Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at root s=8 TeV
Number of Authors: 2882
2014 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, Vol. 8, 103- p.Article in journal (Refereed) Published
A search for an excess of events with multiple high transverse momentum objects including charged leptons and jets is presented, using 20.3 fb(-1) of proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider in 2012 at a centre-of-mass energy of root s = 8 TeV. No excess of events beyond Standard Model expectations is observed. Using extra-dimensional models for black hole and string ball production and decay, exclusion contours are determined as a function of the mass threshold for production and the fundamental gravity scale for two, four and six extra dimensions. For six extra dimensions, mass thresholds of 4.8-6.2 TeV are excluded at 95 % confidence level, depending on the fundamental gravity scale and model assumptions. Upper limits on the fiducial cross-sections for non-Standard Model production of these final states are set.
Place, publisher, year, edition, pages
2014. Vol. 8, 103- p.
IdentifiersURN: urn:nbn:se:uu:diva-233695DOI: 10.1007/JHEP08(2014)103ISI: 000341104200001OAI: oai:DiVA.org:uu-233695DiVA: diva2:753647
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1007/JHEP08(2014)1032014-10-082014-10-082014-11-07Bibliographically approved