Rearrangement of valence neutrons in the neutrinoless double-β decay of 136Xe

S. V. Szwec; B. P. Kay; T. E. Cocolios; J. P. Entwisle; S. J. Freeman; L. P. Gaffney; V. Guimarães; F. Hammache; P. P. McKee; E. Parr; C. Portail; J. P. Schiffer; N. de Séréville; D. K. Sharp; J. F. Smith; I. Stefan

doi:10.1103/PhysRevC.94.054314

Rearrangement of valence neutrons in the neutrinoless double-β decay of ¹³⁶Xe

S. V. Szwec, B. P. Kay, T. E. Cocolios, J. P. Entwisle, S. J. Freeman, L. P. Gaffney, V. Guimarães, F. Hammache, P. P. McKee, E. Parr, C. Portail, J. P. Schiffer, N. de Séréville, D. K. Sharp, J. F. Smith, I. Stefan

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Abstract

A quantitative description of the change in ground-state neutron occupancies between ¹³⁶Xe and ¹³⁶Ba, the initial and final state in the neutrinoless double-β decay of ¹³⁶Xe, has been extracted from precision measurements of the cross sections of single-neutron-adding and -removing reactions. Comparisons are made to recent theoretical calculations of the same properties using various nuclear-structure models. These are the same calculations used to determine the magnitude of the nuclear matrix elements for the process, which at present disagree with each other by factors of 2 or 3. The experimental neutron occupancies show some disagreement with the theoretical calculations.

Original language	English
Article number	054314
Journal	Physical Review C
Volume	94
DOIs	https://doi.org/10.1103/PhysRevC.94.054314
Publication status	Published - 15 Nov 2016

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2016 10 12 Szwec et al Rearrangement acceptedAccepted author manuscript, 493 KB

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Szwec, S. V., Kay, B. P., Cocolios, T. E., Entwisle, J. P., Freeman, S. J., Gaffney, L. P., Guimarães, V., Hammache, F., McKee, P. P., Parr, E., Portail, C., Schiffer, J. P., de Séréville, N., Sharp, D. K., Smith, J. F., & Stefan, I. (2016). Rearrangement of valence neutrons in the neutrinoless double-β decay of ¹³⁶Xe. Physical Review C, 94, Article 054314. https://doi.org/10.1103/PhysRevC.94.054314

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title = "Rearrangement of valence neutrons in the neutrinoless double-β decay of 136Xe",

abstract = "A quantitative description of the change in ground-state neutron occupancies between 136Xe and 136Ba, the initial and final state in the neutrinoless double-β decay of 136Xe, has been extracted from precision measurements of the cross sections of single-neutron-adding and -removing reactions. Comparisons are made to recent theoretical calculations of the same properties using various nuclear-structure models. These are the same calculations used to determine the magnitude of the nuclear matrix elements for the process, which at present disagree with each other by factors of 2 or 3. The experimental neutron occupancies show some disagreement with the theoretical calculations.",

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doi = "10.1103/PhysRevC.94.054314",

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AU - Szwec, S. V.

AU - Kay, B. P.

AU - Cocolios, T. E.

AU - Entwisle, J. P.

AU - Freeman, S. J.

AU - Gaffney, L. P.

AU - Guimarães, V.

AU - Hammache, F.

AU - McKee, P. P.

AU - Parr, E.

AU - Portail, C.

AU - Schiffer, J. P.

AU - de Séréville, N.

AU - Sharp, D. K.

AU - Smith, J. F.

AU - Stefan, I.

PY - 2016/11/15

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N2 - A quantitative description of the change in ground-state neutron occupancies between 136Xe and 136Ba, the initial and final state in the neutrinoless double-β decay of 136Xe, has been extracted from precision measurements of the cross sections of single-neutron-adding and -removing reactions. Comparisons are made to recent theoretical calculations of the same properties using various nuclear-structure models. These are the same calculations used to determine the magnitude of the nuclear matrix elements for the process, which at present disagree with each other by factors of 2 or 3. The experimental neutron occupancies show some disagreement with the theoretical calculations.

AB - A quantitative description of the change in ground-state neutron occupancies between 136Xe and 136Ba, the initial and final state in the neutrinoless double-β decay of 136Xe, has been extracted from precision measurements of the cross sections of single-neutron-adding and -removing reactions. Comparisons are made to recent theoretical calculations of the same properties using various nuclear-structure models. These are the same calculations used to determine the magnitude of the nuclear matrix elements for the process, which at present disagree with each other by factors of 2 or 3. The experimental neutron occupancies show some disagreement with the theoretical calculations.

U2 - 10.1103/PhysRevC.94.054314

DO - 10.1103/PhysRevC.94.054314

M3 - Article

SN - 2469-9985

VL - 94

JO - Physical Review C

JF - Physical Review C

M1 - 054314

ER -

Rearrangement of valence neutrons in the neutrinoless double-β decay of 136Xe

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Rearrangement of valence neutrons in the neutrinoless double-β decay of ¹³⁶Xe