Unparticle physics at the photon collider

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dc.creatorKikuchi, Tatsuru
dc.creatorOkada, Nobuchika
dc.creatorTakeuchi, Michihisa
dc.date2007-12-29
dc.date2008-04-03
dc.date.accessioned2026-07-07T11:39:44Z
dc.date.available2026-07-07T11:39:44Z
dc.descriptionRecently, a conceptually new physics beyond the Standard Model (SM), unparticle, has been proposed, where a hidden conformal sector is coupled to the SM sector through higher dimensional operators. In this setup, we investigate unparticle physics at the photon collider, in particular, unparticle effects on the gamma gamma to gamma gamma process. Since this process occurs at loop level in the SM, the unparticle effects can be significant even if the cutoff scale is very high. In fact, we find that the unparticle effects cause sizable deviations from the SM results. The scaling dimension of the unparticle d_U reflects the dependence of the cross section on the final state photon invariant mass, so that precision measurements of this dependence may reveal the scaling dimension of the unparticle.
dc.description29 pages, 16 figures; version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0801.0018
dc.identifierhttp://arxiv.org/abs/0801.0018
dc.identifierPhys.Rev.D77:094012,2008
dc.identifierdoi:10.1103/PhysRevD.77.094012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200027
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleUnparticle physics at the photon collider
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