Publication Date
2004
Journal or Book Title
PHYSICS LETTERS B
Abstract
We derive a sum rule which establishes a linear relation between a particle's anomalous magnetic moment and a quantity connected to the photoabsorption cross section. This quantity cannot be measured directly. However, it can be computed within a given theory. As an example, we demonstrate validity of the sum rule in QED at tree level—the renowned Schwinger's correction to the anomalous magnetic moment is readily reproduced. In the case of the strong interactions, we also consider the calculation of the nucleon magnetic moment within chiral theories.
Pages
239-247
Volume
600
Issue
3-4
Recommended Citation
Pascalutsa, V; Holstein, BR; and Vanderhaeghen, M, "A derivative of the Gerasimov-Drell-Hearn sum rule" (2004). PHYSICS LETTERS B. 286.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/286
Comments
This is the pre-published version which is collected from arXiv. The published version is at http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVN-4D98CCD-4&_user=1516330&_coverDate=10%2F28%2F2004&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000053443&_version=1&_urlVersion=0&_userid=1516330&md5=54064bfd651495eb5b9a24cefbbe3193&searchtype=a