G. Zarnauskas

activity

20052011

most citedTowards three-body unitarity in

D^{+} \to K^{-} π^{+} π^{+}

64 citations · 119 across the 6 of their papers we have counts for

collaborators

6 papers

hep-ph2011★ 64 cited

Towards three-body unitarity in $D^{+} \to K^{-} π^{+} π^{+}$

P. C. Magalhães, M. R. Robilotta, K. S. F. F. Guimarães +6

We assess the importance of final state interactions in $D^+ \rar K^- \p^+ \p^+$, stressing the consistency between two- and three-body interactions. The basic building block in th…

hep-ph2010★ 39 cited

On the pion decay constant

J. Gasser, G. R. S. Zarnauskas

The pion decay constant f_pi plays a crucial role in many areas of low energy particle physics. Its value may e.g. be deduced from experimental data on leptonic pion decays. Here,…

hep-ph2008★ 1 cited

Decay $D^{+} \to K^{-} π^{+} π^{+}$ : chiral symmetry and scalar resonances

D. R. Boito, P. C. Magalhães, M. R. Robilotta +1

The low-energy S-wave component of the decay $D^{+} \to K^{-} π^{+} π^{+}$ is studied by means of a chiral SU(3)XSU(3) effective theory. As far as the primary vertex is concerned, we allow…

hep-ph2008★ 1 cited

$D^+ \to K^- \p^+ \p^+ $: the low-energy sector

D. R. Boito, P. C. Magalhães, M. R. Robilotta +1

An effective $S U (3) \times S U (3)$ chiral lagrangian, which includes scalar resonances, is used to describe the process $D^+ \rar K^- \p^+ \p^+$ at low-energies. Our main result is a…

nucl-th2008

Scalar form factors and nuclear interactions

M. R. Robilotta, G. R. S. Zarnauskas

The scalar-isoscalar term in the two-pion exchange $N N$ potential is abnormally large and does not respect the hierarchy of effects predicted by chiral perturbation theory. We argu…

hep-ph2005★ 14 cited

Pion-delta sigma-term

I. P. Cavalcante, M. R. Robilotta, J. Sa Borges +2

We use a configuration space chiral model in order to evaluate nucleon and delta sigma-terms. Analytic expressions are consistent with chiral counting rules and give rise to expect…