On the scalar potential of minimal flavour violation
Entity
UAM. Departamento de Física TeóricaPublisher
Springer VerlagDate
2011-07-04Citation
10.1007/JHEP07(2011)012
Journal of High Energy Physics 2011.7 (2011): 012
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP07(2011)012Funded by
R. Alonso and M.B. Gavela acknowledge CICYT through the project FPA2009-09017 and by CAM through the project HEPHACOS, P-ESP-00346. R. Alonso acknowledges financial support from the MICINN grant BES-2010-037869. L. Merlo acknowledges the German `Bundesministerium für Bildung und Forschung' under contract 05H09WOE. S. Rigolin acknowledges the partial support of an Excellence Grant of Fondazione Cariparo and of the European Program, Unification in the LHC era, under the contract PITN-GA-2009-237920 (UNILHC)Project
Comunidad de Madrid. S2009/ESP-1473/HEPHACOSEditor's Version
http://dx.doi.org/10.1007/JHEP07(2011)012Subjects
Beyond standard model; Global symmetries; Quark masses and SM parameters; FísicaNote
Journal of High Energy Physics 2011.7 (2011): 012 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Rights
© SISSA 2011.Abstract
Assuming the Minimal Flavour Violation hypothesis, we derive the general scalar potential for fields whose background values are the Yukawa couplings. We analyze the minimum of the potential and discuss the fine-tuning required to dynamically generate the mass hierarchies and the mixings between different quark generations. Two main cases are considered, corresponding to Yukawa interactions being effective operators of dimension five or six (or, equivalently, resulting from bi-fundamental and fundamental scalar fields, respectively). At the renormalizable and classical level, no mixing is naturally induced from dimension five Yukawa operators. On the contrary, from dimension six Yukawa operators one mixing angle and a strong mass hierarchy among the generations result.
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Google Scholar:Alonso, Rodrigo
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Gavela Legazpi, María Belén
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Rigolin, Stefano
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Merlo, Luca
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