Degeneracy at 1871 keV in Cd112 and implications for neutrinoless double electron capture

K. L. Green; P. E. Garrett; R. A.E. Austin; G. C. Ball; D. S. Bandyopadhyay; S. Colosimo; D. Cross; G. A. Demand; G. F. Grinyer; G. Hackman; W. D. Kulp; K. G. Leach; A. C. Morton; C. J. Pearson; A. A. Phillips; M. A. Schumaker; C. E. Svensson; J. Wong; J. L. Wood; S. W. Yates

doi:10.1103/PhysRevC.80.032502

Degeneracy at 1871 keV in Cd112 and implications for neutrinoless double electron capture

K. L. Green, P. E. Garrett, R. A.E. Austin, G. C. Ball, D. S. Bandyopadhyay, S. Colosimo, D. Cross, G. A. Demand, G. F. Grinyer, G. Hackman, W. D. Kulp, K. G. Leach, A. C. Morton, C. J. Pearson, A. A. Phillips, M. A. Schumaker, C. E. Svensson, J. Wong, J. L. Wood, S. W. Yates

Chemistry

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Abstract

High-statistics β-decay measurements of Ag112 and In112 were performed to study the structure of the Cd112 nucleus. The precise energies of the doublet of levels at 1871 keV, for which the 0+ member has been suggested as a possible daughter state following neutrinoless double electron capture of Sn112, were determined to be 1871.137(72) keV (04+ level) and 1870.743(54) keV (42+ level). The nature of the 04+ level, required for the calculation of the nuclear matrix element that would be needed to extract a neutrino mass from neutrinoless double electron capture to this state, is suggested to be of intruder origin.

Original language	English
Article number	032502
Journal	Physical Review C - Nuclear Physics
Volume	80
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.80.032502
State	Published - Sep 9 2009

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.80.032502

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Green, K. L., Garrett, P. E., Austin, R. A. E., Ball, G. C., Bandyopadhyay, D. S., Colosimo, S., Cross, D., Demand, G. A., Grinyer, G. F., Hackman, G., Kulp, W. D., Leach, K. G., Morton, A. C., Pearson, C. J., Phillips, A. A., Schumaker, M. A., Svensson, C. E., Wong, J., Wood, J. L., & Yates, S. W. (2009). Degeneracy at 1871 keV in Cd112 and implications for neutrinoless double electron capture. Physical Review C - Nuclear Physics, 80(3), Article 032502. https://doi.org/10.1103/PhysRevC.80.032502

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title = "Degeneracy at 1871 keV in Cd112 and implications for neutrinoless double electron capture",

abstract = "High-statistics β-decay measurements of Ag112 and In112 were performed to study the structure of the Cd112 nucleus. The precise energies of the doublet of levels at 1871 keV, for which the 0+ member has been suggested as a possible daughter state following neutrinoless double electron capture of Sn112, were determined to be 1871.137(72) keV (04+ level) and 1870.743(54) keV (42+ level). The nature of the 04+ level, required for the calculation of the nuclear matrix element that would be needed to extract a neutrino mass from neutrinoless double electron capture to this state, is suggested to be of intruder origin.",

author = "Green, {K. L.} and Garrett, {P. E.} and Austin, {R. A.E.} and Ball, {G. C.} and Bandyopadhyay, {D. S.} and S. Colosimo and D. Cross and Demand, {G. A.} and Grinyer, {G. F.} and G. Hackman and Kulp, {W. D.} and Leach, {K. G.} and Morton, {A. C.} and Pearson, {C. J.} and Phillips, {A. A.} and Schumaker, {M. A.} and Svensson, {C. E.} and J. Wong and Wood, {J. L.} and Yates, {S. W.}",

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Green, KL, Garrett, PE, Austin, RAE, Ball, GC, Bandyopadhyay, DS, Colosimo, S, Cross, D, Demand, GA, Grinyer, GF, Hackman, G, Kulp, WD, Leach, KG, Morton, AC, Pearson, CJ, Phillips, AA, Schumaker, MA, Svensson, CE, Wong, J, Wood, JL & Yates, SW 2009, 'Degeneracy at 1871 keV in Cd112 and implications for neutrinoless double electron capture', Physical Review C - Nuclear Physics, vol. 80, no. 3, 032502. https://doi.org/10.1103/PhysRevC.80.032502

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AU - Garrett, P. E.

AU - Austin, R. A.E.

AU - Ball, G. C.

AU - Bandyopadhyay, D. S.

AU - Colosimo, S.

AU - Cross, D.

AU - Demand, G. A.

AU - Grinyer, G. F.

AU - Hackman, G.

AU - Kulp, W. D.

AU - Leach, K. G.

AU - Morton, A. C.

AU - Pearson, C. J.

AU - Phillips, A. A.

AU - Schumaker, M. A.

AU - Svensson, C. E.

AU - Wong, J.

AU - Wood, J. L.

AU - Yates, S. W.

PY - 2009/9/9

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AB - High-statistics β-decay measurements of Ag112 and In112 were performed to study the structure of the Cd112 nucleus. The precise energies of the doublet of levels at 1871 keV, for which the 0+ member has been suggested as a possible daughter state following neutrinoless double electron capture of Sn112, were determined to be 1871.137(72) keV (04+ level) and 1870.743(54) keV (42+ level). The nature of the 04+ level, required for the calculation of the nuclear matrix element that would be needed to extract a neutrino mass from neutrinoless double electron capture to this state, is suggested to be of intruder origin.

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Degeneracy at 1871 keV in Cd112 and implications for neutrinoless double electron capture

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