Benchmarking nuclear matrix elements of $0νββ$ decay with high-energy nuclear collisions
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911048166014976 |
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| author | Li, Yi Zhang, Xin Giacalone, Giuliano Yao, Jiangming |
| author_facet | Li, Yi Zhang, Xin Giacalone, Giuliano Yao, Jiangming |
| contents | Reducing uncertainties in the nuclear matrix elements (NMEs) remains a critical challenge in designing and interpreting experiments aimed at discovering neutrinoless double beta ($0νββ$) decay. Here, we identify a class of observables, distinct from those employed in low-energy nuclear structure applications, that are strongly correlated with the NMEs: momentum correlations among hadrons produced in high-energy nuclear collisions. Focusing on the $^{150}$Nd$\rightarrow$$^{150}$Sm transition, we combine a Bayesian analysis of the structure of $^{150}$Nd with simulations of high-energy $^{150}$Nd+$^{150}$Nd collisions. We reveal prominent correlations between the NMEs and features of the quark-gluon plasma (QGP) formed in these processes, such as spatial gradients and anisotropies, which are accessible via collective flow measurements. Our findings demonstrate collider experiments involving $0νββ$ decay candidates as a platform for benchmarking theoretical predictions of the NMEs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_08027 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Benchmarking nuclear matrix elements of $0νββ$ decay with high-energy nuclear collisions Li, Yi Zhang, Xin Giacalone, Giuliano Yao, Jiangming Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment Reducing uncertainties in the nuclear matrix elements (NMEs) remains a critical challenge in designing and interpreting experiments aimed at discovering neutrinoless double beta ($0νββ$) decay. Here, we identify a class of observables, distinct from those employed in low-energy nuclear structure applications, that are strongly correlated with the NMEs: momentum correlations among hadrons produced in high-energy nuclear collisions. Focusing on the $^{150}$Nd$\rightarrow$$^{150}$Sm transition, we combine a Bayesian analysis of the structure of $^{150}$Nd with simulations of high-energy $^{150}$Nd+$^{150}$Nd collisions. We reveal prominent correlations between the NMEs and features of the quark-gluon plasma (QGP) formed in these processes, such as spatial gradients and anisotropies, which are accessible via collective flow measurements. Our findings demonstrate collider experiments involving $0νββ$ decay candidates as a platform for benchmarking theoretical predictions of the NMEs. |
| title | Benchmarking nuclear matrix elements of $0νββ$ decay with high-energy nuclear collisions |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2502.08027 |