Pion magnetic polarisability using the background field method
High Energy Physics - Lattice
2020-11-09 v2
Abstract
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.
Cite
@article{arxiv.2005.10453,
title = {Pion magnetic polarisability using the background field method},
author = {Ryan Bignell and Waseem Kamleh and Derek Leinweber},
journal= {arXiv preprint arXiv:2005.10453},
year = {2020}
}
Comments
7 pages, 3 Figures, 1 Table. Version published in Physics Letters B