Universidad Iberoamericana Ciudad de México

About: Universidad Iberoamericana Ciudad de México is a education organization based out in Mexico City, Mexico. It is known for research contribution in the topics: Large Hadron Collider & Standard Model. The organization has 2259 authors who have published 3981 publications receiving 109298 citations.

La industria automotriz en México. Antecedentes, situación actual y perspectivas

Abstract: EN MEXICO Y OTRAS NACIONES MANUFACTURERAS, LA INDUSTRIA AUTOMOTRIZ ES CONSIDERADA UN PILAR ESTRATEGICO ECONOMICO EN VIRTUD DE LOS DIFERENTES BENEFICIOS QUE TRAE CONSIGO LA GENERACION DE EMPLEOS A GRAN ESCALA, LAS RECAUDACIONES FISCALES DERIVADAS DE LAS OPERACIONES COMERCIALES DE LA INDUSTRIA, LA CAPACITACION DEL PERSONAL, EL DESARROLLO DE PROVEEDORES LOCALES Y LA MODERNIZACION TECNOLOGICA RELACIONADA. AUNQUE MEXICO, TRADICIONALMENTE SE HA MANTENIDO DENTRO DEL GRUPO DE LOS PAISES LIDERES EN LA PRODUCCION MUNDIAL DE VEHICULOS, HA SIDO DESPLAZADO PAULATINAMENTE POR LA INCURSION DE NACIONES EMERGENTES HASTA OCUPAR LA POSICION NUMERO ONCE DESDE EL ANO 2004; AUNADO A QUE EL MERCADO LOCAL DE LA COMERCIALIZACION DE VEHICULOS NO LOGRA REPUNTAR COMO SE ESPERABA QUE LO HICIERA CON LA ENTRADA DEL NUEVO SIGLO. EL TEMA SE ABORDA EN ESTE TRABAJO PARTIENDO DE UNA REVISION HISTORICA DE COMO SE FUE DANDO LA CONFORMACION DE ESTA INDUSTRIA HASTA LLEGAR A UNA DEFINICION DE LA SITUACION ACTUAL, EN LA QUE SE PERSIGUE OFRECER UN PERFIL ESTRATEGICO DEL RUMBO POR SEGUIR PARA ASEGURAR LA COMPETITIVIDAD EN EL MERCADO INTERNACIONAL.

Structure of Dark Triad Dirty Dozen Across Eight World Regions

Abstract: The Dark Triad (i.e., narcissism, psychopathy, Machiavellianism) has garnered intense attention over the past 15 years. We examined the structure of these traits' measure-the Dark Triad Dirty Dozen (DTDD)-in a sample of 11,488 participants from three W.E.I.R.D. (i.e., North America, Oceania, Western Europe) and five non-W.E.I.R.D. (i.e., Asia, Middle East, non-Western Europe, South America, sub-Saharan Africa) world regions. The results confirmed the measurement invariance of the DTDD across participants' sex in all world regions, with men scoring higher than women on all traits (except for psychopathy in Asia, where the difference was not significant). We found evidence for metric (and partial scalar) measurement invariance within and between W.E.I.R.D. and non-W.E.I.R.D. world regions. The results generally support the structure of the DTDD.

Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV

Abstract: A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125 GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at $$ \sqrt{s} $$ = 13 TeV is used, corresponding to an integrated luminosity of 35.9 fb−1. No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh → llττ. The observed upper limit at 95% confidence level ranges from 27 to 5 fb for A boson masses from 220 to 400 GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.

Search for massive WH resonances decaying into the ℓνbb¯ final state at √s = 8 TeV

Abstract: A search for a massive resonance W′decaying into a W and a Higgs boson in the lνbb (l=e, μ) final state is presented. Results are based on data corresponding to an integrated luminosity of 19.7fb^(−1) of proton–proton collisions at √s = 8 TeV, collected using the CMS detector at the LHC. For a high-mass (≳1 TeV) resonance, the two bottom quarks coming from the Higgs boson decay are reconstructed as a single jet, which can be tagged by placing requirements on its substructure and flavour. Exclusion limits at 95 % confidence level are set on the production cross section of a narrow resonance decaying into WH, as a function of its mass. In the context of a little Higgs model, a lower limit on the W′ mass of 1.4 TeV is set. In a heavy vector triplet model that mimics the properties of composite Higgs models, a lower limit on the W′ mass of 1.5 TeV is set. In the context of this model, the results are combined with related searches to obtain a lower limit on the W′ mass of 1.8 TeV, the most restrictive to date for decays to a pair of standard model bosons.

Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV

Abstract: A search for dark matter produced in association with top quarks in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb−1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral scalar or pseudoscalar mediators considered dark matter production in association with a top quark pair only, this analysis also includes production modes with a single top quark. The results are derived from the combination of multiple selection categories that are defined to target either the single top quark or the top quark pair signature. No significant deviations with respect to the standard model predictions are observed. The results are interpreted in the context of a simplified model in which a scalar or pseudoscalar mediator particle couples to a top quark and subsequently decays into dark matter particles. Scalar and pseudoscalar mediator particles with masses below 290 and 300 GeV, respectively, are excluded at 95% confidence level, assuming a dark matter particle mass of 1 GeV and mediator couplings to fermions and dark matter particles equal to unity.