10,627 research outputs found

    Recent Top Quark Mass Measurements from CMS

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    A variety of top quark mass measurements has been made in the recent years by the CMS Collaboration. The most recent measurements performed at 8 TeV are reported here, along with a new measurement based on data collected in 2016 at 13 TeV. The current combination of these measurements has a relative uncertainty smaller than 0.3%, making the top quark the most accurately measured quark.Comment: 6 pages, 3 figures, proceedings of the 10th International Workshop on Top Quark Physics 201

    Top-quark mass at hadron colliders

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    Top quarks can be produced abundantly at hadron colliders like the Tevatron at Fermilab and the Large Hadron Collider at CERN, and a variety of measurements of top-quark properties have been gathered in the recent years from four experiments: CDF and D0 at the Tevatron and ATLAS and CMS at the Large Hadron Collider. In this review the most recent results on the measurement of the top-quark mass by the four different collaborations, with various techniques and considering different topologies, are reported.Comment: 19 pages, 16 figures. Presented at the 2013 Lepton Photon Conference, June 24-29, 2013, San Francisco, CA, USA. Representing the ATLAS, CDF, CMS and D0 Collaboration

    Chronicle of a Pandemic Foretold. CEPS Policy Insights No 2020-05 / March 2020

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    In just a few weeks, COVID-19 appeared in China and quickly spread to the rest of the world, including Europe and the United States. Many have rushed to describe the outbreak as a ‚Äėblack swan‚Äô ‚Äď an unpredictable event with extremely severe consequences. However, COVID-19 was not only predictable ex post: it was amply predicted ex ante. This allows us to draw some preliminary lessons: ‚ÄĘ First, economic policy will need to shift from its current focus on efficiency, towards a greater emphasis on resilience and sustainability. ‚ÄĘ Second, a more centralised governance to address health emergencies is needed. ‚ÄĘ Third, Europe should create a centre for the prevention of large-scale risks. ‚ÄĘ Fourth, digital technologies, if handled with care, can be an important part of both a mitigation and a response strategy. ‚ÄĘ Fifth, Europe should improve its science advice and communication functions. Finally, there are many ways to pursue enhanced resilience and responsiveness, but not all of them are compatible with sustainability and democratic values. The challenge is to find an adequate policy mix, which safeguards individual rights and liberties, protects the economy, and at the same time strengthens government preparedness for cases of epidemics and pandemics

    Gravitational waves in massive gravity theories: waveforms, fluxes and constraints from extreme-mass-ratio mergers

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    Is the graviton massless? This problem was addressed in the literature at a phenomenological level, using modified dispersion relations for gravitational waves, in linearized calculations around flat space. Here, we perform a detailed analysis of the gravitational waveform produced when a small particle plunges or inspirals into a large non-spinning black hole. Our results should presumably also describe the gravitational collapse to black holes and explosive events such as supernovae. In the context of a theory with massive gravitons and screening, merging objects up to 1‚ÄČGpc1\,{\rm Gpc} away or collapsing stars in the nearby galaxy may be used to constrain the mass of the graviton to be smaller than ‚ąľ10‚ąí23‚ÄČeV\sim 10^{-23}\,{\rm eV}, with low-frequency detectors. Our results suggest that the absence of dipolar gravitational waves from black hole binaries may be used to rule out entirely such theories.Comment: Important clarifications on screening and on our results added. Accepted for publication in Physical Review Letter

    Lo monstruoso como proyección pesadillesca de lo conocido en Gorodischer y Rey Rosa

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    Este trabajo presenta un estudio de la creaci√≥n de mundos monstruosos en dos cuentos de escritores latinoamericanos: ‚ÄúLos embriones del violeta‚ÄĚ (1973) de la argentina Ang√©lica Gorodischer y ‚ÄúC√°rcel de √°rboles‚ÄĚ (1992) del guatemalteco Rodrigo Rey Rosa. Estos mundos monstruosos pueden entenderse como proyecciones pesadillescas de las realidades socio-culturales con las cuales dialogan los textos. Asimismo, el trabajo estudia c√≥mo en los cuentos se tematiza la escritura y sus limitaciones al momento de narrar las memorias de lo monstruoso

