Abstract

We summarize the current status of QCD sum rule determinations of the light quark masses. We show that results obtained using the sum rule and lattice approaches are in good agreement, and that the sum rule errors have been significantly reduced in the last few years. We also comment on the status of pseudoscalar-sum-rule-based quark mass bounds which, in the past, were sometimes said to rule out the low quark mass values produced by the lattice, pointing out that bounds associated with sum rules displaying good OPE convergence are in fact all compatible with the present values obtained from lattice and explicit sum rule determinations.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.