Rui Santos

Vacuum Stability in two-Higgs doublet models (2009)

Sa, Nuno Barros E, Barroso, Augusto, Ferreira, Pedro, Santos, Rui

In this work we review the status of tree-level vacuum stability in general two-Higgs doublet models. We also discuss the problem of Normal minima in some classes of potentials. In some of these...

Double Neutral Higgs production in the Two-Higgs doublet model at the LHC (2009)

Arhrib, Abdesslam, Benbrik, Rachid, Chen, Chuan-Hung, Guedes, Renato, Santos, Rui

In this work we study the production and decay of two CP-even Higgs bosons in the general CP-conserving two-Higgs doublet model at the LHC. We also study the limiting case of the decoupling scenario....

Neutral Higgs boson pair production in photon-photon annihilation in the Two Higgs Doublet Model (2009)

Arhrib, Abdesslam, Benbrik, Rachid, Chen, Chuan-Hung, Santos, Rui

We study double Higgs production in photon-photon collisions as a probe of the new dynamics of Higgs interactions in the framework of two Higgs Doublet Models. We analyze neutral Higgs bosons...

Distinctive Higgs Signals of a Type II 2HDM at the LHC (2009)

Kanemura, Shinya, Moretti, Stefano, Mukai, Yuki, Santos, Rui, Yagyu, Kei

We perform a numerical analysis of Higgs-to-Higgs decays within a Type II 2-Higgs Doublet Model (2HDM), highlighting several channels that cannot occur in its Supersymmetric version, thereby allowing...

The agrarian economy of the region of Évora in the first half of the 17th century (1595-1660): an exploration of main indicators (2005)

Santos, Rui

Este artículo intenta establecer la cronología y dinámica de la depresión del siglo XVII en la región de Évora, en el sur de Portugal. El examen de un conjunto de variables clave...

Economic sociology of the modern latifundium: economic institutions and social change in Southern Portugal, 17th-19th centuries (2004)

Santos, Rui

A estrutura social agrária correntemente conhecida como latifúndio, prevalecente no Alentejo até à segunda metade do século XX, foi um traço estrutural fundamental da formação da sociedade...

Experimental signature of a fermiophobic Higgs boson (2000)

Brucher, Lars, Santos, Rui

The most general Two Higgs Doublet Model potential without explicit CP violation depends on 10 real independent parameters . Excluding spontaneous CP violation results in two 7 parameter models....

Participatory methods for water resources planning

Giorgos Kallis, Nuno Videira, Paula Antunes, Ângela Guimarães Pereira, Clive L Spash, Harry Coccossis, ...

The Water Framework Directive institutionalises participatory processes in river basin planning across the European Union. This paper reports on three case studies from southern Europe where...

Participation and evaluation for sustainable river basin governance

Antunes, Paula, Kallis, Giorgos, Videira, Nuno, Santos, Rui

This paper introduces a special section devoted to participation and evaluation for sustainable river basin governance. The departing point for this research was the recognition that although there...

Scoping river basin management issues with participatory modelling: The Baixo Guadiana experience

Videira, Nuno, Antunes, Paula, Santos, Rui

This paper details the design and implementation of a participatory modelling process in the Baixo Guadiana River Basin, in Portugal. A group of stakeholders was involved in a causal mapping exercise...