Publication
Search for a narrow spin-2 resonance decaying to a pair of Z vector bosons in the semileptonic final state
| dc.contributor.author | CMS collaboration (2202 authors) | |
| dc.contributor.author | Hollar, Jonathan | |
| dc.contributor.author | Nayak, Aruna | |
| dc.contributor.author | Almeida, Nuno | |
| dc.contributor.author | Bargassa, Pedrame | |
| dc.contributor.author | David Tinoco Mendes, Andre | |
| dc.contributor.author | Faccioli, Pietro | |
| dc.contributor.author | Ferreira Parracho, Pedro Guilherme | |
| dc.contributor.author | Gallinaro, Michele | |
| dc.contributor.author | Seixas, Joao | |
| dc.contributor.author | Varela, Joao | |
| dc.contributor.author | Vischia, Pietro | |
| dc.contributor.author | Lloret Iglesias, Lara | |
| dc.contributor.author | Musella, Pasquale | |
| dc.contributor.author | Rodrigues Antunes, Joao | |
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Pela, Joao | |
| dc.contributor.author | Leonardo, Nuno | |
| dc.date.accessioned | 2019-02-03T21:06:56Z | |
| dc.date.available | 2019-02-03T21:06:56Z | |
| dc.date.issued | 2013-01-29 | |
| dc.date.updated | 2019-02-03T21:06:56Z | |
| dc.description.abstract | Results are presented from a search for a narrow, spin-2 resonance decaying into a pair of Z bosons, with one Z-boson decaying into leptons (e+e- or mu+mu-) and the other into jets. An example of such a resonance is the Kaluza--Klein graviton, G[KK], predicted in Randall--Sundrum models. The analysis is based on a 4.9 inverse femtobarn sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected with the CMS detector at the LHC. Kinematic and topological properties including decay angular distributions are used to discriminate between signal and background. No evidence for a resonance is observed, and upper limits on the production cross sections times branching fractions are set. In two models that predict Z-boson spin correlations in graviton decays, graviton masses are excluded lower than a value which varies between 610 and 945 GeV, depending on the model and the strength of the graviton couplings. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Lett. B718 (2013) 1208-1228; DOI 10.1016/j.physletb.2012.11.063 | |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.physletb.2012.11.063 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26271 | |
| dc.language.iso | eng | |
| dc.title | Search for a narrow spin-2 resonance decaying to a pair of Z vector bosons in the semileptonic final state | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |