18–24 Aug 2024
Cairns, Queensland, Australia
Australia/Brisbane timezone

Constraining beyond the Standard Model nucleon isovector charges

19 Aug 2024, 16:20
20m
M3

M3

Oral E: QCD and New Physics QCD and New Physics

Speaker

Dr James Zanotti (The University of Adelaide)

Description

At the TeV scale, low-energy precision observations of neutron characteristics provide unique probes of novel physics. Precision studies of neutron decay observables are susceptible to beyond the Standard Model (BSM) tensor and scalar interactions, while the neutron electric dipole moment, $d_n$, also has high sensitivity to new BSM CP-violating interactions. To fully utilise the potential of future experimental neutron physics programs, matrix elements of appropriate low-energy effective operators within neutron states must be precisely calculated. We present results from the QCDSF/UKQCD/CSSM collaboration for the isovector charges $g_T$ , $g_A$ and $g_S$ of the nucleon, $\Sigma$ and $\Xi$ baryons using lattice QCD methods and the Feynman-Hellmann theorem.

Author

Dr James Zanotti (The University of Adelaide)

Presentation materials