The decays h+- -> W-+ h0(a0) within an extension of the MSSM with one complex Higgs triplet

The vertex H+-W-+h0, involving the gauge bosons W-+, the charged (H+-) and the lightest neutral (h0) Higgs bosons, arises within the context of many extensions of the SM, and it can be used to probe the Higgs sector of such extensions via the decay H+- -> W+- h0. We discuss the strength of this vertex for an extension of the MSSM with an additional complex Higgs triplet. By using this model, we find regions of the parameter space where the decay H+- -> W+- h0 is not only kinematically allowed, but it also becomes an important decay mode and in some cases the dominant one.Comment: 10 figure

Charged Lepton Masses as a Possible CPV Source

We realize a model-independent study of the so-called Tri-Bi-Maximal pattern of leptonic flavor mixing. Different charged lepton mass matrix textures are studied. In particular, we are interested in those textures with a minimum number of parameters and that are able to reproduce the current experimental data on neutrino oscillation. The textures studied here form an equivalent class with two texture zeros. We obtain a Tri-Bi-Maximal pattern deviation in terms of the charged leptons masses, leading to a reactor angle and three CP violation phases non-zero. These lastest are one CP violation phase Dirac-like and two phases Majorana-like. Also, we can test the phenomenological implications of the numerical values obtained for the mixing angles and CP violation phases, on the neutrinoless double beta decay, and in the present and upcoming experiments on long-base neutrino oscillation, such as T2K, NOvA, and DUNE

Collaborative learning in the office management studies field: a COIL experience between Portugal and Cabo Verde

The internationalisation of Higher Education Institutions (HEI) can occur across borders and at home. In recent years, the option for virtual mobility or collaborative online international learning (COIL) has been gaining special relevance. COIL "encompasses projects based on the involvement of teachers and students with different geographical, language and cultural backgrounds, for the development of collaborative teaching and learning processes using online communication tools" [1], thus facilitating not only the consolidation of technical skills, but also of transversal skills. This article describes a COIL project that took place between March and June 2021, involving 26 students from the degree in Office Management and Business Communication (OMBC) of the University of Aveiro (Portugal) and the degree in Public Relations and Executive Secretariat (PRES) of the Public University of Cape Verde. The project, entitled "Communication tools in the context of job search in Portuguese-speaking markets: Portugal and Cape Verde", was streamlined in a context of competences aggregation between disciplines in the area of Portuguese and Computer Science, with the participation of 5 teachers. Each student selected a job offer in the partner country and produced a multiformat CV (digital support and video CV), adapting it to a situation of applying for real job opportunities. The project included familiarisation sessions, open classes regarding the labour market in both countries, extra class meetings between students and moments (in class and extra-class) to follow up the work in progress. After the end of the project, a questionnaire was applied to the students involved, and 24 answers were obtained: 13 from Portugal (all participants) and 11 from Cape Verde (out of 13 possible). The respondents indicated curiosity, the possibility of meeting new cultures/people and acquiring new knowledge as factors that motivated them to participate in this COIL project. Overall, participants were very satisfied with the development of this project. The answers obtained also made it possible to identify the most and least positive aspects in the implementation of the project, to find out the technical and transversal skills developed from this experience, and to list the communication tools/digital tools that the students used the most.publishe

Higgs Sector with Spontaneous CP Violation in S(3) Standard Model

Conditions for spontaneous Charge-Parity (CP) violation in the scalar potential sector of general S(3) Higgs-doublet model (3HDM) are analyzed. An analysis of the Higgs sector of the minimal S(3)-invariant extension of the Standard Model including CP violation arising from the spontaneous breaking of the electroweak symmetry is presented. This extended Higgs sector with three SU(2) doublets Higgs fields with complex vev’s provides an interesting scenario to analyze the Higgs masses spectrum, trilinear self-couplings and CP violation. We present how the spontaneous electroweak symmetry breaking, coming from three S(3) Higgs fields, gives an interesting scenario with nine physical Higgs and three Goldstone bosons, when spontaneous CP violation arises from the Higgs field S(3) singlet Hs