Search for exotic resonances decaying into WZ/ZZ in pp collisions at sqrt(s) = 7 TeV
S. Chatrchyan
,
M. Besançon
(1)
,
S. Choudhury
(1)
,
M. Dejardin
(1)
,
D. Denegri
(1)
,
B. Fabbro
(1)
,
J.L. Faure
(1)
,
F. Ferri
(1)
,
S. Ganjour
(1)
,
A. Givernaud
(1)
,
P. Gras
(1)
,
G. Hamel de Monchenault
(1)
,
P. Jarry
(1)
,
E. Locci
(1)
,
J. Malcles
(1)
,
L. Millischer
(1)
,
A. Nayak
(1)
,
J. Rander
(1)
,
A. Rosowsky
(1)
,
I. Shreyber
(1)
,
M. Titov
(1)
,
S. Baffioni
(2)
,
F. Beaudette
(2)
,
L. Benhabib
(2)
,
L. Bianchini
(2)
,
M. Bluj
(2)
,
C. Broutin
(2)
,
Pierre Busson
(2)
,
C. Charlot
(2)
,
N. Daci
(2)
,
T. Dahms
(2)
,
L. Dobrzynski
(2)
,
R. Granier de Cassagnac
(2)
,
M. Haguenauer
(2)
,
P. Mine
(2)
,
C. Mironov
(2)
,
I.N. Naranjo
(2)
,
M. Nguyen
(2)
,
C. Ochando
(2)
,
P. Paganini
(2)
,
D. Sabes
(2)
,
R. Salerno
(2)
,
Y. Sirois
(2)
,
C. Veelken
(2)
,
A. Zabi
(2)
,
J.-L. Agram
(3)
,
J. Andrea
(3)
,
D. Bloch
(3)
,
D. Bodin
(3)
,
J.-M. Brom
(3)
,
M. Cardaci
(3)
,
E.C. Chabert
(3)
,
C. Collard
(3)
,
E. Conte
(3)
,
F. Drouhin
(3)
,
C. Ferro
(3)
,
J.-C. Fontaine
(3)
,
D. Gele
(3)
,
U. Goerlach
(3)
,
P. Juillot
(3)
,
A.-C. Le Bihan
(3)
,
P. van Hove
(3)
,
F. Fassi
(4)
,
D. Mercier
(4)
,
S. Beauceron
(5)
,
N. Beaupere
(5)
,
O. Bondu
(5)
,
G. Boudoul
(5)
,
J. Chasserat
(5)
,
R. Chierici
(5)
,
D. Contardo
(5)
,
P. Depasse
(5)
,
H. El Mamouni
(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)
,
V. Sordini
(5)
,
Y. Tschudi
(5)
,
P. Verdier
(5)
,
S. Viret
(5)
S. Chatrchyan
- Function : Author
Pierre Busson
- Function : Author
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R. Granier de Cassagnac
- Function : Author
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C. Mironov
- Function : Author
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P. Paganini
- Function : Author
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J.-L. Agram
- Function : Author
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C. Collard
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E. Conte
- Function : Author
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P. van Hove
- Function : Author
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M. Gouzevitch
- Function : Author
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- IdHAL : maxime-gouzevitch
- ORCID : 0000-0002-5524-880X
- IdRef : 13627160X
M. Lethuillier
- Function : Author
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- IdHAL : morgan-lethuillier
- ORCID : 0000-0001-6185-2045
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V. Sordini
- Function : Author
- PersonId : 739810
- IdHAL : viola-sordini
- ORCID : 0000-0003-0885-824X
- IdRef : 128184035
P. Verdier
- Function : Author
- PersonId : 184664
- IdHAL : patrice-verdier
- ORCID : 0000-0003-3090-2948
- IdRef : 098525859
Abstract
A search for new exotic particles decaying to the VZ final state is performed, where V is either a W or a Z boson decaying into two overlapping jets and the Z decays into a pair of electrons, muons or neutrinos. The analysis uses a data sample of pp collisions corresponding to an integrated luminosity of 5 inverse femtobarns collected by the CMS experiment at the LHC at sqrt(s) = 7 TeV in 2011. No significant excess is observed in the mass distribution of the VZ candidates compared with the background expectation from standard model processes. Model-dependent upper limits at the 95% confidence level are set on the product of the cross section times the branching fraction of hypothetical particles decaying to the VZ final state as a function of mass. Sequential standard model W' bosons with masses between 700 and 940 GeV are excluded. In the Randall-Sundrum model for graviton resonances with a coupling parameter of 0.05, masses between 750 and 880 GeV are also excluded.