Saturation of the Drell-Hearn-Gerasimov sum rule reexamined
Authors:
- 1 March 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 45 (5) , 1789-1791
Abstract
The isospin decomposed Drell-Hearn-Gerasimov sum rule is examined. The single-pion photoproduction contribution is integrated out to 1.7 GeV in the laboratory photon energy. We obtain an improved estimate of the contribution of this process to the isovector and isovector-isoscalar sum rules. The qualitative features of Karliner's results remain valid. The isoscalar sum rule shows no indication of convergence.Keywords
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