8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

Improving the Top Quark Forward-Backward Asymmetry Measurement at the LHC

11 Aug 2011, 11:10
20m
553 (Rhode Island Convention Center)

553

Rhode Island Convention Center

Parallel contribution Top Quark Physics Top Quark Physics

Speaker

Zhenyu Han (Harvard University)

Description

We explore methods for improving the top quark forward-backward asymmetry measurement at the LHC. We identify variables which distinguish top pairs produced from gluons versus quarks. These variables include the top quark rapidity, mass and rapidity of the top-antitop system, the top quark polarization and the top-antitop spin correlation. We obtain the best axes for measuring the top quark polarization and the top-antitop spin correlation. We apply our methods on two representative models: the axigluon model and the W-prime model, and show that significant improvements on the top quark forward-backward asymmetry measurement at the LHC can be achieved.

Primary authors

Thomas Rizzo (SLAC) Yang Bai (SLAC) Zhenyu Han (Harvard University)

Presentation Materials