Use of the operator product expansion to constrain the hadron spectrum

Maarten Golterman; Santiago Peris

doi:https://doi.org/10.1103/PhysRevD.67.096001

Use of the operator product expansion to constrain the hadron spectrum

Maarten Golterman, Santiago Peris

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

44 Citations (Scopus)

Abstract

We call into question a recently proposed idea on how the short-distance behavior of QCD correlation functions constrains hadronic states to become degenerate parity eigenstates as one goes up in the spectrum. In particular, we point out that the sum rules which have been proposed in this context are in general regulator dependent and thus ill defined. © 2003 The American Physical Society.

Original language	English
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	67
DOIs	https://doi.org/10.1103/PhysRevD.67.096001
Publication status	Published - 1 Jan 2003

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