Publication
Search for Standard Model Production of Four Top Quarks in the Lepton + Jets Channel in pp Collisions at $\sqrt{s}$ = 8 TeV
| dc.contributor.author | CMS collaboration (2146 authors) | |
| dc.contributor.author | Hollar, Jonathan | |
| dc.contributor.author | Nayak, Aruna | |
| dc.contributor.author | Bargassa, Pedrame | |
| dc.contributor.author | Beirão Da Cruz E Silva, Cristóvão | |
| dc.contributor.author | Faccioli, Pietro | |
| dc.contributor.author | Ferreira Parracho, Pedro Guilherme | |
| dc.contributor.author | Gallinaro, Michele | |
| dc.contributor.author | Lloret Iglesias, Lara | |
| dc.contributor.author | Nguyen, Federico | |
| dc.contributor.author | Rodrigues Antunes, Joao | |
| dc.contributor.author | Seixas, Joao | |
| dc.contributor.author | Varela, Joao | |
| dc.contributor.author | Vischia, Pietro | |
| dc.contributor.author | David Tinoco Mendes, Andre | |
| dc.contributor.author | Musella, Pasquale | |
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Pela, Joao | |
| dc.contributor.author | Leonardo, Nuno | |
| dc.date.accessioned | 2019-02-04T05:03:22Z | |
| dc.date.available | 2019-02-04T05:03:22Z | |
| dc.date.issued | 2014-11-27 | |
| dc.date.updated | 2019-02-04T05:03:22Z | |
| dc.description.abstract | A search is presented for standard model (SM) production of four top quarks $ \left(t\overline{t}t\overline{t}\right) $ in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb$^{−1}$ recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM $ t\overline{t}t\overline{t} $ production is $ {\sigma}_{t\overline{t}t\overline{t}}^{\mathrm{SM}}\approx 1\,\mathrm{f}\mathrm{b} $ . A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | JHEP 1411 (2014) 154; DOI 10.1007/JHEP11(2014)154 | |
| dc.identifier.uri | http://dx.doi.org/10.1007/JHEP11(2014)154 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26695 | |
| dc.language.iso | eng | |
| dc.title | Search for Standard Model Production of Four Top Quarks in the Lepton + Jets Channel in pp Collisions at $\sqrt{s}$ = 8 TeV | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |