34 research outputs found

    Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

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    A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

    Measurement of jet fragmentation in Pb+Pb and pppp collisions at sNN=2.76\sqrt{{s_\mathrm{NN}}} = 2.76 TeV with the ATLAS detector at the LHC

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    Julie Delporte : un portrait

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    Julie Delport

    Une femme qui regarde les hommes regarder les femmes

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    Journal de Julie Delporte : illustrations

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    Journal de Julie Delporte : illustrations. Avec l'autorisation de Koyama P

    Souvenirs du CinĂ©ma l’amitiĂ©

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    La bédé-réalité : La bande dessinée autobiographique à l'heure des technologies numériques

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    À l’image des thĂ©ories de la bande dessinĂ©e imprimĂ©e, la BD numĂ©rique est elle aussi accaparĂ©e par les analyses formalistes, dont la plus connue, celle de Scott McCloud, est critiquable, car elle rĂ©duit le mĂ©dia Ă  un langage. Or, les mutations provoquĂ©es par la remĂ©diation numĂ©rique ne sont pas uniquement formelles : l’expĂ©rience du lecteur, de l’auteur, et le rapport qu’ils entretiennent ensemble sont modifiĂ©s. Ce nouveau rapport influence le contenu des Ɠuvres : on ne raconte pas la mĂȘme chose dans le livre que sur Internet. L’autobiographie en BD, courant qui a explosĂ© dans l’édition indĂ©pendante des annĂ©es 1990, puis a Ă©tĂ© largement repris par les blogueurs, permet d’observer les diffĂ©rences de contenus et d’approches vĂ©hiculĂ©es par le livre et le numĂ©rique. Le dispositif du blogue propose un outil de libertĂ© d’expression et de rĂ©flexion, mais les paramĂštres de son exĂ©cution (immĂ©diatetĂ©, interactivitĂ©, dĂ©sir de popularitĂ©, etc.) peuvent dĂ©tourner cet objectif. Ainsi, beaucoup d’auteurs de blogues n’ont pas produit une autobiographie singuliĂšre, mais ont reproduit un courant de pensĂ©e existant (en exposant une libido fortement orientĂ©e vers la consommation) ainsi qu’un genre codifiĂ©, au sein duquel les autobiographies deviennent uniformes. Pour qualifier leurs blogues, on ne peut pas vraiment parler d’autobiographies, car ils ne mettent pas en scĂšne un passĂ© rĂ©trospectif. Il s’agirait davantage de journaux intimes dont l’intimitĂ© est communiquĂ©e (ou publicisĂ©e) plutĂŽt qu’expĂ©rimentĂ©e. Ce Ă  quoi ces blogues ressemblent finalement le plus, c’est Ă  une sorte de tĂ©lĂ©-rĂ©alitĂ©, une « bĂ©dĂ©-rĂ©alitĂ© ».Digital comics, like their printed counterparts, are heavily analyzed in a formalist approach: the most famous analysis, Scott McCloud's, could be criticized for it reduction of the media form to a language. But the changes that stem from the digital remediation aren't solely formal: the reader's experience, the author's, and the relation they share are all modified. This new relation changes the work's content: one doesn't tell the same thing in print and online. Autobiography in comics (a trend that exploded in the independent wave of the 90s and was later re-appropriated by bloggers) allows us to compare differences in approach between books and digital formats. The blog offers a tool for free speech and reflection, but at the same time diverts from such goals by the parameters of its execution (immediacy, interactivity, social networking, etc.). Indeed, many blog authors don't produce a singular autobiography as much as reproduce an existing trend (with a consumption-oriented libido) and a now-codified genre, in which autobiographies become uniform. Those blogs can't be completely considered as autobiographical anymore, as they don't tell of a retrospective past; they are more akin to personal diaries whose intimacy would be communicated (or publicized) instead of experienced. In that way, such blogs are closer to reality shows and could therefore be considered as a form of "reality comic"

    Initiation Ă  la sorcellerie politique

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    Lettre à Pattie O’Green

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