| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10723103 | Physics Letters B | 2010 | 5 Pages |
Abstract
The relation between the heavy-quark field in QCD and the corresponding field in HQET is derived up to three loops, and to all orders in the large-β0 limit. The corresponding relation between the QED electron field and the Bloch-Nordsieck one is gauge invariant to all orders. We also prove that the MS¯ anomalous dimension of the QED electron field depends on the gauge parameter only at one loop.
Related Topics
Physical Sciences and Engineering
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Authors
A.G. Grozin,