Quark Condensate in a Weak Magnetic Field
Abstract
The low-temperature representation for the quark condensate in a weak magnetic field $H$ is known up to two-loop order. Remarkably, at one-loop order, the published series for the quark condensate in the chiral limit and $H \ll T^2$ are inconsistent. Using an alternative representation for the kinematical Bose functions, we derive the series to arbitrary order in $H/T^2$, and also determine which of the published results is correct.
- Publication:
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arXiv e-prints
- Pub Date:
- October 2017
- DOI:
- arXiv:
- arXiv:1710.05820
- Bibcode:
- 2017arXiv171005820H
- Keywords:
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- High Energy Physics - Phenomenology;
- High Energy Physics - Lattice;
- High Energy Physics - Theory
- E-Print:
- 17 pages, 1 figure