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Inclusive b-jet production 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 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 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
Abstract : The inclusive b-jet production cross section in pp collisions at a center-of-mass energy of 7 TeV is measured using data collected by the CMS experiment at the LHC. The cross section is presented as a function of the jet transverse momentum in the range 18 < pT < 200 GeV for several rapidity intervals. The results are also given as the ratio of the b-jet production cross section to the inclusive jet production cross section. The measurement is performed with two different analyses, which differ in their trigger selection and b-jet identification: a jet analysis that selects events with a b jet using a sample corresponding to an integrated luminosity of 34 inverse picobarns, and a muon analysis requiring a b jet with a muon based on an integrated luminosity of 3 inverse picobarns. In both approaches the b jets are identified by requiring a secondary vertex. The results from the two methods are in agreement with each other and with next-to-leading order calculations, as well as with predictions based on the PYTHIA event generator.
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Submitted on : Wednesday, February 22, 2012 - 7:32:01 AM
Last modification on : Wednesday, July 22, 2020 - 9:54:21 AM

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S. Chatrchyan, D. Sillou, M. Besancon, S. Choudhury, M. Dejardin, et al.. Inclusive b-jet production in pp collisions at sqrt(s)=7 TeV. Journal of High Energy Physics, Springer, 2012, 04, pp.084. ⟨10.1007/JHEP04(2012)084⟩. ⟨in2p3-00672794⟩

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