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PreprintCC BY 4.0arXiv

Sgoldstino Phenomenology at SND@HL-LHC

  • D. Kalashnikov
  • E. K. Karkaryan
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Abstract

We study the phenomenology of light scalar sgoldstinos, with masses from the dimuon threshold up to a few GeV, focusing on their production and detection prospects at the SND@HL-LHC experiment. We review the effective sgoldstino interactions with Standard Model particles, the dominant meson-decay production channels, and the relevant experimental constraints on the model parameter space. We also outline the recently proposed SND@HL-LHC detector configuration and discuss the kinematics and track separation of the muon pair produced in sgoldstino decays inside the detector volume. For two representative sets of supersymmetry-breaking parameters, we present sensitivity estimates and show that the muon-antimuon separation efficiency should be taken into account in searches for the dimuon signal.

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Cite

BibTeXRIS
BibTeX
@misc{kalashnikov2026sgoldstino,
  title = {{Sgoldstino Phenomenology at SND@HL-LHC}},
  author = {D. Kalashnikov and E. K. Karkaryan},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2607.29656},
  eprint = {2607.29656},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.29656},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Sgoldstino Phenomenology at SND@HL-LHC
AU  - D. Kalashnikov
AU  - E. K. Karkaryan
PY  - 2026
DA  - 2026/09/01
PB  - arXiv
DO  - 10.48550/arxiv.2607.29656
UR  - https://arxiv.org/abs/2607.29656
AB  - We study the phenomenology of light scalar sgoldstinos, with masses from the dimuon threshold up to a few GeV, focusing on their production and detection prospects at the SND@HL-LHC experiment. We review the effective sgoldstino interactions with Standard Model particles, the dominant meson-decay production channels, and the relevant experimental constraints on the model parameter space. We also outline the recently proposed SND@HL-LHC detector configuration and discuss the kinematics and track separation of the muon pair produced in sgoldstino decays inside the detector volume. For two representative sets of supersymmetry-breaking parameters, we present sensitivity estimates and show that the muon-antimuon separation efficiency should be taken into account in searches for the dimuon signal.
ER  -