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V-completion by classicalization

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dc.contributor.author Dvali, G en
dc.contributor.author Giudice, GF en
dc.contributor.author Gomez, C en
dc.contributor.author Kehagias, A en
dc.date.accessioned 2014-03-01T01:37:31Z
dc.date.available 2014-03-01T01:37:31Z
dc.date.issued 2011 en
dc.identifier.issn 1126-6708 en
dc.identifier.uri http://hdl.handle.net/123456789/21540
dc.subject Phenomenological Models en
dc.subject.classification Physics, Particles & Fields en
dc.subject.other ENERGY SUPERSTRING COLLISIONS en
dc.subject.other STRING THEORY en
dc.subject.other GRAVITATION en
dc.subject.other MILLIMETER en
dc.subject.other DIMENSIONS en
dc.subject.other SPACETIME en
dc.subject.other MASS en
dc.title V-completion by classicalization en
heal.type journalArticle en
heal.identifier.primary 10.1007/JHEP08(2011)108 en
heal.identifier.secondary http://dx.doi.org/10.1007/JHEP08(2011)108 en
heal.identifier.secondary 108 en
heal.language English en
heal.publicationDate 2011 en
heal.abstract We suggest a novel approach to UV-completion of a class of non-renormalizable theories, according to which the high-energy scattering amplitudes get unitarized by production of extended classical objects (classicalons), playing a role analogous to black holes, in the case of non-gravitational theories. The key property of classicalization is the existence of a classicalizer field that couples to energy-momentum sources. Such localized sources are excited in high-energy scattering processes and lead to the formation of classicalons. Two kinds of natural classicalizers are Nambu-Goldstone bosons (or, equivalently, longitudinal polarizations of massive gauge fields) and scalars coupled to energy-momentum type sources. Classicalization has interesting phenomenological applications for the UVcompletion of the StandardModel both with or without the Higgs. In the Higgless Standard Model the high-energy scattering amplitudes of longitudinal W-bosons self-unitarize via classicalization, without the help of any new weakly-coupled physics. Alternatively, in the presence of a Higgs boson, classicalization could explain the stabilization of the hierarchy. In both scenarios the high-energy scatterings are dominated by the formation of classicalons, which subsequently decay into many particle states. The experimental signatures at the LHC are quite distinctive, with sharp differences in the two cases. © 2011 SISSA. en
heal.publisher SPRINGER en
heal.journalName Journal of High Energy Physics en
dc.identifier.doi 10.1007/JHEP08(2011)108 en
dc.identifier.isi ISI:000294901200053 en
dc.identifier.volume 2011 en
dc.identifier.issue 8 en


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