26th Australian Institute of Physics Congress and the Australian and New Zealand Conference on Optics and Photonics

Session

AIP NUPP: Flavour Physics 1

NUPP

8 Dec 2026, 11:00

Belinda Hutchinson Building (The University of Sydney )

Conveners

AIP NUPP: Flavour Physics 1

• Sam Michael Dekkers (Monash University (AU))

812. Recent Belle II results

Bruce Yabsley (University of Sydney)

08/12/2026, 11:00

AIP | Nuclear and Particle Physics (NUPP)

Invited talk

Recent Belle II results

437. Dark sector searches and tests of lepton flavour universality at Belle II

Daniel Marcantonio (University of Melbourne)

08/12/2026, 11:30

AIP | Nuclear and Particle Physics (NUPP)

Contributed Oral

The Belle II experiment at the SuperKEKB collider provides a unique environment for probing physics beyond the Standard Model through both direct dark sector searches and precision tests of lepton flavour universality (LFU). We present recent results on searches for light dark sector mediators, exploiting Belle II's clean collision environment, hermetic detector and dedicated low-multiplicity...

291. CP violation analysis of local and nonlocal amplitudes in the $\bar{B}^0 \rightarrow \bar{K}^{*0} \mu^+\mu^-$ decay.

Thomas Harris (Monash University (AU))

08/12/2026, 11:45

AIP | Nuclear and Particle Physics (NUPP)

Contributed Oral

The study of $CP$ violation is vital in unlocking new insights into the observed dominance of matter over antimatter in our universe. Electroweak penguin decays like $\bar{B}^0 \rightarrow \bar{K}^{*0} \mu^+\mu^-$ are of particular importance in this pursuit, as they are highly sensitive to $CP$ violation and/or new physics effects. To this end we performed a search for $CP$ violation in the...

507. Full event reconstruction using Graph Neural Networks in the Belle II experiment

Anthony Little (University of Sydney)

08/12/2026, 12:00

AIP | Nuclear and Particle Physics (NUPP)

Contributed Oral

We examine a new tool utilising Graph Neural Networks (GNNs) for particle reconstruction, to enable investigation of rare and physically interesting $B$-meson decays. Belle II is an experiment at the SuperKEKB asymmetric electron-positron collider at KEK in Japan, that studies large numbers of pairs of $B$ mesons produced at the Upsilon(4S) resonance. These $B$ mesons decay in a multitude of...

204. The role of event multiplicity in 𝛯cc++ production

Riccardo Bonacci (Monash University (AU))

08/12/2026, 12:15

AIP | Nuclear and Particle Physics (NUPP)

Contributed Oral

The LHCb (Large Hadron Collider beauty) experiment is one of the four main detectors at CERN's LHC, distinguished by its forward geometry and precision tracking, which make it especially well-suited to studying the production of heavy hadrons containing charm and beauty quarks. The large mass of these heavy (charm and beauty) quarks, means they must be created in hard interactions during the...