Article Dans Une Revue Physics Letters B Année : 2012

Search for the standard model Higgs boson decaying to bottom quarks 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 (6) , 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)
S. Chatrchyan
  • Fonction : Auteur
Pierre Busson
C. Mironov
P. Paganini
J.-L. Agram
E. Conte
C. Baty
  • Fonction : Auteur
S. Beauceron
  • Fonction : Auteur
N. Beaupere
M. Bedjidian
  • Fonction : Auteur
D. Contardo
H. El Mamouni
  • Fonction : Auteur
S. Viret

Résumé

A search for the standard model Higgs boson (H) decaying to a b-quark pair when produced in association with weak vector bosons (V) is reported for the following modes: W(mu,nu)H, W(e,nu)H, Z(mu,mu)H, Z(e,e)H and Z(nu,nu)H. The search is performed in a data sample corresponding to an integrated luminosity of 4.7 inverse femtobarns, recorded by the CMS detector in proton-proton collisions at the LHC with a center-of-mass energy of 7 TeV. No significant excess of events above the expectation from background is observed. Upper limits on the VH production cross section times the H to b-quark pair branching ratio, with respect to the expectations for a standard model Higgs boson, are derived for a Higgs boson in the mass range 110-135 GeV. In this range, the observed 95% confidence level upper limits vary from 3.4 to 7.5 times the standard model prediction; the corresponding expected limits vary from 2.7 to 6.7.

Dates et versions

in2p3-00672303 , version 1 (21-02-2012)

Identifiants

Citer

S. Chatrchyan, D. Sillou, M. Besancon, S. Choudhury, M. Dejardin, et al.. Search for the standard model Higgs boson decaying to bottom quarks in pp collisions at sqrt(s)=7 TeV. Physics Letters B, 2012, 710, pp.284-306. ⟨10.1016/j.physletb.2012.02.085⟩. ⟨in2p3-00672303⟩
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