General Estimate for the Graviton Lifetime

Abstract

By means of general kinematical arguments, the lifetime $\tau$ of a graviton of energy $E$ for decay into gravitons is found to have the form ${\tau }^{-1}=\frac{1}{EG}{\sum }_{j=1,2,...}{c}_j(\Lambda G{)}^j$. Some recent, preliminary results of non perturbative simplicial quantum gravity are then employed to estimate the effective values of $G$ and $\Lambda G$. It turns out that a short lifetime of the graviton cannot be excluded.

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References in corpus (1)

• Vanishing of the Cosmological Constant in Stabilized Quantum Gravity

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