Measurement of the top quark mass in the lepton+jets channel using the Ideogram Method
| dc.creator | D0 Collaboration | |
| dc.creator | Abazov, V. | |
| dc.date | 2007-02-09 | |
| dc.date.accessioned | 2026-07-07T11:58:21Z | |
| dc.date.available | 2026-07-07T11:58:21Z | |
| dc.description | A measurement of the top quark mass using events with one charged lepton, missing transverse energy, and jets in the final state, collected by the D0 detector from p-pbar collisions at sqrt{s} = 1.96 TeV at the Fermilab Tevatron collider, is presented. A constrained fit is used to fully reconstruct the kinematics of the events. For every event a top quark mass likelihood is calculated taking into account all possible jet assignments and the probability that an event is signal or background. Lifetime-based identification of b jets is employed to enhance the separation between t-tbar signal and background from other physics processes and to improve the assignment of the observed jets to the quarks in the t-tbar hypothesis. We extract a multiplicative jet energy scale factor JES in-situ, greatly reducing the systematic effect related to the jet energy measurement. In a data sample with an integrated luminosity of 425 pb-1, we observe 230 candidate events, with an estimated background of 123 events, and measure m_t = 173.7 +-4.4 (stat + JES) +2.1/-2.0 (syst) GeV. This result represents the first application of the Ideogram technique to the measurement of the top quark mass in lepton+jets events. | |
| dc.description | submitted to Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0702018 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0702018 | |
| dc.identifier | Phys.Rev.D75:092001,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.092001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206198 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the top quark mass in the lepton+jets channel using the Ideogram Method | |
| dc.type | text |