First lattice QCD extraction of octet baryon magnetic polarisabilities at mπ=156 MeV, enabled by a new exceptional-configuration removal algorithm.
Magnetic properties of the nucleon in a uniform background field
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abstract
We present results for the magnetic moment and magnetic polarisability of the neutron and the magnetic moment of the proton. These results are calculated using the uniform background field method on 32^3 x 64 dynamical QCD lattices provided by the PACS-CS collaboration as part of the ILDG. We use a uniform background magnetic field quantised by the periodic spatial volume. We investigate ways to improve the effective energy plots used to calculate magnetic polarisabilities, including the use of correlation matrix techniques with various source smearings.
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Magnetic polarisability of octet baryons near the physical quark-mass point
First lattice QCD extraction of octet baryon magnetic polarisabilities at mπ=156 MeV, enabled by a new exceptional-configuration removal algorithm.