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INT Online S@INT seminar:  "Effective Field Theory Approach to Neutrinoless Double Beta Decay"

Vincenzo Cirigliano, Los Alamos National Lab
Tuesday, May 26, 2020 - 10:30am


In this talk I will discuss neutrinoless double beta decay and  lepton number violation (LNV). 

I will describe an end-to-end effective field theory (EFT) framework connecting the possibly very high  scale at which LNV originates to the nuclear scale.  Such a framework is crucial to assess the discovery potential and model diagnosing power of neutrinoless double beta decay searches.  At the high-energy end,   the EFT allows one to classify the various sources of LNV.  At the low-energy end,  the EFT  allows one to organize contributions to hadronic and nuclear matrix elements in a systematic expansion, which is the basis to reach controlled uncertainties in the near future. I will  discuss recent developments in the EFT approach and illustrate the framework through explicit examples,  such as the high-scale seesaw and the TeV scale  left-right-symmetric model. 

Zoom link will be available via announcement email, or by contacting: stroberg[at]

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