Does the 220 PeV Event at KM3NeT Point to New Physics?
Oklahoma State University Oklahoma City
Abstract
The KM3NeT collaboration recently reported the observation of KM3-230213A, a neutrino event with an energy exceeding 100 PeV, more than an order of magnitude higher than the most energetic neutrino in IceCube's catalog. Given its longer data-taking period and larger effective area relative to KM3NeT, IceCube should have observed events around that energy. This tension has recently been quantified to lie between 2σ and 3.5σ, depending on the neutrino source. A O(100) PeV neutrino detected at KM3NeT has traversed approximately 147 km of rock and sea en route to the detector, whereas neutrinos arriving from the same location in the sky would have only traveled through about 14 km of ice before reaching IceCube.…
Citation impact
- FWCI
- 59.07
- Percentile
- 99%
- References
- 45
Authors
2- VBVedran BrdarCorresponding
Oklahoma State University Oklahoma City
- DSDibya S. Chattopadhyay
Oklahoma State University Oklahoma City
Topics & keywords
- Neutrino
- Event (particle physics)
- Measurements of neutrino speed
- Flux (metallurgy)
- Neutrino oscillation
- Sky
- Neutrino detector