A More Flavored Higgs boson in Supersymmetric models

A More flavored Higgs boson arises when the flavor structure encoded in SUSY extensions of the SM is transmited to the Higgs sector. The flavor-Higgs transmition mechanism can have a radiative or mixing origin, as it is illustrated with several examples, and can produce interesting Higgs signatures that can be probed at future high-energy colliders. Within the MSSM, the flavor mediation mechanism can be of radiative type, as it is realized trhough gaugino-slepton loops, which transmit the flavor structture of the soft-breaking sector to the Higgs bosons. In particular we focus on evaluating the contributions from the general trilinear terms to the lepton flavor violating Higgs (LFV) vertices. On the other hand, as an example of flavor mediation through mixing, we discuss an E_6 inspired multi-Higgs model, with an abelian flavor symmetry, where LFV as well as lepton flavor conserving Higgs effects are found to arise, though in this case at tree-level. We find that Tevatron and LHC can provide information on the flavor structure of these models through the detection of the LFV higgs mode h-> tau+mu, while NLC can perform high-precision measurements of the LFC mode h-> tau tau.Comment: 17 pages, 5 tables, 3 figures; corrected mistake in last section, results changed but conclusions remmai

Building quests for online games with virtual institutions

Abstract. This document describes how to re-purpose an existing agent technology called Virtual Institutions as a mechanism to define new "quest" elements in Massively Multiplayer Online Games based on MultiAgent Systems. Quests are a very important part of most Massive Online Games as they wield to flow and narrative of the game in a linear or nonlinear manner

Limits on excited tau leptons masses from leptonic tau decays

We study the effects induced by excited leptons on the leptonic tau decay at one loop level. Using a general effective lagrangian approach to describe the couplings of the excited leptons, we compute their contributions to the leptonic decays and use the current experimental values of the branching ratios to put limits on the mass of excited states and the substructure scale.Comment: 10 pages, 6 figures, to be published in Phys. Rev.

Dificultades en el uso del feedback en la formación del profesorado de Educación Física

En este estudio se exploran las dificultades que tienen los futuros docentes de educación física con el uso del feedback en situaciones simuladas de enseñanza-aprendizaje de expresión corporal. Durante dos años se realiza una investigación-acción desarrollada en la Universidad de Valladolid y la Universidad de Zaragoza. Los estudiantes, durante el proceso de retroalimentación integrado en un sistema de evaluación formativa, toman conciencia de su uso y progresan en la tarea de enseñar y evaluar como parte del propio proceso de aprendizaje. Se acomete una investigación-acción durante dos cursos académicos y se realiza un análisis de contenido, con un proceso de codificación de la información, para descubrir las dificultades comunicativas experimentadas. Las principales observadas se relacionan con la escasa presencia de feedback afectivo o motivador. Consideran importante la retroalimentación afectiva; sin embargo, los datos muestran que encuentran dificultades en su utilización aunque resulte fundamental para la mejora de la comunicación y el proceso docente. This study explores the difficulties that future physical education teachers have when using feedback in simulated teaching situations on body expression. For two years, action research was carried out at the University of Valladolid and the University of Zaragoza in which students, during the feedback process integrated into a formative assessment system, become aware of their use of feedback and progress in teaching and assessing tasks as a part of the learning process itself Action research is carried out during two academic years and an analysis of content with a coding information process is performed to discover communicative difficulties experienced. The main issues observed are related to the scarce presence of affective or motivating feedback. Regarding affective feedback, they consider it important, although data shows that they find it difficult to use it; being a fundamental part of the improvement of communication and the teaching process

EUSKOOS (Basque Operational Oceanography System): an integrated approach to providing coastal and oceanic information

Peer Reviewe

Exploring flavor structure of supersymmetry breaking from rare B decays and unitarity triangle

We study effects of supersymmetric particles in various rare B decay processes as well as in the unitarity triangle analysis. We consider three different supersymmetric models, the minimal supergravity, SU(5) SUSY GUT with right-handed neutrinos, and the minimal supersymmetric standard model with U(2) flavor symmetry. In the SU(5) SUSY GUT with right-handed neutrinos, we consider two cases of the mass matrix of the right-handed neutrinos. We calculate direct and mixing-induced CP asymmetries in the b to s gamma decay and CP asymmetry in B_d to phi K_S as well as the B_s--anti-B_s mixing amplitude for the unitarity triangle analysis in these models. We show that large deviations are possible for the SU(5) SUSY GUT and the U(2) model. The pattern and correlations of deviations from the standard model will be useful to discriminate the different SUSY models in future B experiments.Comment: revtex4, 36 pages, 10 figure

Single Top Production as a Window to Physics Beyond the Standard Model

Production of single top quarks at a high energy hadron collider is studied as a means to identify physics beyond the standard model related to the electroweak symmetry breaking. The sensitivity of the $s$-channel $W^*$ mode, the $t$-channel $W$-gluon fusion mode, and the \tw mode to various possible forms of new physics is assessed, and it is found that the three modes are sensitive to different forms of new physics, indicating that they provide complimentary information about the properties of the top quark. Polarization observables are also considered, and found to provide potentially useful information about the structure of the interactions of top.Comment: References added and minor discussion improvements; results unchanged; Version to be published in PR