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PreprintCC BY 4.0arXiv

Agnostic search for a vector-like top partner at a lepton collider via the recoil mass technique

  • Higinio Valle
  • Cristina Oropeza Barrera
  • Oscar Ochoa-Valeriano
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Abstract

A study of the single production of a vector-like top partner T at a √s=3 TeV e+e− collider is presented, using a decay-mode and mass-agnostic event selection built around the recoil mass observable. The analysis relies on fully simulated samples processed through a common reconstruction and event selection chain. The baseline selection is validated without beam polarization or initial-state radiation (ISR). The impact of more realistic running conditions, including ISR together with an e− beam polarization of −80%, is then evaluated and the discovery reach is mapped as a function of the top partner mass mT and coupling strength κT. In the baseline scan, the estimated statistical significance rises above 3σ for the lowest benchmark masses once κT exceeds approximately 0.3.

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Cite

BibTeXRIS
BibTeX
@misc{valle2026agnostic,
  title = {{Agnostic search for a vector-like top partner at a lepton collider via the recoil mass technique}},
  author = {Higinio Valle and Cristina Oropeza Barrera and Oscar Ochoa-Valeriano},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.05689},
  eprint = {2609.05689},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.05689},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Agnostic search for a vector-like top partner at a lepton collider via the recoil mass technique
AU  - Higinio Valle
AU  - Cristina Oropeza Barrera
AU  - Oscar Ochoa-Valeriano
PY  - 2026
DA  - 2026/09/04
PB  - arXiv
DO  - 10.48550/arxiv.2609.05689
UR  - https://arxiv.org/abs/2609.05689
AB  - A study of the single production of a vector-like top partner T at a √s=3 TeV e^+e^− collider is presented, using a decay-mode and mass-agnostic event selection built around the recoil mass observable. The analysis relies on fully simulated samples processed through a common reconstruction and event selection chain. The baseline selection is validated without beam polarization or initial-state radiation (ISR). The impact of more realistic running conditions, including ISR together with an e^− beam polarization of −80%, is then evaluated and the discovery reach is mapped as a function of the top partner mass m_T and coupling strength κ_T. In the baseline scan, the estimated statistical significance rises above 3σ for the lowest benchmark masses once κ_T exceeds approximately 0.3.
ER  -