2022
DOI: 10.3390/universe8110560
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Observe Gamma-Rays and Neutrinos Associated with Ultra-High Energy Cosmic Rays

Abstract: IceCube measures a diffuse neutrino flux comparable to the Waxman-Bahcall bound, which suggests the possibility that the ultra-high energy cosmic rays (UHECRs) have a common origin with diffuse high energy neutrinos. We propose high energy gamma-ray and/or neutrino observations toward the arrival directions of UHECRs to search for the sources and test this possibility. We calculate the detection probability of gamma-ray/neutrino sources, and find that the average probability per UHECR of >10 EeV is ∼10% if … Show more

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Cited by 1 publication
(4 citation statements)
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“…In ref [6] we had calculated the probability to detect gamma-ray sources in the directions of observed UHECRs as function of source number density, assuming a common origin of UHECRs and TeV diffuse neutrinos. UHECRs may escape quickly from their source environment, e.g., the host galaxy, due to their high rigidity, while lower energy CRs propagate in the host galaxy for longer time, and all of their energy is depleted in 𝑝 𝑝 interactions with interstellar medium (ISM).…”
Section: Theoretical Prediction Of Detectionmentioning
confidence: 99%
See 3 more Smart Citations
“…In ref [6] we had calculated the probability to detect gamma-ray sources in the directions of observed UHECRs as function of source number density, assuming a common origin of UHECRs and TeV diffuse neutrinos. UHECRs may escape quickly from their source environment, e.g., the host galaxy, due to their high rigidity, while lower energy CRs propagate in the host galaxy for longer time, and all of their energy is depleted in 𝑝 𝑝 interactions with interstellar medium (ISM).…”
Section: Theoretical Prediction Of Detectionmentioning
confidence: 99%
“…We have considered the spatial and temporal associations between UHECRs and gamma-ray or neutrino sources in [6]. For UHECR protons with energy 𝐸 ∼ 100 EeV, the deflection by magnetic field during propagation is smaller than 𝜃 ∼ 2 • for sources within 𝑑 ∼ 100 Mpc.…”
Section: Theoretical Prediction Of Detectionmentioning
confidence: 99%
See 2 more Smart Citations