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16–21 Aug 2019
Guilin Bravo Hotel, Guilin, China
Asia/Shanghai timezone

Constraining BSM physics by precision hadron calculations

21 Aug 2019, 16:40
35m
Grand Room (Guilin Bravo Hotel, Guilin, China)

Grand Room

Guilin Bravo Hotel, Guilin, China

14 South Ronghu Road, Xiangshan, Guilin 541002, Guangxi, China
Plenary Plenary Plenary session

Speaker

Dr Emanuele Mereghetti (LANL)

Description

Low-energy tests of fundamental symmetries are extremely sensitive probes of physics beyond the Standard Model (SM), reaching scales that are comparable, if not higher, than directly accessible at the energy frontier. The interpretation of low-energy precision experiments and their connection with models of BSM physics relies on controlling the theoretical uncertainties induced by the nonperturbative nature of QCD at low energy and of the nuclear interactions. In this talk I will discuss how Effective Field Theories techniques can lead to improved predictions for low-energy experiments, with controlled theoretical uncertainties. I will first introduce an EFT framework for the description of neutrinoless double beta decay. I will show how the EFT allows to derive a very general parameterization of the double beta rate, which captures but goes beyond the standard scenario of light Majorana neutrino exchange, and to construct the double beta transition operators in a consistent power counting. I will then review recent progress in the calculation of electric dipole moments of the nucleon and of light nuclei, and address the remaining challenges for a smooth connection between experiments and theories of physics beyond the Standard Model.

Primary author

Presentation materials