Top polarization as a probe of new physics

Godbole, Rohini M and Rindani, Saurabh D and Rao, Kumar and Singh, Ritesh K (2009) Top polarization as a probe of new physics. In: 17th International Conference on Supersymmetry and the Unification of Fundamental Interactions, JUN 05-10, 2009, Boston, pp. 682-685.

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Abstract

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 reconstruct the top polarization. Some sensitivity is found for the new couplings of the top.

Item Type:	Conference Paper
Series.:	AIP Conference Proceedings
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Keywords:	Top Polarization; Anomalous top couplings; Z ` resonance
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited:	04 Nov 2010 11:35
Last Modified:	04 Nov 2010 11:35
URI:	http://eprints.iisc.ac.in/id/eprint/33572

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