Probing R-parity Violating Interactions from Top Quark Polarization at LHC

Details Probing R-parity Violating Interactions from Top Quark Polarization at LHC Probing R-parity Violating Interactions from Top Quark Polarization at LHC

2006-08-20

arxiv.org/abs/hep-ph/0608223v2

Eur.Phys.J.C51:163-168,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

more comments added (7 pages, 5 figs)

Scientific paper

10.1140/epjc/s10052-007-0290-y

In minimal supersymmetric standard model the R-parity violating interactions can induce anomalous top pair productions at the LHC through the t-channel process d_R \bar d_R -> t_L \bar t_L by exchanging a slepton or u-channel process d_R \bar d_R -> t_R \bar t_R by exchanging a squark. Such top pair productions with certain chirality cause top quark polarization in the top pair events. We found that at the LHC, due to the large statistics, the statistical significance of the polarization observable and thus the probing ability for the corresponding R-parity violating couplings are much higher than at the Tevatron upgrade.

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