Chiral corrections to matrix elements of twist-2 operators
β Scribed by Daniel Arndt; Martin J. Savage
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 121 KB
- Volume
- 697
- Category
- Article
- ISSN
- 0375-9474
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β¦ Synopsis
We compute the leading nonanalytic contributions of the form m q log m q to matrix elements of twist-2 operators in the nucleon and pion using effective field theory. Previously omitted one-loop contributions that are related to tree-level matrix elements by chiral symmetry are included.
π SIMILAR VOLUMES
Title of program: rotation matrix elements D ## Method of solution The reduced matrix elements ~are homogeneous poly-Catalogue number: AABI nomials of degree 2j on the variables cos ~fland sin ~fi.With the phase convention of Wigner [1],namely: Program obtainable from: CPC Program Library, Queen'
## Abstract A new method has been proposed for calculating the Gaussian matrix elements of the interaction operator represented by an arbitrary degree of interelectron distance __X__. The method is based on the expansion of twoβelectron integrals as the sum of oneβelectron integrals which in turn a