Constraint on 0νββ matrix elements from a novel decay channel of the scissors mode: the case of Gd154

J. Beller; N. Pietralla; J. Barea; M. Elvers; J. Endres; C. Fransen; J. Kotila; O. Möller; A. Richter; T. R. Rodríguez; C. Romig; D. Savran; M. Scheck; L. Schnorrenberger; K. Sonnabend; V. Werner; A. Zilges; M. Zweidinger

doi:10.1103/PhysRevLett.111.172501

Constraint on 0νββ matrix elements from a novel decay channel of the scissors mode: the case of Gd154

J. Beller, N. Pietralla, J. Barea, M. Elvers, J. Endres, C. Fransen, J. Kotila, O. Möller, A. Richter, T. R. Rodríguez, C. Romig, D. Savran, M. Scheck, L. Schnorrenberger, K. Sonnabend, V. Werner, A. Zilges, M. Zweidinger

School of Computing, Engineering and Physical Sciences

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

26 Citations (Scopus)

Abstract

The nucleus Gd154 is located in a region of the nuclear chart where rapid changes of nuclear deformation occur as a function of particle number. It was investigated using a combination of γ-ray scattering experiments and a γγ-coincidence study following electron capture decay of Tbm154. A novel decay channel from the scissors mode to the first excited 0+ state was observed. Its transition strength was determined to B(M1;1+sc→0+2)=0.031(4)μ2N. The properties of the scissors mode of Gd154 imply a much larger matrix element than previously thought for the neutrinoless double-β decay to the 0+2 state in such a shape-transitional region. Theory indicates an even larger effect for Nd150.

Original language	English
Article number	172501
Journal	Physical Review Letters
Volume	111
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.111.172501
Publication status	Published - 1 Oct 2013

Keywords

beta-decay
nuclei
neutrinos

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Beller, J., Pietralla, N., Barea, J., Elvers, M., Endres, J., Fransen, C., Kotila, J., Möller, O., Richter, A., Rodríguez, T. R., Romig, C., Savran, D., Scheck, M., Schnorrenberger, L., Sonnabend, K., Werner, V., Zilges, A., & Zweidinger, M. (2013). Constraint on 0νββ matrix elements from a novel decay channel of the scissors mode: the case of Gd154. Physical Review Letters, 111(17), Article 172501. https://doi.org/10.1103/PhysRevLett.111.172501

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title = "Constraint on 0νββ matrix elements from a novel decay channel of the scissors mode: the case of Gd154",

abstract = "The nucleus Gd154 is located in a region of the nuclear chart where rapid changes of nuclear deformation occur as a function of particle number. It was investigated using a combination of γ-ray scattering experiments and a γγ-coincidence study following electron capture decay of Tbm154. A novel decay channel from the scissors mode to the first excited 0+ state was observed. Its transition strength was determined to B(M1;1+sc→0+2)=0.031(4)μ2N. The properties of the scissors mode of Gd154 imply a much larger matrix element than previously thought for the neutrinoless double-β decay to the 0+2 state in such a shape-transitional region. Theory indicates an even larger effect for Nd150.",

keywords = "beta-decay, nuclei, neutrinos",

author = "J. Beller and N. Pietralla and J. Barea and M. Elvers and J. Endres and C. Fransen and J. Kotila and O. M{\"o}ller and A. Richter and Rodr{\'i}guez, \{T. R.\} and C. Romig and D. Savran and M. Scheck and L. Schnorrenberger and K. Sonnabend and V. Werner and A. Zilges and M. Zweidinger",

year = "2013",

month = oct,

day = "1",

doi = "10.1103/PhysRevLett.111.172501",

language = "English",

volume = "111",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "17",

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Beller, J, Pietralla, N, Barea, J, Elvers, M, Endres, J, Fransen, C, Kotila, J, Möller, O, Richter, A, Rodríguez, TR, Romig, C, Savran, D, Scheck, M, Schnorrenberger, L, Sonnabend, K, Werner, V, Zilges, A & Zweidinger, M 2013, 'Constraint on 0νββ matrix elements from a novel decay channel of the scissors mode: the case of Gd154', Physical Review Letters, vol. 111, no. 17, 172501. https://doi.org/10.1103/PhysRevLett.111.172501

TY - JOUR

T1 - Constraint on 0νββ matrix elements from a novel decay channel of the scissors mode

T2 - the case of Gd154

AU - Beller, J.

AU - Pietralla, N.

AU - Barea, J.

AU - Elvers, M.

AU - Endres, J.

AU - Fransen, C.

AU - Kotila, J.

AU - Möller, O.

AU - Richter, A.

AU - Rodríguez, T. R.

AU - Romig, C.

AU - Savran, D.

AU - Scheck, M.

AU - Schnorrenberger, L.

AU - Sonnabend, K.

AU - Werner, V.

AU - Zilges, A.

AU - Zweidinger, M.

PY - 2013/10/1

Y1 - 2013/10/1

N2 - The nucleus Gd154 is located in a region of the nuclear chart where rapid changes of nuclear deformation occur as a function of particle number. It was investigated using a combination of γ-ray scattering experiments and a γγ-coincidence study following electron capture decay of Tbm154. A novel decay channel from the scissors mode to the first excited 0+ state was observed. Its transition strength was determined to B(M1;1+sc→0+2)=0.031(4)μ2N. The properties of the scissors mode of Gd154 imply a much larger matrix element than previously thought for the neutrinoless double-β decay to the 0+2 state in such a shape-transitional region. Theory indicates an even larger effect for Nd150.

AB - The nucleus Gd154 is located in a region of the nuclear chart where rapid changes of nuclear deformation occur as a function of particle number. It was investigated using a combination of γ-ray scattering experiments and a γγ-coincidence study following electron capture decay of Tbm154. A novel decay channel from the scissors mode to the first excited 0+ state was observed. Its transition strength was determined to B(M1;1+sc→0+2)=0.031(4)μ2N. The properties of the scissors mode of Gd154 imply a much larger matrix element than previously thought for the neutrinoless double-β decay to the 0+2 state in such a shape-transitional region. Theory indicates an even larger effect for Nd150.

KW - beta-decay

KW - nuclei

KW - neutrinos

U2 - 10.1103/PhysRevLett.111.172501

DO - 10.1103/PhysRevLett.111.172501

M3 - Article

SN - 0031-9007

VL - 111

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

M1 - 172501

ER -

Constraint on 0νββ matrix elements from a novel decay channel of the scissors mode: the case of Gd154

Abstract

Keywords

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