409 citations · 1.7k across the 50 of their papers we have counts for
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astro-ph2001★ 70 cited
Ultra-High Energy Cosmic Rays: A Probe of Physics and Astrophysics at Extreme Energies
Guenter Sigl
The origin of cosmic rays is one of the major unresolved questions in astrophysics. In particular, the highest energy cosmic rays observed possess macroscopic energies and their or…
astro-ph1995★ 32 cited
Weak Interactions in Supernova Cores and Saturation of Nucleon Spin Fluctuations
Guenter Sigl
Extrapolation of perturbative nucleon spin fluctuation rates seems to suggest a strong suppression of weak interactions in supernova cores. We derive a new sum rule for the dynamic…