@article{toanswerortoabstainmitigatingsearchagent,
  title = {To Answer or to Abstain: Mitigating Search-Agent Hallucinations via Abstention-Aware Reinforcement Learning},
  author = {Fengji Zhang and Tianyu Fan and Yuxiang Zheng and Xinyao Niu and Chengen Huang and Jacky Keung and Bei Chen},
  year = {2026},
  eprint = {2607.10738},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.10738},
}