| dc.contributor.author | Aguilar Saavedra, Juan Antonio | |
| dc.contributor.author | Atlas Collaboration | |
| dc.date.accessioned | 2019-02-19T13:03:32Z | |
| dc.date.available | 2019-02-19T13:03:32Z | |
| dc.date.issued | 2018 | |
| dc.identifier.citation | Atlas Collaboration. Measurement of the inclusive and fiducial t¯t production cross-sections in the lepton+jets channel in pp collisions at √ s = 8 TeV with the ATLAS detector. Eur. Phys. J. C (2018) 78:487. [] | es_ES |
| dc.identifier.issn | 1434-6052 | |
| dc.identifier.uri | http://hdl.handle.net/10481/54801 | |
| dc.description.abstract | The inclusive and fiducial t ¯t production crosssections
are measured in the lepton+jets channel using
20.2 fb−1 of proton–proton collision data at a centre-ofmass
energy of 8 TeV recorded with the ATLAS detector
at the LHC. Major systematic uncertainties due to the modelling
of the jet energy scale and b-tagging efficiency are
constrained by separating selected events into three disjoint
regions. In order to reduce systematic uncertainties in the
most important background, the W+jets process is modelled
using Z+jets events in a data-driven approach. The inclusive
t ¯t cross-section is measured with a precision of 5.7% to be
σinc(t ¯t) = 248.3±0.7 (stat.)±13.4 (syst.)±4.7 (lumi.) pb,
assuming a top-quark mass of 172.5 GeV. The result is in
agreement with the Standard Model prediction. The crosssection
is also measured in a phase space close to that of
the selected data. The fiducial cross-section is σfid(t ¯t) =
48.8±0.1 (stat.)±2.0 (syst.)±0.9 (lumi.) pb with a precision
of 4.5%. | es_ES |
| dc.description.sponsorship | Funded by SCOAP3 | es_ES |
| dc.language.iso | eng | es_ES |
| dc.publisher | Springer International Publishing | es_ES |
| dc.rights | Atribución 3.0 España | * |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
| dc.title | Measurement of the inclusive and fiducial t¯t production cross-sections in the lepton+jets channel in pp collisions at √ s = 8 TeV with the ATLAS detector | es_ES |
| dc.type | journal article | es_ES |
| dc.rights.accessRights | open access | es_ES |