36 citations · 73 across the 6 of their papers we have counts for
6 papers · 1 filter
MEtop - a top FCNC event generator
Rita Coimbra, António Onofre, Rui Santos +1
We present a new Monte Carlo generator for Direct top and Single top production via flavour-changing neutral currents (FCNC). This new tool calculates the cross section and generat…
Dimension six FCNC operators and top production at the LHC
R. A. Coimbra, P. M. Ferreira, R. B. Guedes +4
In this work we calculate the effects of the electroweak flavour changing neutral currents dimension six effective operators on single top production at the LHC. These results are…
Possible psi(5S), psi(4D), psi(6S) and psi(5D) signals in Lambda(c)-antiLambda(c)
Eef van Beveren, Xiang Liu, Rita Coimbra +1
It is shown that the Lambda(c+)-Lambda(c-) signal recently reported by the Belle Collaboration (ARXIV:0807.4458) contains clear signs of the psi(5S) and the psi(4D) c-cbar vector s…
Charmonium and Bottomonium from Classical SU(3) Gauge Configurations
R. A. Coimbra, O. Oliveira
The charmonium and bottomonium spectra computed from a potential defined from a single gauge configuration, obtained from solving the classical field equations, is discussed. The t…
Charmonium from Classical Pure SU(3) Yang-Mills Configurations
O. Oliveira, R. A. Coimbra
A generalized Faddeev-Niemi ansatz for the gluon field is discussed. In its simplest parametrization, the ansatz allows a solution of the classical SU(3) Yang-Mills equations. From…
Classical Solutions of SU(2) and SU(3) Pure Yang-Mills Theories and Heavy Quark Spectrum
O. Oliveira, R. A. Coimbra
In this paper we compute classical Minkowsky spacetime solutions of pure SU(2) and SU(3) gauge theories, in Landau gauge. The solutions are regular everywhere except at the origin…