5–9 Dec 2022
Australia/Sydney timezone

Searching for new bosons in atomic spectra

5 Dec 2022, 15:00
20m
229 (Old Main Building)

229

Old Main Building

Speaker

Pavel Fadeev (Helmholtz Institute Mainz, Johannes Gutenberg University, 55128 Mainz, Germany)

Description

We shall explain why we expect atomic spectra to be sensitive to new bosons, like Z' boson and axion. Such bosons can be exchanged between the known particles. We will present new bounds on the properties of such bosons, using spectra of antiprotonic helium, muonium, positronium, helium, and hydrogen. We will show how to construct such bounds, including one using pseudovector interaction which is inversely proportional to the boson's mass squared.
Phys. Rev. A 105, 022812 (2022).
Combining results from different experiments, we compare bounds on spin-dependent interactions from a review in the making.

Authors

DMITRY BUDKER (Helmholtz Institute Mainz and UC Berkeley) Mr Filip Ficek (Marian Smoluchowski Institute of Physics, Jagiellonian University) Mikhail Kozlov (Petersburg Nuclear Physics Institute) Pavel Fadeev (Helmholtz Institute Mainz, Johannes Gutenberg University, 55128 Mainz, Germany) Victor Flambaum (University of New South Wales)

Presentation materials