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arXiv · 2111.14133

A Pfaffian formulation for matrix elements of three-body operators in multiple quasi-particle configurations

Zi-Rui Chen·Long-Jun Wang
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Abstract

We present a Pfaffian formula to calculate matrix elements of three-body operators in symmetry-restoration beyond-mean-field methods, including the case of multiple quasi-particle configurations. Detailed derivation based on [Mizusaki et al., Phys. Lett. B 715, 219 (2012)] and [Hu et al., Phys. Lett. B 734, 162 (2014)] is provided, and potential applications in generator coordinate method with chiral interactions, as well as in study of nuclear matrix elements in neutrinoless double beta decay are discussed.

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Zi-Rui Chen, Long-Jun Wang. 2021-11-28. A Pfaffian formulation for matrix elements of three-body operators in multiple quasi-particle configurations. https://doi.org/10.1103/physrevc.105.034342

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