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Search for large extra dimensions in dimuon and dielectron events 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 7 N. Beaupere 7 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
Abstract : Results are presented from a search for large, extra spatial dimensions in events with either two isolated muons or two isolated electrons. The data are from proton-proton interactions at sqrt(s) = 7 TeV collected with the CMS detector at the LHC. The size of the data sample corresponds to an integrated luminosity of approximately 2 inverse femtobarns. The observed dimuon and dielectron mass spectra are found to be consistent with standard-model expectations. Depending on the number of extra dimensions, the limits at 95% confidence level are in the range 2.5 TeV < Ms < 3.8 TeV, where Ms characterizes the scale for the onset of quantum gravity.
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Submitted on : Monday, February 20, 2012 - 8:51:58 AM
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S. Chatrchyan, D. Sillou, M. Besancon, S. Choudhury, M. Dejardin, et al.. Search for large extra dimensions in dimuon and dielectron events in pp collisions at sqrt(s) = 7 TeV. Physics Letters B, Elsevier, 2012, 711, pp.15-34. ⟨10.1016/j.physletb.2012.03.029⟩. ⟨in2p3-00671940⟩

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