Dark photon from light scalar boson decays at FASER

T. Araki, K. Asai, H. Otono, T. Shimomura, Y. Takubo

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


FASER is one of the promising experiments which search for long-lived particles beyond the Standard Model. In this paper, we focus on dark photon associating with an additional U(1) gauge symmetry, and also a scalar boson breaking this U(1) gauge symmetry. We study the sensitivity to the dark photon originated from U(1)-breaking scalar decays. We find that a sizable number of dark photon signatures can be expected in wider parameter space than previous studies.

Original languageEnglish
Article number72
JournalJournal of High Energy Physics
Issue number3
Publication statusPublished - Mar 2021

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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