Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at sqrt(s) = 8 TeV
V. Khachatryan
,
S. Baffioni
(1)
,
F. Beaudette
(1)
,
P. Busson
(1)
,
C. Charlot
(1)
,
T. Dahms
(1)
,
M. Dalchenko
(1)
,
L. Dobrzynski
(1)
,
N. Filipovic
(1)
,
A. Florent
(1)
,
R. Granier de Cassagnac
(1)
,
L. Mastrolorenzo
(1)
,
P. Mine
(1)
,
C. Mironov
(1)
,
I.N. Naranjo
(1)
,
M. Nguyen
(1)
,
C. Ochando
(1)
,
P. Paganini
(1)
,
R. Salerno
(1)
,
J.B. Sauvan
(1)
,
Y. Sirois
(1)
,
C. Veelken
(1)
,
Y. Yilmaz
(1)
,
A. Zabi
(1)
,
J.-L. Agram
(2)
,
J. Andrea
(2)
,
A. Aubin
(2)
,
D. Bloch
(2)
,
J.-M. Brom
(2)
,
E.C. Chabert
(2)
,
C. Collard
(2)
,
E. Conte
(2)
,
J.-C. Fontaine
(2)
,
D. Gele
(2)
,
U. Goerlach
(2)
,
C. Goetzmann
(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)
,
C.A. Carrillo Montoya
(4)
,
A. Carvalho
(4)
,
Antunes de Oliveira
(4)
,
J. Chasserat
(4)
,
R. Chierici
(4)
,
D. Contardo
(4)
,
P. Depasse
(4)
,
H. El Mamouni
(4)
,
J. Fan
(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)
,
J.D. Ruiz Alvarez
(4)
,
D. Sabes
(4)
,
L. Sgandurra
(4)
,
V. Sordini
(4)
,
M. Vander Donckt
(4)
,
P. Verdier
(4)
,
S. Viret
(4)
,
H. Xiao
(4)
V. Khachatryan
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P. Busson
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R. Granier de Cassagnac
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C. Mironov
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P. Paganini
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J.-L. Agram
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C. Collard
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E. Conte
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P. van Hove
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M. Gouzevitch
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M. Lethuillier
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V. Sordini
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P. Verdier
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S. Viret
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Résumé
A search for new resonances decaying to WW, ZZ, or WZ is presented. Final states are considered in which one of the vector bosons decays leptonically and the other hadronically. Results are based on data corresponding to an integrated luminosity of 19.7 inverse femtobarns recorded in proton-proton collisions at sqrt(s) = 8 TeV with the CMS detector at the CERN LHC. Techniques aiming at identifying jet substructures are used to analyze signal events in which the hadronization products from the decay of highly boosted W or Z bosons are contained within a single reconstructed jet. Upper limits on the production of generic WW, ZZ, or WZ resonances are set as a function of the resonance mass and width. We increase the sensitivity of the analysis by statistically combining the results of this search with a complementary study of the all-hadronic final state. Upper limits at 95% confidence level are set on the bulk graviton production cross section in the range from 700 to 10 inverse femtobarns for resonance masses between 600 and 2500 GeV, respectively. These limits on the bulk graviton model are the most stringent to date in the diboson final state.