Combined significance of spatial coincidence of high energy neutrinos from PSR B1509-58 by Super-Kamiokande and MACRO
arXiv:2202.12493 · doi:10.1088/1475-7516/2022/08/001
Abstract
In their searches for astrophysical point sources of high energy neutrinos, both the Super-Kamiokande and MACRO neutrino detectors saw the largest angular excess from the same source, viz. PSR B1509-58. We estimate the probability for the observed number of events by {\it both} Super-Kamiokande and MACRO to be a chance coincidence due to atmospheric neutrino background. We find that this probability is about 0.4%, corresponding to 2.6 significance. We also propose some additional tests to ascertain if this excess corresponds to an astrophysical signal or is only a background event.
arXiv comment5 pages
References in corpus (26)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- The ATNF Pulsar Catalogue
- Asymptotic formulae for likelihood-based tests of new physics
- Neutrino Physics with JUNO
- Design Concepts for the Cherenkov Telescope Array
- The international pulsar timing array project: using pulsars as a gravitational wave detector
- Time-integrated Neutrino Source Searches with 10 years of IceCube Data
- Search for Dark Matter WIMPs using Upward Through-going Muons in Super-Kamiokande
- Optical Interferometry in Astronomy
- Physics Potential of the ICAL detector at the India-based Neutrino Observatory (INO)
- Search for Cosmic Neutrino Point Sources with Four Years of Data from the ANTARES Telescope
- Neutrino astronomy with the MACRO detector
- PINGU: A Vision for Neutrino and Particle Physics at the South Pole
- Study of TeV Neutrinos with Upward Showering Muons in Super-Kamiokande
- Search for neutrinos from Gamma-Ray Bursts using Super-Kamiokande
- The Observation of Up-going Charged Particles Produced by High Energy Muons in Underground Detectors
- Search for Astrophysical Neutrino Point Sources at Super-Kamiokande
- TeV mu Neutrinos from Young Neutron Stars
- High energy neutrino astronomy using upward-going muons in Super-Kamiokande-I
- Search for Diffuse Astrophysical Neutrino Flux Using Ultra-High-Energy Upward-Going Muons in Super-Kamiokande I
- High-energy neutrino astronomy and the Baikal-GVD neutrino telescope
- Evidence of High-Energy Neutrinos from SN1987A by Kamiokande-II and IMB
- Search for an excess of events in the Super-Kamiokande detector in the directions of the astrophysical neutrinos reported by the IceCube Collaboration
- High Energy Neutrino Astrophysics