Göttingen 2012 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 32: Top-Quark: Produktion 1

T 32.2: Vortrag

Montag, 27. Februar 2012, 17:00–17:15, ZHG 104

Simultaneous Top Pair Production Cross Section and W Heavy Flavor Fraction Measurement — Anna Henrichs, •Adam Roe, Arnulf Quadt, and Elizaveta Shabalina — II. Physikalisches Institut, Georg-August-Universität Göttingen

A measurement of the tt production cross section with a simultaneous measurement of the W heavy flavor fractions is performed in the l+jets channel at √s = 7 TeV using a profile likelihood fit to a single flavor-sensitive variable with the summer 2011 dataset taken by the ATLAS detector, corresponding to an integrated luminosity of 0.7 fb⁻¹. The input and method, including evaluation of uncertainties, are described.