Sum rules and the electromagnetic mass difference of pions

Journal Article (Journal Article)

Using the algebra of currents, we show that the electromagnetic pion mass-difference diverges in the soft-pion limit, if the usual spectral sum rules are assumed. We propose an altered sum rule which makes the result finite and in close agreement with experiment. © 1968.

Full Text

Duke Authors

Cited Authors

  • Cook, CL; Evans, LE; Han, MY; Lipshutz, NR; Straumann, N

Published Date

  • April 1, 1968

Published In

Volume / Issue

  • 5 / 1

Start / End Page

  • 140 - 146

International Standard Serial Number (ISSN)

  • 0550-3213

Digital Object Identifier (DOI)

  • 10.1016/0550-3213(68)90216-2

Citation Source

  • Scopus