Conversion-electron spectroscopy and gamma-gamma angular correlation measurements in 116Sn

D. S. Cross; J. L. Pore; C. Andreoiu; G. C. Ball; P. C. Bender; A. S. Chester; R. Churchman; G. A. Demand; A. Diaz Varela; R. Dunlop; A. B. Garnsworthy; P. E. Garrett; G. Hackman; B. Hadinia; B. Jigmeddorj; A. T. Laffoley; A. Liblong; R. Kanungo; D. T. Miller; B. Noakes; C. M. Petrache; K. Starosta; C. E. Svensson; P. Voss; Z. M. Wang; J. M. Wilson; J. L. Wood; S. W. Yates

doi:10.1140/epja/i2017-12412-5

Conversion-electron spectroscopy and gamma-gamma angular correlation measurements in ¹¹⁶Sn

D. S. Cross, J. L. Pore, C. Andreoiu, G. C. Ball, P. C. Bender, A. S. Chester, R. Churchman, G. A. Demand, A. Diaz Varela, R. Dunlop, A. B. Garnsworthy, P. E. Garrett, G. Hackman, B. Hadinia, B. Jigmeddorj, A. T. Laffoley, A. Liblong, R. Kanungo, D. T. Miller, B. NoakesC. M. Petrache, K. Starosta, C. E. Svensson, P. Voss, Z. M. Wang, J. M. Wilson, J. L. Wood, S. W. Yates

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

4 Scopus citations

Abstract

The ¹¹⁶Sn nucleus was studied via the β^- decay of ¹¹⁶In utilizing the 8 π spectrometer and its auxiliary detectors at TRIUMF-ISAC. The resulting K-shell conversion coefficients, K/L ratios, and multipole mixing ratios are presented. The 23+→21+931 keV and 22+→21+819 keV transition mixing ratios were re-measured and found to be δ=+1.8-0.5+0.7 and - 1. 83 (8) , respectively. Newly measured mixing ratios for transitions among the low-lying I^π= 4 ⁺ states in ¹¹⁶Sn, when combined with γ-ray intensity data, suggest that the 2529 keV 42+ state possesses a neutron broken-pair admixture in addition to its dominant proton 2p-2h component.

Original language	English
Article number	216
Journal	European Physical Journal A
Volume	53
Issue number	11
DOIs	https://doi.org/10.1140/epja/i2017-12412-5
State	Published - Nov 1 2017

Bibliographical note

Funding Information:
We wish to thank T. Drake for helpful commentary and discussions regarding aspects of the analysis of the 116Sn data. Funding for this research was provided by the Natural Sciences and Engineering Research Council and by the U.S. National Science Foundation under grant number PHY-1606890. TRIUMF receives federal funding via a contribution agreement through the National Research Council of Canada.

Publisher Copyright:
© 2017, SIF, Springer-Verlag GmbH Germany, part of Springer Nature.

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1140/epja/i2017-12412-5

Cite this

Cross, D. S., Pore, J. L., Andreoiu, C., Ball, G. C., Bender, P. C., Chester, A. S., Churchman, R., Demand, G. A., Diaz Varela, A., Dunlop, R., Garnsworthy, A. B., Garrett, P. E., Hackman, G., Hadinia, B., Jigmeddorj, B., Laffoley, A. T., Liblong, A., Kanungo, R., Miller, D. T., ... Yates, S. W. (2017). Conversion-electron spectroscopy and gamma-gamma angular correlation measurements in ¹¹⁶Sn. European Physical Journal A, 53(11), [216]. https://doi.org/10.1140/epja/i2017-12412-5

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title = "Conversion-electron spectroscopy and gamma-gamma angular correlation measurements in 116Sn",

abstract = "The 116Sn nucleus was studied via the β- decay of 116In utilizing the 8 π spectrometer and its auxiliary detectors at TRIUMF-ISAC. The resulting K-shell conversion coefficients, K/L ratios, and multipole mixing ratios are presented. The 23+→21+931 keV and 22+→21+819 keV transition mixing ratios were re-measured and found to be δ=+1.8-0.5+0.7 and - 1. 83 (8) , respectively. Newly measured mixing ratios for transitions among the low-lying Iπ= 4 + states in 116Sn, when combined with γ-ray intensity data, suggest that the 2529 keV 42+ state possesses a neutron broken-pair admixture in addition to its dominant proton 2p-2h component.",

