Bounds for Lepton Flavor Violation and the Pseudoscalar Higgs in the General Two Higgs Doublet Model using g−2g-2 muon factor

Current experimental data from the $g-2$ muon factor, seems to show the necessity of physics beyond the Standard Model (SM), since the difference between SM and experimental predictions is 2.6$\sigma$. In the framework of the General Two Higgs Doublet Model (2HDM), we calculate the muon anomalous magnetic moment to get lower and upper bounds for the Flavour Changing (FC) Yukawa couplings in the leptonic sector. We also obtain lower bounds for the mass of the pseudoscalar Higgs ($m_{A^0}$) as a function of the parameters of the model.Comment: 12 pages, RevTex4, 5 figures. Improved presentation, updated experimental data, amplified analysis, new figures added. Subbmited to Phys. Rev.

Lepton Flavor Violation in the Two Higgs Doublet Model type III

We consider the Two Higgs Doublet Model (2HDM) of type III which leads to Flavour Changing Neutral Currents (FCNC) at tree level in the leptonic sector. In the framework of this model we can have, in principle, two situations: the case (a) when both doublets acquire a vacuum expectation value different from zero and the case (b) when only one of them is not zero. In addition, we show that we can make two types of rotations for the flavor mixing matrices which generates four types of lagrangians, with the rotation of type I we recover the case (b) from the case (a) in the limit $\tan \beta \to \infty$, and with the rotation of type II we obtain the case (b) from (a) in the limit $\tan \beta \to 0.$Moreover, two of the four possible lagrangians correspond to the models of types I and II plus Flavor Changing (FC) interactions. The analitical expressions of the partial lepton number violating widths $\Gamma (\mu \to eee)$ and $\Gamma (\mu \to e\gamma)$are derived for the cases (a) and (b) and both types of rotations.$$In all cases these widths go asymptotically to zero in the decoupling limit for all Higgses. We present from our analysis upper bounds for the flavour changing transition $\mu \to e,$ and we show that such bounds are sensitive to the VEV structure and the type of rotation utilized.Comment: 7 pages RevTeX4, 4 figures postscript, new section added and some new reference

Póster: Situación habitacional actual en el mercado inmobiliario rosarino

A partir del 2003, a pesar de la mejora en los indicadores económicos y sociales, el incremento de la construcción y la expansión de la oferta residencial, las condiciones para acceder a una vivienda formal fueron cada vez más restrictivas. Especialmente para la clase media que a diferencia de la clase alta tiene el problema de la vivienda resuelto y de la clase baja donde el Estado contiene parcialmente en planes sociales. Recién en el año 2012, el Estado lanza dos programas para la vivienda propia: A nivel nacional “Pro.Cre.Ar” con requisitos y tasas de interés viables a través de seis líneas de crédito. A nivel provincial “Mi Tierra, Mi Casa” consistió en loteos sobre tierras oficiales, a precios inferiores a los de mercado. En este contexto, el objetivo principal de la investigación radica en analizar los nuevos programas de financiamiento público para obtener una vivienda propia en la ciudad de Rosario.Fil: Secretaria de Ciencia y Tecnología - Universidad Nacional de Rosario. Facultad de Arquitectura, Planeamiento y Diseño; Argentina

Preferences for Redistribution

This paper discusses what determines the preferences of individuals for redistribution. We review the theoretical literature and provide a framework to incorporate various effects previously studied separately in the literature. We then examine empirical evidence for the US, using the General Social Survey, and for a large set of countries, using the World Values Survey. The paper reviews previously found results and provides several new ones. We emphasize, in particular, the role of historical experiences, cultural factors and personal history as determinants of preferences for equality or tolerance for inequality.