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Pion magnetic polarisability using the background field method

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arxiv 2005.10453 v2 pith:HWITT3GF submitted 2020-05-21 hep-lat

Ryan Bignell , Waseem Kamleh , Derek Leinweber This is my paper · ORCID
classification hep-lat
keywords magneticpionpolarisabilitybackgroundcalculatedpropertyactionbackground-field
verification ladder T0 review T1 audit T2 compute T3 formal
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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.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Lattice QCD Study of Anomalous Transport Phenomena in Strongly Interacting Matter

    hep-lat 2025-09 conditional novelty 8.0 of 10

    First physical-point lattice QCD calculation of the Chiral Separation Effect conductivity, a zero equilibrium Chiral Magnetic Effect with conserved currents, and a localized equilibrium CME in inhomogeneous fields.

  2. Functional renormalization group study of anomalous magnetic moment in a low energy effective theory

    hep-ph 2025-06 conditional novelty 6.0 of 10

    In a magnetized two-flavor effective theory, quark anomalous magnetic moments are dynamically generated with chiral symmetry breaking, with the down quark moment roughly four times the up quark.

  3. Quarkonium spectra with magnetically induced anisotropic confinement

    hep-ph 2026-03 conditional novelty 5.0 of 10

    Radially excited charmonium masses fall sharply with magnetic field strength under lattice-inspired anisotropic confinement, while the ground state barely moves.

  4. Landau-Zener-St\"uckelberg-Majorana dynamics of magnetized quarkonia

    hep-ph 2025-12 conditional novelty 5.0 of 10

    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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