173 citations · 1.3k across the 23 of their papers we have counts for
23 papers
NNLO low-energy constants from flavor-breaking chiral sum rules based on hadronic tau-decay data
M. Golterman, K. Maltman, S. Peris
Using spectral data from non-strange and strange hadronic tau decays, flavor-breaking chiral sum rules involving the flavor ud and us current-current two-point functions are constr…
Resummation of Threshold, Low- and High-Energy Expansions for Heavy-Quark Correlators
D. Greynat, S. Peris
With the help of the Mellin-Barnes transform, we show how to simultaneously resum the expansion of a heavy-quark correlator around q^2=0 (low-energy), q^2= 4 m^2 (threshold, where…
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…
Pade Theory applied to the vacuum polarization of a heavy quark
P. Masjuan, S. Peris
The vacuum polarization of a quark, when considered in terms of the external momentum q^2, is a function of the Stieltjes type. Consequently, the mathematical theory of Pade Approx…
Duality violations and spectral sum rules
O. Cata, M. Golterman, S. Peris
We study the issue of duality violations in the VV-AA vacuum polarization function in the chiral limit. This is done with the help of a model with an expansion in inverse powers of…
Kaon weak interactions in powers of 1/Nc
S. Peris
I review a recent analytic method for computing matrix elements of electroweak operators based on the large-Nc expansion. In particular, I give a rather detailed description of the…