Article Dans Une Revue Physical Review D Année : 2011

Measurement of the B^0_s Production Cross Section with B^0_s ->J/Psi phi Decays 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) , 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)
S. Chatrchyan
  • Fonction : Auteur
Pierre Busson
C. Mironov
P. Paganini
J.-L. Agram
E. Conte
D. Contardo
H. El Mamouni
  • Fonction : Auteur

Résumé

The B^0_s differential production cross section is measured as functions of the transverse momentum and rapidity in pp collisions at sqrt(s) = 7 TeV, using the J/Psi phi decay, and compared with predictions based on perturbative QCD calculations at next-to-leading order. The data sample, collected by the CMS experiment at the LHC, corresponds to an integrated luminosity of 40 inverse picobarns. The B^0_s is reconstructed from the decays J/Psi to an oppositely charged muon pair and phi to K+ K-. The integrated B^0_s cross section times B^0_s to J/Psi phi branching fraction in the range 8 < pt(B) < 50 GeV/c and |y(b)| < 2.4 is measured to be 6.9 +/- 0.6 +/- 0.6 nb, where the first uncertainty is statistical and the second is systematic.

Dates et versions

in2p3-00602324 , version 1 (22-06-2011)

Identifiants

Citer

S. Chatrchyan, D. Sillou, M. Besancon, S. Choudhury, M. Dejardin, et al.. Measurement of the B^0_s Production Cross Section with B^0_s ->J/Psi phi Decays in pp Collisions at sqrt(s) = 7 TeV. Physical Review D, 2011, 84, pp.052008. ⟨10.1103/PhysRevD.84.052008⟩. ⟨in2p3-00602324⟩
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