Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-06-23
Eur.Phys.J.C7:141-148,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages, now including anomaly cancellation
Scientific paper
10.1007/s100529900965
The Standard Model is extended by a SU(2)L singlet of vector leptoquarks. An additional SU(4) gauge symmetry between right-handed up quarks and right-handed leptons is introduced to render the model renormalizable. The arrangement is made in such a way that no conflict with low energy restrictions is encountered. The SU(2)L singlet mediates interactions between the right-handed leptons and up type quarks for which only moderate low energy restrictions M(LQ)/g(LQ) > few hundred GeV exist. We cancel the anomalies of the model and furthermore argue that the inequality g(LQ) > g(QCD) is a general feature of consistent vector leptoquark models. Although our model is not relevant for HERA, it is interesting per se as a description of leptoquarks of mass < 1 TeV consistent with all low-energy requirements.
Blumhofer Andreas
Lampe Bodo
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