Degravitation of the Cosmological Constant and Graviton Width

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dc.creatorDvali, Gia
dc.creatorHofmann, Stefan
dc.creatorKhoury, Justin
dc.date2007-03-05
dc.date.accessioned2026-07-07T11:59:42Z
dc.date.available2026-07-07T11:59:42Z
dc.descriptionWe study the possibility of decoupling gravity from the vacuum energy. This is effectively equivalent to promoting Newton's constant to a high-pass filter that degravitates sources of characteristic wavelength larger than a certain macroscopic (super) horizon scale L. We study the underlying physics and the consistency of this phenomenon. In particular, the absence of ghosts, already at the linear level, implies that in any such theory the graviton should either have a mass 1/L, or be a resonance of similar width. This has profound physical implications for the degravitation idea.
dc.description49 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/hep-th/0703027
dc.identifierhttp://arxiv.org/abs/hep-th/0703027
dc.identifierPhys.Rev.D76:084006,2007
dc.identifierdoi:10.1103/PhysRevD.76.084006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206654
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDegravitation of the Cosmological Constant and Graviton Width
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