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Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton-proton collisions at 7 TeV

S. Chatrchyan M. Besançon 1 S. Choudhury 1 M. Dejardin 1 D. Denegri 1 B. Fabbro 1 J.L. Faure 1 F. Ferri 1 S. Ganjour 1 A. Givernaud 1 P. Gras 1 G. Hamel de Monchenault 1 P. Jarry 1 E. Locci 1 J. Malcles 1 L. Millischer 1 A. Nayak 1 J. Rander 1 A. Rosowsky 1 M. Titov 1 S. Baffioni 2 F. Beaudette 2 L. Benhabib 2 L. Bianchini 2 M. Bluj 2 Pierre Busson 2 C. Charlot 2 N. Daci 2 T. Dahms 2 M. Dalchenko 2 L. Dobrzynski 2 A. Florent 2 R. Granier de Cassagnac 2 M. Haguenauer 2 P. Mine 2 C. Mironov 2 I.N. Naranjo 2 M. Nguyen 2 C. Ochando 2 P. Paganini 2 D. Sabes 2 R. Salerno 2 Y. Sirois 2 C. Veelken 2 A. Zabi 2 J.-L. Agram 3 J. Andrea 3 D. Bloch 3 D. Bodin 3 J.-M. Brom 3 M. Cardaci 3 E.C. Chabert 3 C. Collard 3 E. Conte 3 F. Drouhin 3 J.-C. Fontaine 3 D. Gele 3 U. Goerlach 3 P. Juillot 3 A.-C. Le Bihan 3 P. van Hove 3 S. Beauceron 4 N. Beaupere 4 O. Bondu 4 G. Boudoul 4 S. Brochet 4 J. Chasserat 4 R. Chierici 4 D. Contardo 4 P. Depasse 4 H. El Mamouni 4 J. Fay 4 S. Gascon 4 M. Gouzevitch 4 B. Ille 4 T. Kurca 4 M. Lethuillier 4 L. Mirabito 4 S. Perries 4 L. Sgandurra 4 V. Sordini 4 Y. Tschudi 4 P. Verdier 4 S. Viret 4 
Abstract : A search for a neutral Higgs boson decaying to a pair of b quarks, and produced in association with at least one additional b quark, is presented. Multijet final states with three jets identified as originating from b quarks, at least one of which may include a non-isolated muon, are studied. The data used in this analysis correspond to an integrated luminosity of 2.7-4.8 inverse femtobarns, collected by the CMS experiment in proton-proton collisions at the LHC at a center-of-mass energy of 7 TeV. This search is particularly sensitive to Higgs bosons in MSSM scenarios with large values of tan(beta). No excess over the predicted background from standard model processes is observed. Stringent upper limits on cross section times branching fraction are derived and interpreted as bounds in the MSSM tan(beta) and M[A] parameter-space. Observed 95% confidence level upper limits reach as low as tan(beta)~18 for M[A]~100 GeV.
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Submitted on : Wednesday, February 13, 2013 - 8:02:18 AM
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S. Chatrchyan, M. Besançon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton-proton collisions at 7 TeV. Physics Letters B, Elsevier, 2013, 722, pp.207-232. ⟨10.1016/j.physletb.2013.04.017⟩. ⟨in2p3-00787800⟩



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