Radiation zeros and gravity |
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Authors: | Giampiero Passarino |
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Affiliation: | 1. Insituto di Fisica Teorica, Università di Torino, Italy;2. INFN, Sezione di Torino, Italy |
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Abstract: | The existence of spin independent zeros in every tree approximated radiation amplitude in gauge theories is examined when quantum gravity is included. Using a direct evaluation of the relevant transition amplitudes a series of results is proven. They are mostly negative showing that there is no general mechanism of cancellation when quantum gravity is present. The question of gravitational radiation zeros is also addressed and their absence is inferred. |
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