Search for microscopic black holes in pp collisions at sqrt(s) = 7 TeV

S. Chatrchyan; D. Sillou; M. Besancon; S. Choudhury; M. Dejardin; D. Denegri; B. Fabbro; J.L. Faure; F. Ferri; S. Ganjour; A. Givernaud; P. Gras; G. Hamel de Monchenault; P. Jarry; E. Locci; J. Malcles; M. Marionneau; L. Millischer; J. Rander; A. Rosowsky; I. Shreyber; M. Titov; S. Baffioni; F. Beaudette; L. Benhabib; L. Bianchini; M. Bluj; C. Broutin; Pierre Busson; C. Charlot; N. Daci; T. Dahms; L. Dobrzynski; S. Elgammal; R. Granier de Cassagnac; M. Haguenauer; P. Mine; C. Mironov; C. Ochando; P. Paganini; D. Sabes; R. Salerno; Y. Sirois; C. Thiebaux; C. Veelken; A. Zabi; J.-L. Agram; J. Andrea; D. Bloch; D. Bodin; J.-M. Brom; M. Cardaci; E.C. Chabert; C. Collard; E. Conte; F. Drouhin; C. Ferro; J.-C. Fontaine; D. Gele; U. Goerlach; S. Greder; P. Juillot; M. Karim; A.-C. Le Bihan; P. van Hove; F. Fassi; D. Mercier; C. Baty; S. Beauceron; N. Beaupere; M. Bedjidian; O. Bondu; G. Boudoul; D. Boumediene; H. Brun; J. Chasserat; R. Chierici; D. Contardo; P. Depasse; H. El Mamouni; A. Falkiewicz; J. Fay; S. Gascon; M. Gouzevitch; B. Ille; T. Kurca; T. Le Grand; M. Lethuillier; L. Mirabito; S. Perries; V. Sordini; S. Tosi; Y. Tschudi; P. Verdier; S. Viret

doi:10.1007/JHEP04(2012)061

Journal articles

Search for microscopic black holes in pp collisions at sqrt(s) = 7 TeV

S. Chatrchyan D. Sillou ¹ M. Besancon ² S. Choudhury ² M. Dejardin ² D. Denegri ² B. Fabbro ² J.L. Faure ² F. Ferri ² S. Ganjour ² A. Givernaud ² P. Gras ² G. Hamel de Monchenault ² P. Jarry ² E. Locci ² J. Malcles ² M. Marionneau ² L. Millischer ² J. Rander ² A. Rosowsky ² I. Shreyber ² M. Titov ² S. Baffioni ³ F. Beaudette ³ L. Benhabib ³ L. Bianchini ³ M. Bluj ³ C. Broutin ³ Pierre Busson ³ C. Charlot ³ N. Daci ³ T. Dahms ³ L. Dobrzynski ³ S. Elgammal ³ R. Granier de Cassagnac ³ M. Haguenauer ³ P. Mine ³ C. Mironov ³ C. Ochando ³ P. Paganini ³ D. Sabes ³ R. Salerno ³ Y. Sirois ³ C. Thiebaux ³ C. Veelken ³ A. Zabi ³ J.-L. Agram ⁴ J. Andrea ⁴ D. Bloch ⁴ D. Bodin ⁴ J.-M. Brom ⁴ M. Cardaci ⁴ E.C. Chabert ⁴ C. Collard ⁴ E. Conte ⁴ F. Drouhin ⁴ C. Ferro ⁴ J.-C. Fontaine ⁴ D. Gele ⁴ U. Goerlach ⁴ S. Greder ⁴ P. Juillot ⁴ M. Karim ⁴ A.-C. Le Bihan ⁴ P. van Hove ⁴ F. Fassi ⁵ D. Mercier ⁵ C. Baty ⁶ S. Beauceron ⁶ N. Beaupere ⁶ M. Bedjidian ⁷ O. Bondu ⁷ G. Boudoul ⁷ D. Boumediene ⁷ H. Brun ⁷ J. Chasserat ⁷ R. Chierici ⁷ D. Contardo ⁷ P. Depasse ⁷ H. El Mamouni ⁶ A. Falkiewicz ⁷ J. Fay ⁷ S. Gascon ⁷ M. Gouzevitch ⁷ B. Ille ⁷ T. Kurca ⁷ T. Le Grand ⁷ M. Lethuillier ⁷ L. Mirabito ⁷ S. Perries ⁷ V. Sordini ⁷ S. Tosi ⁷ Y. Tschudi ⁷ P. Verdier ⁷ S. Viret ⁷

1 LAPP - Laboratoire d'Annecy de Physique des Particules

2 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

3 LLR - Laboratoire Leprince-Ringuet

4 DRS-IPHC - Département Recherches Subatomiques

5 CC-IN2P3 - Centre de Calcul de l'IN2P3

6 CMS

IP2I Lyon - Institut de Physique des 2 Infinis de Lyon

7 IPNL - Institut de Physique Nucléaire de Lyon

Abstract : A search for microscopic black holes in pp collisions at a center-of-mass energy of 7 TeV is presented. The data sample corresponds to an integrated luminosity of 4.7 inverse femtobarns 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 5.3 TeV and string balls with masses below 4.6 to 4.8 TeV. The analysis has a substantially increased sensitivity compared to previous searches.

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Experiment [hep-ex]

Complete list of metadatas

http://hal.in2p3.fr/in2p3-00675416
Contributor : Sylvie Flores <>
Submitted on : Thursday, March 1, 2012 - 8:20:59 AM
Last modification on : Wednesday, July 22, 2020 - 9:54:22 AM

Search for microscopic black holes in pp collisions at sqrt(s) = 7 TeV

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Search for microscopic black holes in pp collisions at sqrt(s) = 7 TeV

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