| dc.creator | Anduaga, Xabier Sebastián | |
| dc.creator | Dova, María Teresa | |
| dc.creator | Monticelli, Fernando Gabriel | |
| dc.creator | Tripiana, Martín F. | |
| dc.creator | Wahlberg, Hernán Pablo | |
| dc.creator | The ATLAS Collaboration | |
| dc.date | 2012-06-15 | |
| dc.date | 2019-08-26T12:50:26Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/79714 | |
| dc.identifier | issn:1434-6052 | |
| dc.description | A measurement of the top-antitop production charge asymmetry <i>A<sub>C</sub></i> is presented using data corresponding to an integrated luminosity of 1.04 fb<sup>−1</sup> of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t ̄t event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of <i>A<sub>C</sub></i> is <i>A<sub>C</sub></i> = −0.019±0.028 (stat.)±0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of <i>A<sub>C</sub></i> = 0.006 ± 0.002. Measurements of <i>A<sub>C</sub></i> in two ranges of invariant mass of the top-antitop pair are also shown. | |
| dc.description | Facultad de Ciencias Exactas | |
| dc.format | application/pdf | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
| dc.rights | Creative Commons Attribution 4.0 International (CC BY 4.0) | |
| dc.subject | Ciencias Exactas | |
| dc.subject | Física | |
| dc.subject | top quark | |
| dc.subject | proton-proton collisions | |
| dc.subject | ATLAS detector | |
| dc.title | Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector | |
| dc.type | Articulo | |
| dc.type | Articulo | |