author = "Cross, {D. S.} and Pore, {J. L.} and C. Andreoiu and Ball, {G. C.} and Bender, {P. C.} and Chester, {A. S.} and R. Churchman and Demand, {G. A.} and {Diaz Varela}, A. and R. Dunlop and Garnsworthy, {A. B.} and Garrett, {P. E.} and G. Hackman and B. Hadinia and B. Jigmeddorj and Laffoley, {A. T.} and A. Liblong and R. Kanungo and Miller, {D. T.} and B. Noakes and Petrache, {C. M.} and K. Starosta and Svensson, {C. E.} and P. Voss and Wang, {Z. M.} and Wilson, {J. M.} and Wood, {J. L.} and Yates, {S. W.}",

note = "Funding Information: We wish to thank T. Drake for helpful commentary and discussions regarding aspects of the analysis of the 116Sn data. Funding for this research was provided by the Natural Sciences and Engineering Research Council and by the U.S. National Science Foundation under grant number PHY-1606890. TRIUMF receives federal funding via a contribution agreement through the National Research Council of Canada. Publisher Copyright: {\textcopyright} 2017, SIF, Springer-Verlag GmbH Germany, part of Springer Nature.",

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Cross, DS, Pore, JL, Andreoiu, C, Ball, GC, Bender, PC, Chester, AS, Churchman, R, Demand, GA, Diaz Varela, A, Dunlop, R, Garnsworthy, AB, Garrett, PE, Hackman, G, Hadinia, B, Jigmeddorj, B, Laffoley, AT, Liblong, A, Kanungo, R, Miller, DT, Noakes, B, Petrache, CM, Starosta, K, Svensson, CE, Voss, P, Wang, ZM, Wilson, JM, Wood, JL & Yates, SW 2017, 'Conversion-electron spectroscopy and gamma-gamma angular correlation measurements in ¹¹⁶Sn', European Physical Journal A, vol. 53, no. 11, 216. https://doi.org/10.1140/epja/i2017-12412-5

TY - JOUR

T1 - Conversion-electron spectroscopy and gamma-gamma angular correlation measurements in 116Sn

AU - Cross, D. S.

AU - Pore, J. L.

AU - Andreoiu, C.

AU - Ball, G. C.

AU - Bender, P. C.

AU - Chester, A. S.

AU - Churchman, R.

AU - Demand, G. A.

AU - Diaz Varela, A.

AU - Dunlop, R.

AU - Garnsworthy, A. B.

AU - Garrett, P. E.

AU - Hackman, G.

AU - Hadinia, B.

AU - Jigmeddorj, B.

AU - Laffoley, A. T.

AU - Liblong, A.

AU - Kanungo, R.

AU - Miller, D. T.

AU - Noakes, B.

AU - Petrache, C. M.

AU - Starosta, K.

AU - Svensson, C. E.

AU - Voss, P.

AU - Wang, Z. M.

AU - Wilson, J. M.

AU - Wood, J. L.

AU - Yates, S. W.

N1 - Funding Information: We wish to thank T. Drake for helpful commentary and discussions regarding aspects of the analysis of the 116Sn data. Funding for this research was provided by the Natural Sciences and Engineering Research Council and by the U.S. National Science Foundation under grant number PHY-1606890. TRIUMF receives federal funding via a contribution agreement through the National Research Council of Canada. Publisher Copyright: © 2017, SIF, Springer-Verlag GmbH Germany, part of Springer Nature.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - The 116Sn nucleus was studied via the β- decay of 116In utilizing the 8 π spectrometer and its auxiliary detectors at TRIUMF-ISAC. The resulting K-shell conversion coefficients, K/L ratios, and multipole mixing ratios are presented. The 23+→21+931 keV and 22+→21+819 keV transition mixing ratios were re-measured and found to be δ=+1.8-0.5+0.7 and - 1. 83 (8) , respectively. Newly measured mixing ratios for transitions among the low-lying Iπ= 4 + states in 116Sn, when combined with γ-ray intensity data, suggest that the 2529 keV 42+ state possesses a neutron broken-pair admixture in addition to its dominant proton 2p-2h component.

AB - The 116Sn nucleus was studied via the β- decay of 116In utilizing the 8 π spectrometer and its auxiliary detectors at TRIUMF-ISAC. The resulting K-shell conversion coefficients, K/L ratios, and multipole mixing ratios are presented. The 23+→21+931 keV and 22+→21+819 keV transition mixing ratios were re-measured and found to be δ=+1.8-0.5+0.7 and - 1. 83 (8) , respectively. Newly measured mixing ratios for transitions among the low-lying Iπ= 4 + states in 116Sn, when combined with γ-ray intensity data, suggest that the 2529 keV 42+ state possesses a neutron broken-pair admixture in addition to its dominant proton 2p-2h component.

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