Evidence for Rigid Triaxial Deformation in Ge76 from a Model-Independent Analysis
| العنوان: | Evidence for Rigid Triaxial Deformation in Ge76 from a Model-Independent Analysis |
|---|---|
| المؤلفون: | R. V. F. Janssens, H. L. Crawford, Alexandra Gade, D. Cline, D. Rhodes, D. J. Hartley, S. Stolze, M. Albers, A. D. Ayangeakaa, P. Fallon, M. P. Carpenter, W. B. Walters, D. Seweryniak, Krishichayan, Ching-Yen Wu, D. Little, P. Chowdhury, A. B. Hayes, A. M. Forney, A. O. Macchiavelli, Kalle Auranen, Jin Wu, J. Li, Jack Henderson, Brian Bucher, T. Lauritsen, F. G. Kondev, S. Zhu |
| المصدر: | Physical Review Letters. 123 |
| بيانات النشر: | American Physical Society (APS), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Physics, Basis (linear algebra), media_common.quotation_subject, General Physics and Astronomy, Coulomb excitation, Deformation (meteorology), Statistical fluctuations, 16. Peace & justice, 01 natural sciences, Asymmetry, Molecular physics, Matrix (mathematics), 0103 physical sciences, Quadrupole, 010306 general physics, Nuclear theory, media_common |
| الوصف: | An extensive, model-independent analysis of the nature of triaxial deformation in ^{76}Ge, 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 ^{76}Ge was obtained for the first time from the analysis of the statistical fluctuations of the quadrupole asymmetry deduced from the measured E2 matrix elements. 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. |
| تدمد: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.123.102501 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6b3fe3d724e1378a45fb5e5d13c11d6d https://doi.org/10.1103/physrevlett.123.102501 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........6b3fe3d724e1378a45fb5e5d13c11d6d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10797114 00319007 |
|---|---|
| DOI: | 10.1103/physrevlett.123.102501 |