A naturally light dilaton

Abstract

Goldstone's theorem does not apply straightforwardly to the case of spontaneously broken scale invariance. We elucidate under what conditions a light scalar degree of freedom, identifiable with the dilaton, can naturally arise. Our construction can be considered an explicit dynamical solution to the cosmological constant problem in the scalar version of gravity.

v2: published version

References in corpus (4)

• Light scalar at LHC: the Higgs or the dilaton?
• Spontaneous Breaking of Conformal Invariance and Trace Anomaly Matching
• A Very Light Dilaton
• Gravity's Scalar Cousin

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