Non-relativistic expansion of single-nucleon Dirac equation: Comparison between Foldy-Wouthuysen transformation andsimilarity renormalization group *

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Bibliographische Detailangaben
Zeitschriftentitel:	Chinese Physics C
Personen und Körperschaften:	Guo, Yixin, Liang, Haozhao
In:	Chinese Physics C, 43, 2019, 11, S. 114105
Format:	E-Article
Sprache:	Unbestimmt
veröffentlicht:	IOP Publishing
Schlagwörter:	Astronomy and Astrophysics Instrumentation Nuclear and High Energy Physics

Details
Zusammenfassung:	<jats:title>Abstract</jats:title> <jats:p>By following the Foldy-Wouthuysen (FW) transformation of the Dirac equation, we derive the exact analytic expression up to the 1/<jats:italic>M</jats:italic> <jats:sup>4</jats:sup> order for general cases in the covariant density functional theory. The results are compared with the corresponding ones derived from another novel non-relativistic expansion method, the similarity renormalization group (SRG). Based on this comparison, the origin of the difference between the results obtained with the FW transformation and the SRG method is explored. </jats:p>
Umfang:	114105
ISSN:	2058-6132 1674-1137
DOI:	10.1088/1674-1137/43/11/114105