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Benchmarking $^{136}$Xe Neutrinoless $\beta\beta$ Decay Matrix Element Calculations with the $^{138}{\rm Ba}(p,t)$ Reaction
- Source :
- Physics Letters B, 809, 135702 (2020)
- Publication Year :
- 2020
-
Abstract
- We used a high-resolution magnetic spectrograph to study neutron pair-correlated $0^+$ states in $^{136}$Ba, produced via the $^{138}{\rm Ba}(p,t)$ reaction. In conjunction with state-of-the-art shell model calculations, these data benchmark part of the dominant Gamow-Teller component of the nuclear matrix element (NME) for $^{136}$Xe neutrinoless double beta ($0\nu\beta\beta$) decay. We demonstrate for the first time an evaluation of part of a $0\nu\beta\beta$ decay NME by use of an experimental observable, presenting a new avenue of approach for more accurate calculations of $0\nu\beta\beta$ decay matrix elements.
- Subjects :
- Nuclear Experiment
Nuclear Theory
Subjects
Details
- Database :
- arXiv
- Journal :
- Physics Letters B, 809, 135702 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.2002.02987
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.physletb.2020.135702