Unparticle physics at the photon collider

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dc.contributor.authorKikuchi, Tatsuru
dc.contributor.authorOkada, Nobuchika
dc.contributor.authorTakeuchi, Michihisa
dc.contributor.otherHigh Energy Accelerator Research Organization (KEK)
dc.contributor.otherGraduate University for Advanced Studies - Japan
dc.contributor.otherKyoto University
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2019-05-20T19:23:34Z
dc.date.available2019-05-20T19:23:34Z
dc.date.copyright2008
dc.date.issued2008-05-19
dc.description.abstractRecently, 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 ->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.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationKikuchi, T., Okada, N., Takeuchi, M. (2008): Unparticle Physics at the Photon Collider. Physical Review D, 77(9). DOI: https://doi.org/10.1103/PhysRevD.77.094012
dc.identifier.doi10.1103/PhysRevD.77.094012
dc.identifier.issn1550-7998
dc.identifier.orcidhttps://orcid.org/0000-0001-9022-7441
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5596
dc.languageEnglish
dc.language.isoen_US
dc.publisherAmerican Physical Society
dc.rights.holderAmerican Physical Society
dc.subjectGAMMA-GAMMA
dc.subjectBEAMS
dc.subjectCONSTRAINTS
dc.subjectSCATTERING
dc.subjectVIOLATION
dc.subjectAstronomy & Astrophysics
dc.subjectPhysics, Particles & Fields
dc.subjectPhysics
dc.subject.lcshParticles (Nuclear physics)
dc.titleUnparticle physics at the photon collideren_US
dc.typetext
dc.typeArticle
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