Journal articles
Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at sqrt(s) = 7 TeV
S. Chatrchyan
S. Baffioni
1
F. Beaudette
1
L. Benhabib
1
M. Bluj
1
P. Busson
1
C. Charlot
1
N. Daci
1
T. Dahms
1
M. Dalchenko
1
L. Dobrzynski
1
A. Florent
1
R. Granier de Cassagnac
1
M. Haguenauer
1
P. Mine
1
C. Mironov
1
I.N. Naranjo
1
M. Nguyen
1
C. Ochando
1
P. Paganini
1
D. Sabes
1
R. Salerno
1
Y. Sirois
1
C. Veelken
1
A. Zabi
1
J.-L. Agram
2
J. Andrea
2
D. Bloch
2
J.-M. Brom
2
E.C. Chabert
2
C. Collard
2
E. Conte
2
F. Drouhin
2
J.-C. Fontaine
2
D. Gele
2
U. Goerlach
2
C. Goetzmann
2
P. Juillot
2
A.-C. Le Bihan
2
P. van Hove
2
S. Gadrat
3
S. Beauceron
4
N. Beaupere
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
M. Vander Donckt
4
P. Verdier
4
S. Viret
4
S. Chatrchyan
Author
S. Baffioni 1
Author IdHAL : stephanie-barrillon ORCID : https://orcid.org/0000-0002-7075-1673
F. Beaudette 1
Author
L. Benhabib 1
Author
R. Granier de Cassagnac 1
Author IdHAL : raphgrandecass arXiv : https://arxiv.org/a/rgdc ORCID : https://orcid.org/0000-0002-1275-7292
M. Haguenauer 1
Author
P. Mine 1
Author
C. Mironov 1
Author
I.N. Naranjo 1
Author
M. Nguyen 1
Author
C. Ochando 1
Author
P. Paganini 1
Author IdHAL : pascal-paganini ORCID : https://orcid.org/0000-0001-9580-683X
M. Gouzevitch 4
Author
B. Ille 4
Author
T. Kurca 4
Author
M. Lethuillier 4
Author IdHAL : morgan-lethuillier ORCID : https://orcid.org/0000-0001-6185-2045
L. Mirabito 4
Author
S. Perries 4
Author
L. Sgandurra 4
Author
V. Sordini 4
Author IdHAL : viola-sordini ORCID : https://orcid.org/0000-0003-0885-824X
1
LLR - Laboratoire Leprince-Ringuet (Route de Saclay - 91128 Palaiseau Cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7638 (France)
2
IPHC - Institut Pluridisciplinaire Hubert Curien (23 rue Loess - BP 28 67037 Strasbourg Cedex - France)
- UNISTRA - Université de Strasbourg (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR7178 (France)
3
CC-IN2P3 - Centre de Calcul de l'IN2P3 (Domaine scientifique de La Doua
43 bd du 11 Novembre 1918
69622 Villeurbanne Cedex - France)
4
IPNL - Institut de Physique Nucléaire de Lyon (Campus LyonTech-la Doua
Bâtiment Paul DIRAC
4 Rue Enrico Fermi
69622 Villeurbanne Cedex - France)
- UCBL - Université Claude Bernard Lyon 1 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR5822 (France)
Abstract : The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were recorded in 2011 with the CMS detector and correspond to an integrated luminosity of 5 inverse femtobarns. The Z(ll)+b-jets cross sections (where ll = mu mu or ee) are measured for a Z boson produced with exactly one or at least two b jets. In addition, a cross section ratio is extracted for a Z boson produced with at least one b jet relative to a Z boson produced with at least one jet. The measured cross sections are compared to various theoretical predictions, and the data favour the predictions in the five-flavour scheme, where b quarks are assumed massless. The kinematic properties of the reconstructed particles are compared with the predictions from the MADGRAPH event generator using the PYTHIA parton shower simulation.
Document type :
Journal articles
Complete list of metadatas
http://hal.in2p3.fr/in2p3-00945588
Contributor : Sylvie Flores <>
Submitted on : Wednesday, February 12, 2014 - 3:38:01 PM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM
Contributor : Sylvie Flores <>
Submitted on : Wednesday, February 12, 2014 - 3:38:01 PM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM
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Identifiers
- HAL Id : in2p3-00945588, version 1
- ARXIV : 1402.1521
- DOI : 10.1007/JHEP06(2014)120
Collections
IN2P3 | IPHC | DRS-IPHC | LLR | CNRS | X | X-LLR | UNIV-LYON1 | SITE-ALSACE | X-DEP-PHYS | IP2I | UDL
Citation
S. Chatrchyan, S. Baffioni, F. Beaudette, L. Benhabib, M. Bluj, et al.. Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at sqrt(s) = 7 TeV. Journal of High Energy Physics, Springer, 2014, 6, pp.120. ⟨10.1007/JHEP06(2014)120⟩. ⟨in2p3-00945588⟩
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