Polarization of top quark in vector-like quark decay
arXiv:1901.02300 · doi:10.1016/j.physletb.2019.02.016
Abstract
Vector-like quarks (VLQs) are attractive extensions to the Standard Model. They mix with the SM quarks and can lead to rich phenomenology. Determination of VLQ's interaction structure with the SM is then an important issue, which can be inferred from the decay products of VLQs, such as top quark. We calculate the spin-analyzing powers for charged leptons from top quark in VLQ decay for various VLQ scenarios. We find that the top polarization effect will be helpful to distinguish different natures of the VLQ couplings with the SM.
13 pages, 2 figures. Discussions and references added, version accepted by PLB
References in corpus (10)
- Light custodians in natural composite Higgs models
- Higgs Boson Mass, Sparticle Spectrum and Little Hierarchy Problem in Extended MSSM
- Search for New Physics via Single Top Production at the LHC
- Top Quark Pairs at High Invariant Mass - A Model-Independent Discriminator of New Physics at the LHC
- Heavy Quarks Above the Top at the Tevatron
- Scalar Dark Matter Effects in Higgs and Top Quark Decays
- Chiral Couplings of W' and Top Quark Polarization at the LHC
- Top quark spin correlations in the Randall-Sundrum model at the CERN Large Hadron Collider
- Constraining Top partner and Naturalness at the LHC and TLEP
- Impact of Single-Top Measurement to Littlest Higgs Model with T-Parity