Strong CP Problem with 10^{32} Standard Model Copies

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dc.creatorDvali, Gia
dc.creatorFarrar, Glennys R.
dc.date2007-12-19
dc.date.accessioned2026-07-07T11:39:32Z
dc.date.available2026-07-07T11:39:32Z
dc.descriptionWe show that a recently proposed solution to the Hierarchy Problem simultaneously solves the Strong CP Problem, without requiring an axion or any further new physics. Consistency of black hole physics implies a non-trivial relation between the number of particle species and particle masses, so that with ~10^{32} copies of the standard model, the TeV scale is naturally explained. At the same time, as shown here, this setup predicts a typical expected value of the strong-CP parameter in QCD of theta ~ 10^{-9}. This strongly motivates a more sensitive measurement of the neutron electric dipole moment.
dc.description8 pp
dc.identifierhttps://arxiv.org/abs/0712.3170
dc.identifierhttp://arxiv.org/abs/0712.3170
dc.identifierPhys.Rev.Lett.101:011801,2008
dc.identifierdoi:10.1103/PhysRevLett.101.011801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199953
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleStrong CP Problem with 10^{32} Standard Model Copies
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