Spontaneous Violation of Lorentz Invariance and Ultra-High Energy Cosmic Rays
نویسنده
چکیده
We propose that local Lorentz invariance is spontaneously violated at high energies, due to a nonvanishing vacuum expectation value of a vector field φμ, as a possible explanation of the observation of ultra-high energy cosmic rays with an energy above the GZK cutoff. Certain consequences of spontaneous breaking of Lorentz invariance in cosmology are discussed.
منابع مشابه
Do we observe ultra high energy cosmic rays above the Greisen - Zatsepin - Kuzmin cutoff due to violation of Lorentz invariance ?
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