AP2 - Neutrino Physics Astrophysics and Cosmology |
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Speaker |
Mathews, Grant |
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Co-autors |
T. Kajino, K. Kojima, T. Yoshida, M. Famiano |
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Talk Title |
Ultra High-Energy Neutrinos via Heavy-Meson Synchrotron Emission |
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Abstract |
We propose that the acceleration of ultra-relativistic protons and nuclei in the presence of strong magnetic fields (H ~10^15 G) in such environments as AGNs, Magnetars, or GRB central engines could be a viable site for strong meson synchrotron emission. We show that charged scalar mesons like pi+_, vector mesons like the rho, and even heavier mesons like D_S, J/Psi and Upsilon, could be emitted with high intensity (~10^3 times the photon intensity) through strong couplings to ultra-relativistic nucleons. These processes for meson synchrotron emission would eventually produce a burst of three flavors of ultra high-energy cosmic neutrinos with $ E_nu >10^12 eV. We evaluate the spectra of the mu- and tau-neutrinos, which might be produced by the decay of massive mesons like the Upsilon. We also estimate the event rate in energetic neutrino detectors and show that a nearby event might be detectable. |
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