E8: Short-distance nuclear matrix elements for neutrinoless double beta decay

28 Jul 2021, 15:00
1h
Poster QCD in searches for physics beyond the Standard Model Poster

Speaker

Patrick Oare (MIT)

Description

Neutrinoless double beta decay is a long-sought after process which would provide evidence of lepton number violation in our universe. Computing the rate from first principles requires non-perturbative input in the form of a nuclear matrix element which must be computed on the lattice. This poster will discuss the contribution to this matrix element from short-distance, dimension-9 operators. I will present the methods used to perform the computation, and show some preliminary results in which we evaluate this matrix element on an ensemble of domain-wall fermions for the unphysical $\pi^-\rightarrow \pi^+ e^- e^-$ decay.

Primary authors

David Murphy (Massachusetts Institute of Technology) Patrick Oare (MIT) Prof. Phiala Shanahan (Massachusetts Institute of Technology)

Presentation materials