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PreprintCC BY 4.0arXiv

Search for high-energy neutrinos from Einstein Probe detected Fast X-ray Transients using 14 years of IceCube muon track data

  • Sri Devaki Meduri
  • Shantanu Desai
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Abstract

We perform a time-integrated search for high energy neutrinos from 27 fast X-ray transients (FXTs) detected by Einstein Probe, using 14 years of publicly available IceCube muon-track data. We employ the unbinned maximum likelihood method which is used for IceCube point source searches. We do not find any statistically significant excess from any of the FXTs. The largest TS value is obtained for EP240801a (TS=4.77), corresponding to a local p-value of 0.04, which is not significant. We therefore calculate 90\% confidence level upper limit on the differential muon neutrino flux. The most stringent upper limit is obtained for EP241021a, with E2 Φ(E)=2.1× 10−10 (GeV cm−2 s−1), for a E−2 spectrum at a pivot energy of 100 TeV.

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Cite

BibTeXRIS
BibTeX
@misc{meduri2026search,
  title = {{Search for high-energy neutrinos from Einstein Probe detected Fast X-ray Transients using 14 years of IceCube muon track data}},
  author = {Sri Devaki Meduri and Shantanu Desai},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.30722},
  eprint = {2610.30722},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.30722},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Search for high-energy neutrinos from Einstein Probe detected Fast X-ray Transients using 14 years of IceCube muon track data
AU  - Sri Devaki Meduri
AU  - Shantanu Desai
PY  - 2026
DA  - 2026/10/22
PB  - arXiv
DO  - 10.48550/arxiv.2610.30722
UR  - https://arxiv.org/abs/2610.30722
AB  - We perform a time-integrated search for high energy neutrinos from 27 fast X-ray transients (FXTs) detected by Einstein Probe, using 14 years of publicly available IceCube muon-track data. We employ the unbinned maximum likelihood method which is used for IceCube point source searches. We do not find any statistically significant excess from any of the FXTs. The largest TS value is obtained for EP240801a (TS=4.77), corresponding to a local p-value of 0.04, which is not significant. We therefore calculate 90\% confidence level upper limit on the differential muon neutrino flux. The most stringent upper limit is obtained for EP241021a, with E^2 Φ(E)=2.1× 10^−10 (GeV cm^−2 s^−1), for a E^−2 spectrum at a pivot energy of 100 TeV.
ER  -