Ultra-high-energy nuclei, photons, and magnetic fields
نویسندگان
چکیده
منابع مشابه
Cosmogenic Neutrinos from Ultra-high Energy Nuclei
We calculate the flux of neutrinos generated by the propagation of ultra-high energy iron over cosmological distances and show that even if ultra-high energy cosmic rays are composed of heavy nuclei, a significant flux of high-energy neutrinos should be present throughout the universe. The resulting neutrino flux has a new peak at ∼ 10 14 eV generated by neutron decay and reproduces the double ...
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متن کاملIdentification of Photons in Ultra-High Energy Cosmic Rays
The possibility of discerning extensive air showers initiated by ultra-high energy (UHE) photons from those induced by hadrons is studied. Two effects characteristic only for UHE photons are taken into account: LPM effect and photon conversion/cascading in the geomagnetic field. First conclusions about the possibility of identification of photons in the UHE cosmic-ray spectrum are presented and...
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We present a calculation of nuclei propagation with energies above 1018 eV in the intergalactic photon field. The calculation is based on a Monte Carlo approach for the nucleus-photon interaction as well as the intergalactic magnetic field. We then assume that the Ultra-High Energy Cosmic Rays (UHECR) are nuclei which are emitted from extra-galactic point sources. Four bumps are found in the en...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2011
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2011.03.026