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Search for microscopic black holes in pp collisions at sqrt(s) = 8 TeV

Abstract : A search for microscopic black holes and string balls is presented, based on a data sample of pp collisions at sqrt(s) = 8 TeV recorded by the CMS experiment at the Large Hadron Collider and corresponding to an integrated luminosity of 12 inverse femtobarns. No excess of events with energetic multiparticle final states, typical of black hole production or of similar new physics processes, is observed. Given the agreement of the observations with the expected standard model background, which is dominated by QCD multijet production, 95% confidence limits are set on the production of semiclassical or quantum black holes, or of string balls, corresponding to the exclusions of masses below 4.3 to 6.2 TeV, depending on model assumptions. In addition, model-independent limits are set on new physics processes resulting in energetic multiparticle final states.
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http://hal.in2p3.fr/in2p3-00803431
Contributor : Sylvie Flores <>
Submitted on : Friday, March 22, 2013 - 6:58:46 AM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM

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S. Chatrchyan, M. Besançon, S. Choudhury, F. Couderc, M. Dejardin, et al.. Search for microscopic black holes in pp collisions at sqrt(s) = 8 TeV. Journal of High Energy Physics, Springer, 2013, 07(2013), pp.178. ⟨10.1007/JHEP07(2013)178⟩. ⟨in2p3-00803431⟩

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