Quark condensate in a magnetic field

We study the dependence of quark condensate Σ on an external magnetic field. For weak fields, it rises linearly: Σ(H) = Σ(0) [1 + eH ln2 (16π 2F π 2) + …] . M π and F π are also shifted so that the Gell-Mann-Oakes-Renner relation is satisfied. In the strong field region, Σ(H) α (eH) 3 2 .

Saved in:
Bibliographic Details
Published in:Physics letters. B 1997-06, Vol.402 (3), p.351-358
Main Authors: Shushpanov, I.A., Smilga, A.V.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study the dependence of quark condensate Σ on an external magnetic field. For weak fields, it rises linearly: Σ(H) = Σ(0) [1 + eH ln2 (16π 2F π 2) + …] . M π and F π are also shifted so that the Gell-Mann-Oakes-Renner relation is satisfied. In the strong field region, Σ(H) α (eH) 3 2 .
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(97)00441-3