2014/04/30 by Natascia Vignaroli · 28 citations
Physics and Astronomy · #Fermion #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.89.095027
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 89(9) (American Physical Society) · 25 pp. v2: minor changes, references added, version to appear in Phys. Rev. D
arxiv created 2014/05/14 · openalex publication_date 2014/05/28 · arxiv updated 2014/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We study the W^\ensuremath' phenomenology in composite Higgs/Warped extra-dimensional models focusing on the effect of fermionic resonances at \ensuremath∼1 TeV. After deriving the existing bounds from the current LHC-8 analyses, we highlight the most promising signatures for W^\ensuremath' discovery at the 14 TeV LHC. We find in particular very promising the study of W^\ensuremath' decay modes into vectorlike top partners, specifically the decay into a doublet of custodian heavy fermions, T5/3T2/3, and the decay into a heavy fermion plus a Standard Model quark. We perform a detailed parton-level analysis of the channel W^\ensuremath'\ensuremath→T5/3T2/3 in the same-sign dilepton final state, finding that it is a very promising signature to test the region at high W^\ensuremath' mass, m_W^\ensuremath'\ensuremath\gtrsim2 TeV, and of the W^\ensuremath'\ensuremath→Tb mode, which is one of the best channels to test the intermediate W^\ensuremath' mass region and that, already with the LHC-8 data, could extend the present exclusion bounds.