4 papers
Pion magnetic polarisability using the background field method
Ryan Bignell, Waseem Kamleh, Derek Leinweber
The magnetic polarisability is a fundamental property of hadrons, which provides insight into their structure in the low-energy regime. The pion magnetic polarisability is calculat…
Magnetic polarisability of the nucleon using a Laplacian mode projection
Ryan Bignell, Waseem Kamleh, Derek Leinweber
Conventional hadron interpolating fields, which utilise gauge-covariant Gaussian smearing, are ineffective in isolating ground state nucleons in a uniform background magnetic field…
Pion in a uniform background magnetic field with clover fermions
Ryan Bignell, Waseem Kamleh, Derek Leinweber
Background field methods provide an important nonperturbative formalism for the determination of hadronic properties which are complementary to matrix-element calculations. However…
Neutron magnetic polarisability with Landau mode operators
Ryan Bignell, Jonathan Hall, Waseem Kamleh +2
The application of a uniform background magnetic field makes standard quark operators utilising gauge-covariant Gaussian smearing inefficient at isolating the ground state nucleon…