Journal articles
Measurements of the ZZ production cross sections in the 2 l 2 nu channel in proton-proton collisions at sqrt(s) = 7 and 8 TeV and combined constraints on triple gauge couplings
V. Khachatryan
M. Besançon
1
F. Couderc
1
M. Dejardin
1
B. Fabbro
1
J.L. Faure
1
C. Favaro
1
F. Ferri
1
S. Ganjour
1
A. Givernaud
1
P. Gras
1
D. Denegri
1
G. Hamel De Monchenault
1
P. Jarry
1
E. Locci
1
J. Malcles
1
J. Rander
1
A. Rosowsky
1
M. Titov
1
S. Baffioni
2
F. Beaudette
2
P. Busson
2
C. Charlot
2
T. Dahms
2
M. Dalchenko
2
L. Dobrzynski
2
N. Filipovic
2
A. Florent
2
R. Granier De Cassagnac
2
L. Mastrolorenzo
2
P. Miné
2
C. Mironov
2
I.N. Naranjo
2
M. Nguyen
2
C. Ochando
2
G. Ortona
2
P. Paganini
2
S. Regnard
2
R. Salerno
2
J.B. Sauvan
2
Y. Sirois
2
C. Veelken
2
Y. Yilmaz
2
A. Zabi
2
J.-L. Agram
3
J. Andrea
3
A. Aubin
3
D. Bloch
3
J.-M. Brom
3
E.C. Chabert
3
C. Collard
3
E. Conte
3
J.-C. Fontaine
3
D. Gelé
3
U. Goerlach
3
C. Goetzmann
3
A.-C. Le Bihan
3
K. Skovpen
3
P. Van Hove
3
S. Gadrat
4
S. Beauceron
5
N. Beaupere
5
C. Bernet
5
G. Boudoul
5
E. Bouvier
5
S. Brochet
5
C.A. Carrillo Montoya
5
J. Chasserat
5
R. Chierici
5
D. Contardo
5
P. Depasse
5
H. El Mamouni
5
J. Fan
5
J. Fay
5
S. Gascon
5
M. Gouzevitch
5
B. Ille
5
T. Kurca
5
M. Lethuillier
5
L. Mirabito
5
S. Perries
5
J.D. Ruiz Alvarez
5
D. Sabes
5
L. Sgandurra
5
V. Sordini
5
M. Vander Donckt
5
P. Verdier
5
S. Viret
5
H. Xiao
5
J. Rander 1
Author
A. Rosowsky 1
Author
M. Titov 1
Author
S. Baffioni 2
Author IdHAL : stephanie-barrillon ORCID : https://orcid.org/0000-0002-7075-1673
R. Granier De Cassagnac 2
Author IdHAL : raphgrandecass arXiv : https://arxiv.org/a/rgdc ORCID : https://orcid.org/0000-0002-1275-7292
L. Mastrolorenzo 2
Author
P. Miné 2
Author
C. Mironov 2
Author
P. Paganini 2
Author IdHAL : pascal-paganini ORCID : https://orcid.org/0000-0001-9580-683X
S. Regnard 2
Author
R. Salerno 2
Author
J.B. Sauvan 2
Author
V. Sordini 5
Author IdHAL : viola-sordini ORCID : https://orcid.org/0000-0003-0885-824X
M. Vander Donckt 5
Author
P. Verdier 5
Author
S. Viret 5
Author
H. Xiao 5
Author
1
IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (CEA Saclay
F-91191 Gif sur Yvette cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/IRFU (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
2
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)
3
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)
4
CC-IN2P3 - Centre de Calcul de l'IN2P3 (Domaine scientifique de La Doua
43 bd du 11 Novembre 1918
69622 Villeurbanne Cedex - France)
5
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 : Measurements of the ZZ production cross sections in proton-proton collisions at center-of-mass energies of 7 and 8 TeV are presented. Candidate events for the leptonic decay mode ZZ to 2 l 2 nu, where l denotes an electron or a muon, are reconstructed and selected from data corresponding to an integrated luminosity of 5.1 (19.6) inverse femtobarns at 7 (8) TeV collected with the CMS experiment. The measured cross sections, sigma(pp to ZZ) = 5.2 -1.4 +1.5 (stat) -1.1 +1.4 (syst) +/- 0.2 (lumi) pb at 7 TeV, and 6.9 -0.8 +0.8 (stat.) -1.4 +1.8 (syst) +/- 0.3 (lumi) pb at 8 TeV, are in good agreement with the standard model predictions with next-to-leading-order accuracy. The selected data are analyzed to search for anomalous triple gauge couplings involving the ZZ final state. In the absence of any deviation from the standard model predictions, limits are set on the relevant parameters. These limits are then combined with the previously published CMS results for ZZ in 4 l final states, yielding the most stringent constraints on the anomalous couplings.
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Journal articles
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http://hal.in2p3.fr/in2p3-01139010
Contributor : Dominique Girod <>
Submitted on : Friday, April 3, 2015 - 11:27:34 AM
Last modification on : Friday, November 20, 2020 - 5:38:01 PM
Contributor : Dominique Girod <>
Submitted on : Friday, April 3, 2015 - 11:27:34 AM
Last modification on : Friday, November 20, 2020 - 5:38:01 PM
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- HAL Id : in2p3-01139010, version 1
- ARXIV : 1503.05467
- DOI : 10.1140/epjc/s10052-015-3706-0
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V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, B. Fabbro, et al.. Measurements of the ZZ production cross sections in the 2 l 2 nu channel in proton-proton collisions at sqrt(s) = 7 and 8 TeV and combined constraints on triple gauge couplings. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2015, 75, pp.511. ⟨10.1140/epjc/s10052-015-3706-0⟩. ⟨in2p3-01139010⟩
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