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A search for prompt lepton-jets in pp collisions at √s = 8 TeV with the ATLAS detector G. Aad, B. Abbott, J. Abdallah [et.al.]

Contributor(s): Aad, G | Abdallah, J | Chelkov, G. A | Abbott, BMaterial type: ArticleArticleSubject(s): ATLAS, детектор | Большой адронный коллайдер | бозоны | столкновение частиц | лептоныGenre/Form: статьи в журналах Online resources: Click here to access online In: Journal of high energy physics № 2. P. 062 (1-50)Abstract: A search is presented for a new, light boson with a mass of about 1 GeV and decaying promptly to jets of collimated electrons and/or muons (lepton-jets). The analysis is performed with 20.3 fb−1 of data collected by the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a centre-of-mass energy of 8 TeV. Events are required to contain at least two lepton-jets. This study finds no statistically significant deviation from predictions of the Standard Model and places 95% confidence-level upper limits on the contribution of new phenomena beyond the SM, incuding SUSY-portal and Higgs-portal models, on the number of events with lepton-jets.
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A search is presented for a new, light boson with a mass of about 1 GeV and decaying promptly to jets of collimated electrons and/or muons (lepton-jets). The analysis is performed with 20.3 fb−1 of data collected by the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a centre-of-mass energy of 8 TeV. Events are required to contain at least two lepton-jets. This study finds no statistically significant deviation from predictions of the Standard Model and places 95% confidence-level upper limits on the contribution of new phenomena beyond the SM, incuding SUSY-portal and Higgs-portal models, on the number of events with lepton-jets.

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