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Pion magnetic polarisability using the background field method
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Pion magnetic polarisability using the background field method
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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 calculated using lattice QCD in the presence of background magnetic fields. The results presented are facilitated by the introduction of a new magnetic-field dependent quark-propagator eigenmode projector and the use of the background-field corrected clover fermion action. The magnetic polarisabilities are calculated in a relativistic formalism, and the excellent signal-to-noise property of pion correlation functions facilitates precise values.
Forward citations
Cited by 4 Pith papers
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Radially excited charmonium masses fall sharply with magnetic field strength under lattice-inspired anisotropic confinement, while the ground state barely moves.
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A Landau-Zener Hamiltonian fitted to the static charmonium spectrum predicts that fast magnetic-field sweeps drive nonadiabatic transitions between charmonium states, with Stückelberg interference controlling final po...
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