Top polarization as a probe of new physics

Details Top polarization as a probe of new physics Top polarization as a probe of new physics

2009-11-18

arxiv.org/abs/0911.3622v2

AIP Conf.Proc.1200:682-685,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures (slightly modified), fixed typos, added acknowledgement

Scientific paper

10.1063/1.3327703

We investigate the effects of new physics scenarios containing a high mass vector resonance on top pair production at the LHC, using the polarization of the produced top. In particular we use kinematic distributions of the secondary lepton coming from top decay, which depends on top polarization, as it has been shown that the angular distribution of the decay lepton is insensitive to the anomalous tbW vertex and hence is a pure probe of new physics in top quark production. Spin sensitive variables involving the decay lepton are used to probe top polarization. Some sensitivity is found for the new couplings of the top.

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