Bulletin of the American Physical Society
APS April Meeting 2014
Volume 59, Number 5
Saturday–Tuesday, April 5–8, 2014; Savannah, Georgia
Session J13: Top and Electroweak Physics |
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Sponsoring Units: GPMFC DPF Chair: Howard Haber, University of California, Santa Cruz Room: 101 |
Sunday, April 6, 2014 10:45AM - 10:57AM |
J13.00001: Preliminary measurement of the top quark pair production in the $\tau$ + jets final state with 20 $fb^{-1}$ of $pp$ collision data recorded at $\sqrt{s} = 8$ TeV with the ATLAS experiment Ahmed Hasib, Catrin Bernius, Phillip Gutierrez A preliminary measurement of the top quark pair production cross section in the final state containing a tau lepton that has decayed semi-hadronically and associated jets is presented. The signal events are required to have at least four jets with at least one that is a b-tagged jet. The analysis uses data with an integrated luminosity of 20 $fb^{-1}$ recorded by the ATLAS experiment in proton-proton collisions at the Large Hadron Collider at a center-of-mass energy of 8 TeV. [Preview Abstract] |
Sunday, April 6, 2014 10:57AM - 11:09AM |
J13.00002: ABSTRACT WITHDRAWN |
Sunday, April 6, 2014 11:09AM - 11:21AM |
J13.00003: Measurement of inclusive top pair plus photon production cross-section Mikhail Makouski A measurement is presented of the production cross-section of top-quark pairs associated with a photon in proton-proton collisions at a centre-of-mass energy of 8 TeV. The data were recorded at the CMS experiment at the LHC in the year 2012. The measurement is performed in the decay channel with one electron and jets in the final state. Data-driven methods are used to estimate the photon identification efficiency and purity. The measured cross-section is compared with the standard model expectation. [Preview Abstract] |
Sunday, April 6, 2014 11:21AM - 11:33AM |
J13.00004: CP violation in top-quark pair production and decay Ahmed Rashed The LHC becomes a top-quark factory with high precision measurements. This provides a unique chance for searching for new sources of CP violation in the top sector. We search for CP violation in the top-quark production. We introduce the contribution of new physics in the top-pair production with CP violating odd and even couplings. We will discuss this study at the LHC. [Preview Abstract] |
Sunday, April 6, 2014 11:33AM - 11:45AM |
J13.00005: ABSTRACT WITHDRAWN |
Sunday, April 6, 2014 11:45AM - 11:57AM |
J13.00006: $W$ boson mass measurement with D0 data Jenny Holzbauer We present current progress of the measurement of the $W$ boson mass using the full D0 data set. The data were collected from proton and anti-proton collisions produced by the Tevatron at 1.96 TeV center of mass energy. The analysis uses only events with an electron identified in the final state. This sensitive mass measurement is performed using a template method and accurate Monte Carlo modeling is critical. A sample of $Z$ boson events is used for calibration and the analysis is blinded. Analysis methodology and status will be discussed. [Preview Abstract] |
Sunday, April 6, 2014 11:57AM - 12:09PM |
J13.00007: Measurement of the $W^{+}W^{-}$Production Cross Section in Proton-Proton Collisions at $\sqrt s =$ 8 TeV with the ATLAS Detector Haolu Feng We report a measurement of the $W^{+}W^{-}$ production cross section in pp collisions at $\sqrt s = 8$ TeV. The $W^{+}W^{-}$ leptonic decay channels are analyzed using data corresponding to ${20.3\thinspace fb}^{-1}$ of integrated luminosity collected by the ATLAS detector in 2012 at the CERN Large Hadron Collider. The cross-section results will be presented along with limits on Anomalous Triple-Gauge-Boson Couplings. [Preview Abstract] |
Sunday, April 6, 2014 12:09PM - 12:21PM |
J13.00008: Probe of WW production in vector boson fusion topology Ajay Kumar Measurement of WW production rate in vector boson fusion topology is presented using the semileptonic final state from diboson decay. This analysis is a benchmark for future studies of WW scattering at high energies. The analysis is performed using a data sample corresponding to an integrated luminosity of 20/fb at 8 TeV proton-proton collision energies recorded by the CMS experiment at the Large Hadron Collider. [Preview Abstract] |
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