Evidence for Rigid Triaxial Deformation in Ge76 from a Model-Independent Analysis

Ayangeakaa, A. D.; Janssens, R. V. F.; Zhu, S.; Little, D.; Henderson, J.; Wu, C. Y.; Hartley, D. J.; Albers, M.; Auranen, K.; Bucher, B.; Carpenter, M. P.; Chowdhury, P.; Cline, D.; Crawford, H. L.; Fallon, P.; Forney, A. M.; Gade, A.; Hayes, A. B.; Kondev, F. G.; Krishichayan, .; Lauritsen, T.; Li, J.; Macchiavelli, A. O.; Rhodes, D.; Seweryniak, D.; Stolze, S. M.; Walters, W. B.; Wu, J.

doi:10.1103/physrevlett.123.102501

Title: Evidence for Rigid Triaxial Deformation in ${}^{76}{Ge}$ from a Model-Independent Analysis

Journal Article · 06 September 2019 · Physical Review Letters

DOI: https://doi.org/10.1103/physrevlett.123.102501 · OSTI ID:1575067

^[1]; Janssens, R. V. F. ^[2]; Zhu, S. ^[3]; Little, D. ^[2]; Henderson, J. ^[4]; Wu, C. Y. ^[4]; Hartley, D. J. ^[1]; Albers, M. ^[5]; Auranen, K. ^[5]; Bucher, B. ^[6]; Carpenter, M. P. ^[5]; Chowdhury, P. ^[7]; Cline, D. ^[8]; Crawford, H. L. ^[9]; Fallon, P. ^[9]; Forney, A. M. ^[10]; Gade, A. ^[11]; Hayes, A. B. ^[8]; Kondev, F. G. ^[5]; Krishichayan, . ^[12] more »

United States Naval Academy, Annapolis, MD (United States). Dept. of Physics
Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Physics and Astronomy; Duke Univ., Durham, NC (United States). Triangle Univ. Nuclear Lab.
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Div.; Brookhaven National Lab. (BNL), Upton, NY (United States). National Nuclear Data Center
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Div.
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Idaho National Lab. (INL), Idaho Falls, ID (United States)
Univ. of Massachusetts, Lowell, MA (United States). Dept. of Physics and Applied Physics
Univ. of Rochester, Rochester, NY (United States). Dept. of Physics and Astronomy
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Div.
Univ. of Maryland, College Park, MD (United States). Dept. of Chemistry and Biochemistry
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. and Dept. of Physics and Astronomy
Duke Univ., Durham, NC (United States). Triangle Univ. Nuclear Lab. and Dept. of Physics

An extensive, model-independent analysis of the nature of triaxial deformation in ⁷⁶Ge, a candidate for neutrinoless double-beta (0νββ) decay, was carried out following multistep Coulomb excitation. Shape parameters deduced on the basis of a rotational-invariant sum-rule analysis provided considerable insight into the underlying collectivity of the ground-state and γ bands. Both sequences were determined to be characterized by the same β and γ deformation parameter values. In addition, compelling evidence for low-spin, rigid triaxial deformation in ⁷⁶Ge was obtained for the first time from the analysis of the statistical fluctuations of the quadrupole asymmetry deduced from the measured E2 matrix elements. Furthermore, these newly determined shape parameters are important input and constraints for calculations aimed at providing, with suitable accuracy, the nuclear matrix elements relevant to 0νββ.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); University of North Carolina, Chapel Hill, NC (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); USDOE Office of Science (SC), Nuclear Physics (NP); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC02-06CH11357; AC52-07NA27344; AC02-05CH11231; FG02-97ER41041; FG02-97ER41033; FG02-08ER41556; FG02-94ER40848; FG02-94ER4084; PHY-15655464; PHY-1811855; PHY-1502092

OSTI ID:: 1575067

Alternate ID(s):: OSTI ID: 1560733; OSTI ID: 1578251; OSTI ID: 1658906; OSTI ID: 1659324

Report Number(s):: LLNL-JRNL-778285; PRLTAO; 153280; TRN: US2100165

Journal Information:: Physical Review Letters, Vol. 123, Issue 10; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 27 works

Citation information provided by
Web of Science

References (42)

