25–28 sept. 2023
LAPTh
Fuseau horaire Europe/Paris

King Fits: Global bounds on light new physics from isotope shifts

28 sept. 2023, 11:50
20m
Auditorium Vivargent (LAPTh)

Auditorium Vivargent

LAPTh

9 chemin de Bellevue Annecy-le-Vieux 74940 ANNECY

Orateurs

Fiona Kirk (PTB Braunschweig) Fiona Kirk

Description

Isotope shift frequencies figure among the most precisely measured physical quantities but are highly challenging to predict from first principles. In recent years King plots emerged as powerful data-driven tools that eliminate the theoretical uncertainties on the Standard Model nuclear parameters and can place bounds on new light mediators between neutrons and electrons.
We develop a framework for fits to isotope shift data that allows to take into account more data than conventional King-plot methods and discuss the significance of the King plot bounds for the search for light new physics.

Auteurs principaux

Fiona Kirk (PTB Braunschweig) Fiona Kirk

Documents de présentation