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arXiv · hep-th/0407196

A Comment on the Cosmological Constant Problem in Spontaneously Broken Supergravity

A. Hebecker
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Abstract

In spontaneously broken supergravity with non-flat potential the vanishing of the cosmological constant is usually associated with a non-trivial balancing of two opposite-sign contributions. We make the simple observation that, in an appropriately defined expansion of the superfield action in inverse powers of $M_P$, this tuning corresponds to the absence of two specific operators. It is then tempting to speculate what kind of non-standard symmetry or structural principle might underlie the observed extreme smallness of the corresponding coefficients in the real world. Independently of such speculations, the suggested expansion appears to be a particularly simple and convenient starting point for the effective field theory analysis of spontaneously broken supergravity models.

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A. Hebecker. 2004-07-22. A Comment on the Cosmological Constant Problem in Spontaneously Broken Supergravity. https://doi.org/10.1016/j.physletb.2004.09.054

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