Search for microscopic black holes in pp collisions at √ s = 7 TeV
Author
The CMS collaborationEntity
UAM. Departamento de Física TeóricaPublisher
Springer Verlag; SISSA 2012Date
2012-04-12Citation
10.1007/JHEP04(2012)061
Journal of High Energy Physics 2012.4 (2012): 061
ISSN
1126-6708 (print); 1029-8479 (online)DOI
10.1007/JHEP04(2012)061Editor's Version
http://dx.doi.org/10.1007/JHEP04(2012)061Subjects
Hadron-hadron scattering; FísicaNote
Journal of High Energy Physics 2012.4 (2012): 061 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
Rights
© SISSA 2012Abstract
A search for microscopic black holes in pp collisions at a center-of-mass energy of 7TeV is presented. The data sample corresponds to an integrated luminosity of 4.7 fb1 recorded by the CMS experiment at the LHC in 2011. Events with large total transverse energy have been analyzed for the presence of multiple energetic jets, leptons, and photons, which are typical signals of evaporating semiclassical and quantum black holes, and string balls. Agreement with the expected standard model backgrounds, which are dominated by QCD multijet production, has been observed for various combined multiplicities of jets and other reconstructed objects in the final state. Model-independent limits are set on new physics processes producing high-multiplicity, energetic final states. In addition, new model-specific indicative limits are set excluding semiclassical and quantum black holes with masses below 3.8 to 5.3TeV and string balls with masses below 4.6 to 4.8TeV . The analysis has a substantially increased sensitivity compared to previous searches
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