Triaxiality in selenium-76 Henderson, J.; Wu, C. Y.; Ash, J. Physical Review C, Vol. 99, Issue 5 https://doi.org/10.1103/PhysRevC.99.054313	journal	May 2019
Systematic study of nuclear matrix elements in neutrinoless double- β decay with a beyond-mean-field covariant density functional theory Yao, J. M.; Song, L. S.; Hagino, K. Physical Review C, Vol. 91, Issue 2 https://doi.org/10.1103/PhysRevC.91.024316	journal	February 2015
Neutrinoless double- β decay of deformed nuclei within quasiparticle random-phase approximation with a realistic interaction Fang, Dong-Liang; Faessler, Amand; Rodin, Vadim Physical Review C, Vol. 83, Issue 3 https://doi.org/10.1103/PhysRevC.83.034320	journal	March 2011
Rotational states in even atomic nuclei Davydov, A. S.; Filippov, G. F. Nuclear Physics, Vol. 8 https://doi.org/10.1016/0029-5582(58)90153-6	journal	September 1958
Role of triaxiality in ⁷⁶ Ge and ⁷⁶ Se nuclei studied with Gogny energy density functionals Rodríguez, Tomás R. Journal of Physics G: Nuclear and Particle Physics, Vol. 44, Issue 3 https://doi.org/10.1088/1361-6471/aa57d3	journal	February 2017
Nuclear Structure Relevant to Neutrinoless Double β Decay: Ge 76 and Se 76 Schiffer, J. P.; Freeman, S. J.; Clark, J. A. Physical Review Letters, Vol. 100, Issue 11 https://doi.org/10.1103/PhysRevLett.100.112501	journal	March 2008
Description of the Rigid Triaxial Deformation at Low Energy in ⁷⁶ Ge with the Proton-Neutron Interacting Model IBM2 Zhang, Da-Li; Ding, Bin-Gang Chinese Physics Letters, Vol. 30, Issue 12 https://doi.org/10.1088/0256-307X/30/12/122101	journal	December 2013
Multiple Coulomb excitation of a ⁷⁶ Ge beam Toh, Y.; Czosnyka, T.; Oshima, M. Journal of Physics G: Nuclear and Particle Physics, Vol. 27, Issue 7 https://doi.org/10.1088/0954-3899/27/7/307	journal	June 2001
The MAJORANA DEMONSTRATOR Neutrinoless Double-Beta Decay Experiment Abgrall, N.; Aguayo, E.; Avignone, F. T. Advances in High Energy Physics, Vol. 2014 https://doi.org/10.1155/2014/365432	journal	January 2014
Nuclear Data Sheets Update for A = 76 Singh, Balraj Nuclear Data Sheets, Vol. 74, Issue 1 https://doi.org/10.1006/ndsh.1995.1005	journal	January 1995
Nuclear structure relevant to neutrinoless double β decay: The valence protons in Ge 76 and Se 76 Kay, B. P.; Schiffer, J. P.; Freeman, S. J. Physical Review C, Vol. 79, Issue 2 https://doi.org/10.1103/PhysRevC.79.021301	journal	February 2009
Microscopic analysis of shape evolution and triaxiality in germanium isotopes Nikšić, T.; Marević, P.; Vretenar, D. Physical Review C, Vol. 89, Issue 4 https://doi.org/10.1103/PhysRevC.89.044325	journal	April 2014
High-spin structure of neutron-rich Se, As, Ge, and Ga isotopes Yoshinaga, N.; Higashiyama, K.; Regan, P. H. Physical Review C, Vol. 78, Issue 4 https://doi.org/10.1103/PhysRevC.78.044320	journal	October 2008
Nuclear Shapes Studied by Coulomb Excitation Cline, D. Annual Review of Nuclear and Particle Science, Vol. 36, Issue 1 https://doi.org/10.1146/annurev.ns.36.120186.003343	journal	December 1986
Inelastic neutron scattering studies of Se 76 Mukhopadhyay, S.; Crider, B. P.; Brown, B. A. Physical Review C, Vol. 99, Issue 1 https://doi.org/10.1103/PhysRevC.99.014313	journal	January 2019
Intrinsic Quadrupole Moments and Shapes of Nuclear Ground States and Excited States Kumar, Krishna Physical Review Letters, Vol. 28, Issue 4 https://doi.org/10.1103/PhysRevLett.28.249	journal	January 1972
Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review Engel, Jonathan; Menéndez, Javier Reports on Progress in Physics, Vol. 80, Issue 4 https://doi.org/10.1088/1361-6633/aa5bc5	journal	March 2017
Surface Oscillations in Even-Even Nuclei Wilets, Lawrence; Jean, Maurice Physical Review, Vol. 102, Issue 3 https://doi.org/10.1103/PhysRev.102.788	journal	May 1956
Coulomb-excitation studies of Ge 70 , Ge 72 , Ge 74 , and Ge 76 Lecomte, R.; Irshad, M.; Landsberger, S. Physical Review C, Vol. 22, Issue 6 https://doi.org/10.1103/PhysRevC.22.2420	journal	December 1980
Evidence of a spherical to prolate shape transition in the germanium nuclei Lecomte, R.; Irshad, M.; Landsberger, S. Physical Review C, Vol. 22, Issue 4 https://doi.org/10.1103/PhysRevC.22.1530	journal	October 1980
Shape coexistence and the role of axial asymmetry in 72Ge Ayangeakaa, A. D.; Janssens, R. V. F.; Wu, C. Y. Physics Letters B, Vol. 754 https://doi.org/10.1016/j.physletb.2016.01.036	journal	March 2016
Nuclear structure of Ge 76 from inelastic neutron scattering measurements and shell model calculations Mukhopadhyay, S.; Crider, B. P.; Brown, B. A. Physical Review C, Vol. 95, Issue 1 https://doi.org/10.1103/PhysRevC.95.014327	journal	January 2017
Novel Δ J = 1 Sequence in Ge 78 : Possible Evidence for Triaxiality Forney, A. M.; Walters, W. B.; Chiara, C. J. Physical Review Letters, Vol. 120, Issue 21 https://doi.org/10.1103/PhysRevLett.120.212501	journal	May 2018
Quadrupole collectivity and shapes of OsPt nuclei Wu, C. Y.; Cline, D.; Czosnyka, T. Nuclear Physics A, Vol. 607, Issue 2 https://doi.org/10.1016/0375-9474(96)00181-9	journal	September 1996
CHICO2, a two-dimensional pixelated parallel-plate avalanche counter Wu, C. Y.; Cline, D.; Hayes, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 814 https://doi.org/10.1016/j.nima.2016.01.034	journal	April 2016
Large-scale calculations of the double- β decay of 76 Ge , 130 Te , 136 Xe , and 150 Nd in the deformed self-consistent Skyrme quasiparticle random-phase approximation Mustonen, M. T.; Engel, J. Physical Review C, Vol. 87, Issue 6 https://doi.org/10.1103/PhysRevC.87.064302	journal	June 2013
Octupole correlations in low-lying states of Nd 150 and Sm 150 and their impact on neutrinoless double- β decay Yao, J. M.; Engel, J. Physical Review C, Vol. 94, Issue 1 https://doi.org/10.1103/PhysRevC.94.014306	journal	July 2016
Search for Neutrinoless Double- β Decay in Ge 76 with the Majorana Demonstrator Aalseth, C. E.; Abgrall, N.; Aguayo, E. Physical Review Letters, Vol. 120, Issue 13 https://doi.org/10.1103/PhysRevLett.120.132502	journal	March 2018
Limits on Neutrino Masses from Neutrinoless Double- β Decay Barea, J.; Kotila, J.; Iachello, F. Physical Review Letters, Vol. 109, Issue 4 https://doi.org/10.1103/PhysRevLett.109.042501	journal	July 2012
Relativistic nuclear energy density functionals: Adjusting parameters to binding energies Nikšić, T.; Vretenar, D.; Ring, P. Physical Review C, Vol. 78, Issue 3 https://doi.org/10.1103/PhysRevC.78.034318	journal	September 2008
Nature of γ deformation in Ge and Se nuclei and the triaxial projected shell model description Bhat, G. H.; Dar, W. A.; Sheikh, J. A. Physical Review C, Vol. 89, Issue 1 https://doi.org/10.1103/PhysRevC.89.014328	journal	January 2014
