Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at s√ = 8 TeV

Allison, Lee and Barton, Adam and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Dearnaley, William and Fox, Harald and Grimm, Kathryn and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Maddocks, Harvey and Smizanska, Maria and Walder, James (2014) Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at s√ = 8 TeV. Journal of High Energy Physics, 2014. ISSN 1029-8479

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Abstract

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 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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of High Energy Physics
Additional Information:
The original publication is available at www.link.springer.com JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
71009
Deposited By:
Deposited On:
29 Sep 2014 10:53
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Jul 2020 04:58