A naturally light dilaton

作者:Coradeschi Francesco*; Lodone Paolo; Pappadopulo Duccio; Rattazzi Riccardo; Vitale Lorenzo
来源:The Journal of High Energy Physics, 2013, 2013(11): 057.
DOI:10.1007/JHEP11(2013)057

摘要

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.

  • 出版日期2013-11-7