A study of hadron electric polarizability in quenched lattice QCD

The dependence of neutral hadron masses on external static electric fields is studied in quenched lattice QCD using the staggered fermion scheme. Electric polarizabilities are extracted for the pseudoscalar meson and the baryon at four quark masses. The vector meson polarizability cannot be reliably...

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Bibliographic Details
Published in:Nuclear physics. B 1989-09, Vol.324 (1), p.47-66
Main Authors: Fiebig, H.R., Wilcox, W., Woloshyn, R.M.
Format: Article
Language:English
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Summary:The dependence of neutral hadron masses on external static electric fields is studied in quenched lattice QCD using the staggered fermion scheme. Electric polarizabilities are extracted for the pseudoscalar meson and the baryon at four quark masses. The vector meson polarizability cannot be reliably obtained from the present set of lattice data. The calculated neutron polarizability is in very good agreement with a recent experimental result. Our result for the pseudoscalar meson is about one quarter of that of the neutron.
ISSN:0550-3213
1873-1562
DOI:10.1016/0550-3213(89)90180-6