Naturalness of the invisible axion model
Identifieur interne : 002212 ( Main/Exploration ); précédent : 002211; suivant : 002213Naturalness of the invisible axion model
Auteurs : R. R. Volkas [Australie] ; A. J. Davies [Australie] ; G. C. Joshi [Australie]Source :
- Physics Letters B [ 0370-2693 ] ; 1988.
English descriptors
- Teeft :
Abstract
Abstract: We discuss the choice of parameters that is necessary to establish the enormous hierarchy between the doublet and singlet Higgs vacuum expectation values in the invisible axion model. We show that this choice is associated with an approximate symmetry of the theory, thus demonstrating that the hierarchy in this model is natural in the sense of 't Hooft. It is then shown that this choice also leads to the existence of Higgs particles with masses ∼Mw, which is particularily relevant for invisible axion models featuring spontaneous CP-violation. We comment on how our conclusions are affected by the introduction of right-handed neutrinos with large Majorana masses within the context of the see-saw mechanism.
Url:
DOI: 10.1016/0370-2693(88)91084-2
Affiliations:
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We show that this choice is associated with an approximate symmetry of the theory, thus demonstrating that the hierarchy in this model is natural in the sense of 't Hooft. It is then shown that this choice also leads to the existence of Higgs particles with masses ∼Mw, which is particularily relevant for invisible axion models featuring spontaneous CP-violation. We comment on how our conclusions are affected by the introduction of right-handed neutrinos with large Majorana masses within the context of the see-saw mechanism.</div></front></TEI><affiliations><list><country><li>Australie</li></country><region><li>Victoria (État)</li></region><settlement><li>Melbourne</li></settlement><orgName><li>Université de Melbourne</li></orgName></list><tree><country name="Australie"><region name="Victoria (État)"><name sortKey="Volkas, R R" sort="Volkas, R R" uniqKey="Volkas R" first="R. R." last="Volkas">R. R. Volkas</name></region><name sortKey="Davies, A J" sort="Davies, A J" uniqKey="Davies A" first="A. J." last="Davies">A. J. Davies</name><name sortKey="Joshi, G C" sort="Joshi, G C" uniqKey="Joshi G" first="G. C." last="Joshi">G. C. Joshi</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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