016/j.physletb.2018.01.076

Identification of significant E0 strength in the 2₂ ⁺→2₁ ⁺ transitions of ^58,60,62Ni. / Evitts, L. J.; Garnsworthy, A. B.; Kibédi, T. et al.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 779, 10.04.2018, p. 396-401.

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

TY - JOUR

T1 - Identification of significant E0 strength in the 22 +→21 + transitions of 58,60,62Ni

AU - Evitts, L. J.

AU - Garnsworthy, A. B.

AU - Kibédi, T.

AU - Smallcombe, J.

AU - Reed, M. W.

AU - Brown, B. A.

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 - Stroberg, S. R.

AU - Tornyi, T.

AU - Yates, S. W.

PY - 2018/4/10

Y1 - 2018/4/10

N2 - The E0 transition strength in the 22 +→21 + transitions of 58,60,62Ni have been determined for the first time following a series of measurements at the Australian National University (ANU) and the University of Kentucky (UK). The CAESAR Compton-suppressed HPGe array and the Super-e solenoid at ANU were used to measure the δ(E2/M1) mixing ratio and internal conversion coefficient of each transition following inelastic proton scattering. Level half-lives, δ(E2/M1) mixing ratios and γ-ray branching ratios were measured at UK following inelastic neutron scattering. The new spectroscopic information was used to determine the E0 strengths. These are the first 2+→2+ E0 transition strengths measured in nuclei with spherical ground states and the E0 component is found to be unexpectedly large; in fact, these are amongst the largest E0 transition strengths in medium and heavy nuclei reported to date.

AB - The E0 transition strength in the 22 +→21 + transitions of 58,60,62Ni have been determined for the first time following a series of measurements at the Australian National University (ANU) and the University of Kentucky (UK). The CAESAR Compton-suppressed HPGe array and the Super-e solenoid at ANU were used to measure the δ(E2/M1) mixing ratio and internal conversion coefficient of each transition following inelastic proton scattering. Level half-lives, δ(E2/M1) mixing ratios and γ-ray branching ratios were measured at UK following inelastic neutron scattering. The new spectroscopic information was used to determine the E0 strengths. These are the first 2+→2+ E0 transition strengths measured in nuclei with spherical ground states and the E0 component is found to be unexpectedly large; in fact, these are amongst the largest E0 transition strengths in medium and heavy nuclei reported to date.

KW - Electric monopole (E0) transitions

KW - Internal conversion

KW - Mixing ratios

KW - Nuclear structure

UR - http://www.scopus.com/inward/record.url?scp=85042262820&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2018.01.076

DO - 10.1016/j.physletb.2018.01.076

M3 - Article

SN - 0370-2693

VL - 779

SP - 396

EP - 401

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Identification of significant E0 strength in the 2₂ ⁺→2₁ ⁺ transitions of ^58,60,62Ni

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