activity
20012013
most citedAn example of resonance saturation at one loop

34 citations · 69 across the 6 of their papers we have counts for

collaborators

6 papers

hep-ph2013

Searches for strong dynamics signals in gauge boson pair production

Oscar Cata

I briefly review the construction of the effective field theory of a nonlinearly realized electroweak symmetry breaking and apply it to the study of gauge boson pair production. I…

hep-ph2011★ 22 cited

K^+ -> pi^+pi^0e^+e^-: a novel short-distance probe

Luigi Cappiello, Oscar Cata, Giancarlo D'Ambrosio +1

We study the decay K^+ -> pi^+ pi^0 e^+ e^-, currently under analysis by the NA62 Collaboration at CERN. In particular, we provide a detailed analysis of the Dalitz plot for the lo…

hep-ph2011

Issues in determining alpha_s from hadronic tau decay and electroproduction data

D. Boito, O. Cata, M. Golterman +4

We discuss some key issues associated with duality-violating and non-perturbative OPE contributions to the theoretical representations of light quark current-current two-point func…

hep-ph2011

Duality Violation and the K --> pi pi Electroweak Penguin Operator Matrix Elements from Hadronic Tau Decays

D. Boito, O. Cata, M. Golterman +4

We discuss a preliminary study of the impact of duality violations on extractions from tau decay data of the D=6 VEVs which determine chiral limit Standard Model K-->pi pi matrix e…

hep-ph2009★ 13 cited

Relations between vacuum condensates and low energy parameters from a rational approach

O. Cata

Conventional methods to determine non-perturbative parameters in QCD, such as the different variants of QCD sum rules or the minimal hadronic approximation, combine a certain degre…

hep-ph2001★ 34 cited

An example of resonance saturation at one loop

O. Cata, S. Peris

We argue that the large-Nc expansion of QCD can be used to treat a Lagrangian of resonances in a perturbative way. As an illustration of this we compute the L_10 coupling of the Ch…