The performance of the Gamma-Ray Energy Tracking In-beam Nuclear Array GRETINA Paschalis, S.; Lee, I. Y.; Macchiavelli, A. O. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 709 https://doi.org/10.1016/j.nima.2013.01.009	journal	May 2013
The search for neutrinoless double beta decay Gomez-Cadenas, J. J.; Martin-Albo, J.; Mezzetto, M. La Rivista Del Nuovo Cimento https://doi.org/10.1393/ncr/i2012-10074-9	journal	January 2012
Experimental and theoretical investigations of quadrupole collective degrees of freedom in 104Ru Srebrny, J.; Czosnyka, T.; Droste, Ch. Nuclear Physics A, Vol. 766 https://doi.org/10.1016/j.nuclphysa.2005.11.013	journal	February 2006
Background-free search for neutrinoless double-β decay of 76Ge with GERDA Collaboration, Gerda Nature, Vol. 544, Issue 7648, p. 47-52 https://doi.org/10.1038/nature21717	journal	April 2017
Results on Neutrinoless Double- β Decay of Ge 76 from Phase I of the GERDA Experiment Agostini, M.; Allardt, M.; Andreotti, E. Physical Review Letters, Vol. 111, Issue 12 https://doi.org/10.1103/PhysRevLett.111.122503	journal	September 2013
Staggering in γ-band energies and the transition between different structural symmetries in nuclei McCutchan, E. A.; Bonatsos, Dennis; Zamfir, N. V. Physical Review C, Vol. 76, Issue 2 https://doi.org/10.1103/PhysRevC.76.024306	journal	August 2007
Heavy-ion Coulomb excitation of 72Ge Kotliński, B.; Czosnyka, T.; Cline, D. Nuclear Physics A, Vol. 519, Issue 3 https://doi.org/10.1016/0375-9474(90)90451-Q	journal	December 1990
Energy Density Functional Study of Nuclear Matrix Elements for Neutrinoless β β Decay Rodríguez, Tomás R.; Martínez-Pinedo, Gabriel Physical Review Letters, Vol. 105, Issue 25 https://doi.org/10.1103/PhysRevLett.105.252503	journal	December 2010
Evidence for rigid triaxial deformation at low energy in 76 Ge Toh, Y.; Chiara, C. J.; McCutchan, E. A. Physical Review C, Vol. 87, Issue 4 https://doi.org/10.1103/PhysRevC.87.041304	journal	April 2013
Relativistic Nuclear Energy Density Functionals: adjusting parameters to binding energies Niksic, T.; Vretenar, D.; Ring, P. arXiv https://doi.org/10.48550/arxiv.0809.1375	text	January 2008
Shape coexistence and the role of axial asymmetry in $^{72}$Ge Ayangeakaa, A. D.; Janssens, R. V. F.; Wu, C. Y. arXiv https://doi.org/10.48550/arxiv.1603.04484	text	January 2016

Similar Records

Shape Coexistence at Zero Spin in

{}^{64}{Ni}

Driven by the Monopole Tensor Interaction

Journal Article · 2020 · Physical Review Letters · OSTI ID:1657324

Mărginean, N.; Little, D.; Tsunoda, Y.; +76 more

Triaxiality and the nature of low-energy excitations in Ge76

Journal Article · 2023 · Physical Review. C · OSTI ID:1970693

Ayangeakaa, A. D.; Janssens, R. V. F.; Zhu, S.; +27 more

Novel

Δ J = 1

Sequence in

{}^{78}{Ge}

: Possible Evidence for Triaxiality

Journal Article · 2018 · Physical Review Letters · OSTI ID:1438428

Forney, A. M.; Walters, W. B.; Chiara, C. J.; +17 more

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Collective models
Nuclear density functional theory
Nuclear many-body theory
Nuclear structure & decays
Nuclear tests of fundamental interactions
Shell model
Physics - Nuclear physics and radiation physics

Title: Evidence for Rigid Triaxial Deformation in Ge 76 from a Model-Independent Analysis

Citation Formats

References (42)

Similar Records

Related Subjects

Title: Evidence for Rigid Triaxial Deformation in ${}^{76}{Ge}$ from a Model-Independent Analysis