Open AccessProbing R-parity violating interactions from top quark polarization at LHC
Author(s) -
G. R. Lu,
Xiang Li,
Peiying Li
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.778
Subject(s) - physics , particle physics , tevatron , large hadron collider , top quark , r parity , parity (physics) , observable , polarization (electrochemistry) , pair production , physics beyond the standard model , nuclear physics , supersymmetry , quantum mechanics , chemistry
In minimal supersymmetric standard model, the R-parity violating interactions can induce anomalous top pair productions at the LHC through the t-channel process dRdR→tLtL by exchanging a slepton or the u-channel process dRdR→tRtR 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.