Yukawa Corrections to gamma gamma --> b\bar{b} in the Topcolor Assisted Technicolor Models

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dc.creatorHuang, Jin-Shu
dc.creatorLu, Gong-Ru
dc.date2008-09-18
dc.date2008-10-31
dc.date.accessioned2026-07-07T10:16:18Z
dc.date.available2026-07-07T10:16:18Z
dc.descriptionWe study the Yukawa corrections to the gamma gamma --> b\bar{b} corss section in the topcolor assisted technicolor models at the photon-photon colliders. We find that, for the favorable parameters, the relative corrections from pseudo Goldstone bosons give out a 3.2%--5.9% decrement of the cross section from the tree level when \sqrt{s}=500 GeV, the contributions from new extended technicolor gauge bosons Z* and colored gauge bosons B are negligibly small, and the relative correction arising from new color-singlet heavy gauge boson Z' is less than -3.2%. Therefore, the total relative corrections are significantly larger than the corresponding corrections in the standard model, the general two Higgs doublet model and the minimal supersymmetric standard model. Since these corrections are obvious for the International Linear Colliders, the process gamma gamma --> b\bar{b} is really interesting in testing the standard model and searching for the signs of technicolor.
dc.description24 pages, 6 figures, version appeared in PRD
dc.identifierhttps://arxiv.org/abs/0809.3054
dc.identifierhttp://arxiv.org/abs/0809.3054
dc.identifierPhys.Rev.D78:035007,2008
dc.identifierdoi:10.1103/PhysRevD.78.035007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173461
dc.subjectHigh Energy Physics - Phenomenology
dc.titleYukawa Corrections to gamma gamma --> b\bar{b} in the Topcolor Assisted Technicolor Models
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