    Educación, ciencia y blancura en 'Stella' y 'Mecha Iturbe' de César Duayen

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    Educaci√≥n, Ciencia y blancura en Stella y Mecha Iturbe de C√©sar Duayen El presente trabajo estudia el lugar que ocupan la educaci√≥n y la ciencia en el proceso de imaginar la naci√≥n deseada en las dos primeras novelas de C√©sar Duayen, a saber Stella (1905) y Mecha Iturbe (1906). A estos fines se analizan las relaciones que se establecen en las novelas entre Educaci√≥n, Ciencia y Naci√≥n as√≠ como los modos en los que las ficciones se auto-atribuyen agencia para imaginar y concretizar lo imaginado en el mundo dieg√©tico. Dentro de este entramado, la tensi√≥n entre lo local y lo global ‚Äďo lo nacional y lo cosmopolita‚Äď jugar√° un papel clave, papel que tambi√©n se discute a lo largo del trabajo. Asimismo, se argumenta que el color blanco y los cuerpos blancos ser√°n elementos centrales en la representaci√≥n de los conflictos con los que se enfrenta la naci√≥n deseada y de los ideales que la gu√≠an. Palabras clave: literatura hispanoamericana, literatura argentina, cosmopolitismo, naci√≥n, ciencia, blancura ¬† Education, Science and Whiteness in Stella and Mecha Iturbe by C√©sar Duayen The present article studies the role of education and science in the process of imagining the desired nation in the first two novels by C√©sar Duayen, namely, Stella (1905) and Mecha Iturbe (1906). To this end, the analysis focuses on the relations established between Education, Science and Nation as well as on the ways through which the narratives attribute themselves the authority to imagine the nation and realize this imagination in the diegetic world. Within this framework, the tension between the local and the global ‚Äď or the national and the cosmopolitan ‚Äď will play a central role, which is also discussed along the essay. Furthermore, it is argued that white as a colour as well as white bodies will be central elements for the conveyance of both the conflicts that the desired nation faces and the ideals that guide it. Key words: Latin-American literature, Argentinean literature, cosmopolitism, nation, science, whiteness ¬†

    Organizational-communicative impact of collective action "Las Periodistas Paramos" 2018 in Spain

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    Esta investigaci√≥n analiza los resultados inmediatos y consecutivos de la acci√≥n colectiva ‚ÄúLas Periodistas Paramos‚ÄĚ que tuvo lugar en Espa√Īa en 2018, a prop√≥sito de la huelga feminista del 8M. Se utilizan la revisi√≥n bibliogr√°fica y la entrevista en profundidad para conocer las formas de organizaci√≥n establecidas como consecuencia de LPP, y su aporte al capital social del movimiento feminista. Entre los resultados se obtiene la creaci√≥n de redes territoriales de mujeres, un cambio de perspectiva en torno a la igualdad de g√©nero en los medios de comunicaci√≥n, as√≠ como una contribuci√≥n efectiva de capital social a la cuarta ola del movimiento feminista.Universidad de M√°laga. Campus de Excelencia Internacional Andaluc√≠a Tech

    POETRY, DOCTRINE AND SUBJECTIVITY IN THE LATE NINETEENTH-CENTURY CATHOLIC PRESS

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    Este ensayo focaliza en el papel que jug√≥ la poes√≠a en el contexto doctrinal y conservador que ofrec√≠a la revista semanal El Cat√≥lico Argentino (1874-1876), precursora en la consolidaci√≥n de la prensa cat√≥lica en Argentina. A trav√©s del estudio de la relaci√≥n entre el repertorio est√©tico de los poemas y la fuerte cr√≠tica al liberalismo y a la modernidad en los art√≠culos doctrinarios de la revista, este ensayo argumenta que la poes√≠a buscaba la creaci√≥n de una subjetividad lectora de car√°ctercomunitario. Esta se presentar√° como alternativa a la subjetividad liberal a la que apelaba la prensa liberal del momento, promoviendo la novedad y la moda. ABSTRACT This essay focuses on the role played by poetry in the doctrinal and conservative context of the weekly newspaper El Cat√≥lico Argentino (1874-1876), a forerunner in the consolidation of the Catholic press in Argentina. By studying how the aesthetic repertoire of the poetic pieces relates to the strong criticism of dominant liberalism and modernity in the newspaper‚Äôs doctrinal pieces, the essay argues that poetry, via different strategies, appeals to the creation of a sharedor communal reader subjectivity. This will stand as in contrast to the liberal subjectivity appealed to by the contemporary press of the time, which highlighted novelty and fashion
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