Doršner, I. (2012) Colored scalars as flavor messengers in grand unified theories. Il nuovo cimento C, 35 (6). pp. 361-369. ISSN 1826-9885
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Abstract
We critically review the proton decay due to the scalar leptoquark exchanges within SU(5) and flipped SU(5) frameworks to address the issue of the model dependence of the relevant tree level operators. We quantify if, and when, it is necessary to have the leptoquark mass close to a grand unification scale. We summarize novel results regarding a possibility to have a collider accessible leptoquark without a rapid proton decay. The relevant state could be observed indirectly through its influence on physical processes such as the forward-backward asymmetry in t¯t production due to an antisymmetric set of couplings to a pair of up-quarks. The same leptoquark could affect the muon anomalous magnetic moment through the interaction of a lepton-quark nature. We accordingly investigate whether both sets of couplings can be simultaneously sizable without any conflict with matter stability.
| Item Type: | Article |
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| Uncontrolled Keywords: | Decays of baryons ; Unified theories and models of strong and electroweak interactions |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 25 Apr 2020 15:25 |
| Last Modified: | 25 Apr 2020 15:25 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18012 |
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