Skip to Main content Skip to Navigation
Journal articles

Measurement of the t t-bar Production Cross Section in pp Collisions at 7 TeV in Lepton + Jets Events Using b-quark Jet Identification

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 F.X. Gentit 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 P. Verrecchia 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 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 B. Wyslouch 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 Y. Mikami 4 P. van Hove 4 F. Fassi 5 D. Mercier 5 C. Baty 6 S. Beauceron 6 N. Beaupere 6 M. Bedjidian 6 O. Bondu 6 G. Boudoul 6 D. Boumediene 6 H. Brun 6 J. Chasserat 6 R. Chierici 6 D. Contardo 6 P. Depasse 6 H. El Mamouni 7 J. Fay 6 S. Gascon 6 B. Ille 6 T. Kurca 6 T. Le Grand 6 M. Lethuillier 6 L. Mirabito 6 S. Perries 6 V. Sordini 6 S. Tosi 6 Y. Tschudi 6 P. Verdier 6
Abstract : A new measurement of the inclusive production cross section for pp to t t-bar is performed at a center-of-mass energy of 7 TeV using data collected by the CMS experiment at the LHC. The analysis uses a data sample corresponding to an integrated luminosity of 36 inverse picobarns, and is based on the final state with one isolated, high transverse momentum muon or electron, missing transverse energy, and hadronic jets. The ttbar content of the selected events is enhanced by requiring the presence of at least one jet consistent with b-quark hadronization. The measured cross section is 150 +/- 9 (stat.) +/- 17 syst.) +/- 6 (lumi.) pb and is in agreement with higher-order QCD calculations. The combination of this measurement with a previous CMS result based on dileptons gives 154 +/- 17 (stat.+syst.) +/- 6 (lumi.) pb.
Document type :
Journal articles
Complete list of metadata

http://hal.in2p3.fr/in2p3-00624257
Contributor : Claudine Bombar <>
Submitted on : Friday, September 16, 2011 - 11:25:38 AM
Last modification on : Thursday, June 17, 2021 - 3:18:40 PM

Links full text

Identifiers

Citation

S. Chatrchyan, D. Sillou, M. Besancon, S. Choudhury, M. Dejardin, et al.. Measurement of the t t-bar Production Cross Section in pp Collisions at 7 TeV in Lepton + Jets Events Using b-quark Jet Identification. Physical Review D, American Physical Society, 2011, 84, pp.092004. ⟨10.1103/PhysRevD.84.092004⟩. ⟨in2p3-00624257⟩

Share

Metrics

Record views

528