QUARK CONDENSATE IN A MAGNETIC-FIELD

Authors
SHUSHPANOV IA SMILGA AV
Citation
Ia. Shushpanov et Av. Smilga, QUARK CONDENSATE IN A MAGNETIC-FIELD, Physics letters. Section B, 402(3-4), 1997, pp. 351-358
Citations number
27
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
402
Issue
3-4
Year of publication
1997
Pages
351 - 358
Database
ISI
SICI code
0370-2693(1997)402:3-4<351:QCIAM>2.0.ZU;2-1
Abstract
We study the dependence of quark condensate Sigma on an external magne tic field. For weak fields, it rises linearly: Sigma(H) = Sigma(0)[1 eH ln 2/(16 pi(2)F(pi)(2)) + ...]. M-pi and F-pi are also shifted so that the Gell-Mann-Oakes-Renner relation is satisfied. In the strong f ield region, Sigma(H) proportional to (eH)(3/2). (C) 1997 Published by Elsevier Science B.V.