Publication
Search for the standard model Higgs boson in the decay channel $H$ to $Z Z$ to 4 leptons in $pp$ collisions at $\sqrt{s}=7$ TeV
| dc.contributor.author | CMS collaboration (2274 authors) | |
| dc.contributor.author | Hollar, Jonathan | |
| 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 | Musella, Pasquale | |
| dc.contributor.author | Nayak, Aruna | |
| dc.contributor.author | Pela, Joao | |
| dc.contributor.author | Ribeiro, Pedro Quinaz | |
| dc.contributor.author | Seixas, Joao | |
| dc.contributor.author | Varela, Joao | |
| dc.contributor.author | Vischia, Pietro | |
| dc.contributor.author | Lloret Iglesias, Lara | |
| dc.contributor.author | Rodrigues Antunes, Joao | |
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Leonardo, Nuno | |
| dc.date.accessioned | 2019-02-03T18:53:40Z | |
| dc.date.available | 2019-02-03T18:53:40Z | |
| dc.date.issued | 2012-02 | |
| dc.date.updated | 2019-02-03T18:53:40Z | |
| dc.description.abstract | A search for a Higgs boson in the four-lepton decay channel H to ZZ, with each Z boson decaying to an electron or muon pair, is reported. The search covers Higgs boson mass hypotheses in the range 110 < mH < 600 GeV. The analysis uses data corresponding to an integrated luminosity of 4.7 inverse femtobarns recorded by the CMS detector in pp collisions at sqrt(s) = 7 TeV from the LHC. Seventy-two events are observed with four-lepton invariant mass m[4 leptons] > 100 GeV (with thirteen below 160 GeV), while 67.1 +/- 6.0 (9.5 +/-1.3) events are expected from background. The four-lepton mass distribution is consistent with the expectation of standard model background production of ZZ pairs. Upper limits at 95% confidence level exclude the standard model Higgs boson in the ranges 134-158 GeV, 180-305 GeV, and 340 -465 GeV. Small excesses of events are observed around masses of 119, 126, and 320 GeV, making the observed limits weaker than expected in the absence of a signal. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Rev.Lett. 108 (2012) 111804; DOI 10.1103/PhysRevLett.108.111804 | |
| dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevLett.108.111804 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26097 | |
| dc.language.iso | eng | |
| dc.title | Search for the standard model Higgs boson in the decay channel $H$ to $Z Z$ to 4 leptons in $pp$ collisions at $\sqrt{s}=7$ TeV | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |