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标题：Magnetic polarizability of hadrons in the background field method
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作者：F. Lee ; L. Zhou ; W. Wilcox 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2005
卷号：2005
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a calculation of hadron magnetic polarizability using the techniques of lattice QCD. This is carried out by introducing a uniform external magnetic field on the lattice and measuring the quadratic part of a hadron’s mass shift. The calculation is performed on a 244 lattice with standard Wilson actions at beta=6.0 (spacing a = 0.1 fm) and pion mass down to about 500 MeV. Results are obtained for 30 particles covering the entire baryon octet (n, p, S0, S−, S+, X−, X0, L ) and decuplet (D0, D−, D+, D++, S0, S−, S+, X0, X−, W−), plus selected mesons (p0, p+, p−, K0, K+, K−, r0, r+, r−, K0, K+, K−). The results are compared with available values from experiments and other theoretical calculations.