Nucleon properties from unconventional interpolating fields
Abstract
Interpolating fields, used to excite hadrons from the QCD vacuum in nonperturbative field-theoretic investigations of hadron properties, are explored with an emphasis on unconventional nucleon interpolators. The QCD continuum model for excited state contributions to QCD correlation functions is a central element in extracting the physics contained in these alternate correlation functions. The analysis confirms the independence of nucleon properties obtained from different interpolating fields. However, this independence comes about in a trivial manner. These results provide a resolution to the long standing debate over the optimal nucleon interpolating field to be used in QCD sum rule analyses.
- Publication:
-
Physical Review D
- Pub Date:
- June 1995
- DOI:
- 10.1103/PhysRevD.51.6383
- arXiv:
- arXiv:nucl-th/9406001
- Bibcode:
- 1995PhRvD..51.6383L
- Keywords:
-
- 12.38.Gc;
- 11.55.Hx;
- 12.38.Lg;
- 12.40.Yx;
- Lattice QCD calculations;
- Sum rules;
- Other nonperturbative calculations;
- Hadron mass models and calculations;
- Nuclear Theory;
- High Energy Physics - Lattice;
- High Energy Physics - Phenomenology
- E-Print:
- A quantitative determination of the optimal nucleon interpolating field to be used in QCD Sum Rule analyses is now included