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SO(10) grand unification in light of recent LHC searches and colored scalars at the TeV-scale
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
2016 (English)In: International Journal of Modern Physics A, ISSN 0217-751X, E-ISSN 1793-656X, Vol. 31, no 8, 1650034Article in journal (Refereed) PublishedText
Abstract [en]

We analyze the compatibility of the recent LHC signals and the TeV-scale left right model(s) in the minimal nonsupersymmetric SO(10) framework. We show that the models in which the Higgs content is selected based on the extended survival hypothesis do not allow the W-R boson to be at the TeV-scale. By relaxing this conjecture, we investigate various scenarios where a number of colored-scalars, originated from various Pati-Salam multiplets, are light and whence they survive down to the low energies. Performing a detailed renormalization group analysis with various low-energy Higgs configurations and symmetry breaking chains, while keeping the high energy Higgs content unmodified; we find that, among a number of possibilities, the models which have a light color-triplet scalar, and its combination with a light color-sextet, particularly stand out. Although these models do allow a TeV-scale W-R boson, generating the required value of the gauge coupling g(R) at this scale is nontrivial.

Place, publisher, year, edition, pages
2016. Vol. 31, no 8, 1650034
Keyword [en]
LHC, SO(10) grand unification, Pati-Salam, diboson excess, left-right model, colored scalars, renormalization group analysis
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-286657DOI: 10.1142/S0217751X16500342ISI: 000372781100007OAI: oai:DiVA.org:uu-286657DiVA: diva2:923700
Funder
Swedish Research Council, 621-2011-5107
Available from: 2016-04-27 Created: 2016-04-21 Last updated: 2016-04-27Bibliographically approved

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Aydemir, Ufuk
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High Energy Physics
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