939 resultados para Alfonso X, Rey de Castilla


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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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A measurement of differential cross sections for the production of a pair of isolated photons in proton-proton collisions at root s = 7 TeV is presented. The data sample corresponds to an integrated luminosity of 5.0 fb(-1) collected with the CMS detector. A data-driven isolation template method is used to extract the prompt diphoton yield. The measured cross section for two isolated photons, with transverse energy above 40 and 25 GeV respectively, in the pseudorapidity range vertical bar eta vertical bar < 2.5, vertical bar eta vertical bar (sic) [1.44, 1.57] and with an angular separation Delta R > 0.45, is 17.2 +/-0.2 (stat) +/-1.9 (syst) +/- 0.4 (lumi) pb. Differential cross sections are measured as a function of the diphoton invariant mass, the diphoton transverse momentum, the azimuthal angle difference between the two photons, and the cosine of the polar angle in the Collins-Soper reference frame of the diphoton system. The results are compared to theoretical predictions at leading, next-to-leading, and next-to-next-to-leading order in quantum chromodynamics.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Searches are presented for heavy scalar (H) and pseudoscalar (A) Higgs bosons posited in the two doublet model (2HDM) extensions of the standard model (SM). These searches are based on a data sample of pp collisions collected with the CMS experiment at the LHC at a center-of-mass energy of root s = 8 TeV and corresponding to an integrated luminosity of 19.5 fb(-1). The decays H -> hh and A -> Zh, where h denotes an SM-like Higgs boson, lead to events with three or more isolated charged leptons or with a photon pair accompanied by one or more isolated leptons. The search results are presented in terms of the H and A production cross sections times branching fractions and are further interpreted in terms of 2HDM parameters. We place 95% C.L. cross section upper limits of approximately 7 pb on sigma B for H -> hh and 2 pb for A -> Zh. Also presented are the results of a search for the rare decay of the top quark that results in a charm quark and an SM Higgs boson, t -> ch, the existence of which would indicate a nonzero flavor-changing Yukawa coupling of the top quark to the Higgs boson. We place a 95% C.L. upper limit of 0.56% on B(t -> ch).

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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A detailed characterization of a X-ray Si(Li) detector was performed to obtain the energy dependence of efficiency in the photon energy range of 6.4 - 59.5 keV. which was measured and reproduced by Monte Carlo (MC) simulations. Significant discrepancies between MC and experimental values were found when lhe manufacturer parameters of lhe detector were used in lhe simulation. A complete Computerized Tomagraphy (CT) detector scan allowed to find the correct crystal dimensions and position inside the capsule. The computed efficiencies with the resulting detector model differed with the measured values no more than 10% in most of the energy range.

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Conferencias del X Congreso Nacional de Estudiantes de Derecho, celebrado los días 10 al 12 de abril de 2016 en el Salón de Grados de la Facultad de Ciencias Jurídicas de la ULPGC, organizado por la Delegación de Alumnos de la Facultad de Ciencias Jurídicas de la ULPGC y por el Comité Nacional de Estudiantes de Derecho (CONEDE). ACTO INAUGURAL del X CONGRESO, a cargo de Carolina Darias San Sebastián, Presidenta del Parlamento de Canrais; José Regidor García, Rector Magnífico de la de la ULPGC; Ángel Tristán Pimienta, Presidente del Consejo Social de la ULPGC ; Pablo Saavedra Gallo, Decano de la Facultad de Ciencias Jurídicas de la ULPGC; Alejandro Soto, Presidente del CONEDE ; Eliezer Santa Sánchez, Presidente del Comité Organizador del Congreso y Martín J. Marrero Pérez, Director de Comunicación del Grupo Ralons MESA REDONDA. SISTEMA ELECTORAL CANARIO, con la intervención de Cristina Tavío Ascanio, Vicepresidenta Segunda del Parlamento de Canarias; Miguel Montero Naranjo, Consejero de Área de Educación y Juventud del Cabildo de Gran Canaria; Gerardo Pérez Sánchez, Profesor Asociado de Derecho Constitucional de la Universidad de La Laguna (ULL) y Carlos Carrión Marrero, miembro de la Delegación de Estudiantes de la Facultad de Ciencias Jurídicas de la ULPGC (moderador) LECCIÓN MAGISTRAL. LA RESPONSABILIDAD PENAL DE LAS PERSONAS JURÍDICAS. ASPECTOS MATERIALES Y PROCESALES, a cargo de José Ramón Navarro Miranda, Presidente de la Audiencia Nacional. MESA REDONDA. LA LEY DE ENJUICIAMIENTO CRIMINAL,con la intervención de Guillermo García-Panasco Morales, Fiscal Jefe Provincial de Las Palmas; Rosa Rodríguez Bahamonde, Profesora Titular de Derecho Procesal de la ULPGC; Manuel Jaén Vallejo, Asesor del Ministerio de Justicia y Ana Hidalgo Jodar, alumna de la Facultad de Ciencias Jurídicas de la ULPGC. (moderadora) MESA REDONDA. DERECHO EUROPEO,con la intervención de Juan Fernando López Aguilar, Catedrático de Derecho Constitucional de la ULPGC y eurodiputado; Rogelio Pérez Bustamante, Catedrático de Historia del Derecho y Catedrático Jean Monnet de la Universidad Rey Juan Carlos ; Nicolás Navarro Batista, Profesor Titular de Derecho Internacional Público y Relaciones Internacionales de la ULPGC y Raúl Cabrera Santana, alumno de la Facultad de Ciencias Jurídicas de la ULPGC (moderador)