7–11 Dec 2026
The University of Sydney
Australia/Sydney timezone
AIP Congress 2026

The Unique Capacity of Tauonic Atoms to Probe Nuclear Charge Distributions

Not scheduled
20m
Belinda Hutchinson Building (The University of Sydney )

Belinda Hutchinson Building

The University of Sydney

Abercrombie St & Codrington St NSW 2008
Poster AIP | Theoretical Physics (TPG)

Speaker

Jack Morrow (The University of Queensland)

Description

The high mass of tauons means that many of the low-$n$ tauonic atom wavefunctions overlap significantly with the nucleus, making tauonic atoms ideal probes of nuclear structure. We begin with simulations of the cascade from the initial state to the ground state to show that a measurable number of tauons would reach the $1s$ orbital before decaying via the weak force. We also do sample fits to the 2-parameter Fermi distribution for nuclear charge density to benchmark tauonic atoms against muonic atoms, and we find that the $1\sigma$ bound in parameter space from on tauonic atoms is significantly smaller compared to muonic atoms. We demonstrate the unique ability of tauonic atoms to precisely specify a third nuclear parameter by performing a sample fit to the 3-parameter Fermi distribution for a heavy tauonic atom, which is not possible with muonic atoms.

I am the presenting author Yes

Author

Jack Morrow (The University of Queensland)

Co-author

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