336 citations
- Universidade Cidade de São PauloBR67 papers
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9 papers · 1 filter
The photon-pion transition form factor: incompatible data or incompatible models?
J. P. B. C. de Melo, B. El-Bennich, T. Frederico
The elastic and transition form factors of the pion along with its usual static observables are calculated within a light-front field approach to the constituent quark mod…
Towards flavored bound states beyond rainbows and ladders
B. El-Bennich, E. Rojas, M. A. Paracha +1
We give a snapshot of recent progress in solving the Dyson-Schwinger equation with a beyond rainbow-ladder ansatz for the dressed quark-gluon vertex which includes ghost contributi…
Spectral Synthesis of Star-forming Galaxies in the Near-Infrared
Lucimara Martins, Alberto Rodríguez-Ardila, Suzi Diniz +2
The near-infrared spectral region is becoming a very useful wavelength range to detect and quantify the stellar population of galaxies. Models are developing to predict the contrib…
Impact of and UED parameters on different asymmetries in decays
Ishtiaq Ahmed, M. Jamil Aslam, M. Ali Paracha
A comprehensive study of the impact of new-physics on different observables for has been done. We examine the new physics models such as a…
High Precision Differential Abundance Measurements in Globular Clusters: Chemical Inhomogeneities in NGC 6752
David Yong, Jorge Melendez, Frank Grundahl +9
We report on a strictly differential line-by-line analysis of high quality UVES spectra of bright giants in the metal-poor globular cluster NGC 6752. We achieved high precision dif…
Binary black holes in nuclei of extragalactic radio sources
J. Roland, S. Britzen, A. Caproni +3
If we assume that nuclei of extragalactic radio sources contain binary black hole systems, the two black holes can eject VLBI components in which case two families of different VLB…