A search for prompt lepton-jets in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

Bibliographic description

punktacja MEiN [2016 A]: 40

title:	A search for prompt lepton-jets in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
author:	Pałka Marek , Richter-Wąs Elżbieta
contributor:	Współautorami artykułu są członkowie ATLAS Collaboration w liczbie 2867
institution:	ATLAS Collaboration
journal title:	The Journal of High Energy Physics
volume:	2016
issue:	2
date of publication :	2016
article ID:	62
ISSN:	1126-6708
eISSN:	1029-8479
DOI:	10.1007/JHEP02(2016)062
language:	English
journal language:	English
abstract in English:	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.
keywords in English:	hadron-hadron scattering
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper