60 citations · 64 across the 3 of their papers we have counts for
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Contribution from Duality Violations to the theoretical error on alpha_s
O. Cata, M. Golterman, S. Peris
Duality Violations (DVs) is a nickname for the failure of the Operator Product Expansion to describe QCD correlators on the physical axis. Using a physically motivated ansatz, a fi…
Possible duality violations in tau decay and their impact on the determination of alpha_s
Oscar Cata, Maarten Golterman, Santiago Peris
We discuss the issue of duality violations in hadronic tau decay. After introducing a physically motivated ansatz for duality violations, we estimate their possible size by fitting…
Estimate of the systematic error in tau decay due to duality violations
Oscar Cata, Maarten Golterman, Santiago Peris
With the help of a physically motivated ansatz, which is fitted to the data, we estimate the size of possible duality violations in hadronic tau decay. The result is that the uncer…
A Rational Approach to Resonance Saturation in large-Nc QCD
P. Masjuan, S. Peris
We point out that resonance saturation in QCD can be understood in the large-Nc limit from the mathematical theory of Pade Approximants to meromorphic functions. These approximants…