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  Lepton Number and Lepton Flavor Violation through Color Octet States

Choubey, S., Duerr, M., Mitra, M., & Rodejohann, W. (2012). Lepton Number and Lepton Flavor Violation through Color Octet States. Journal of high energy physics: JHEP, 2012(05): 017, pp. 1-21. doi:10.1007/JHEP05(2012)017.

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1201.3031 (Preprint), 2MB
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 Urheber:
Choubey, Sandhya1, Autor
Duerr, Michael2, Autor           
Mitra, Manimala3, Autor
Rodejohann, Werner4, Autor           
Affiliations:
1Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, 211019, Allahabad, India , ou_persistent22              
2Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society, ou_904549              
3I.N.F.N., Laboratori Nazionali del Gran Sasso, 67010 Assergi (AQ), L’Aquila, Italy , ou_persistent22              
4Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907556              

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Schlagwörter: Neutrino Physics, Beyond Standard Model
 Zusammenfassung: We discuss neutrinoless double beta decay and lepton flavor violating decays such as μ → eγ in the colored seesaw scenario. In this mechanism, neutrino masses are generated at one-loop via the exchange of TeV-scale fermionic and scalar color octets. The same particles mediate lepton number and flavor violating processes. We show that within this framework a dominant color octet contribution to neutrinoless double beta decay is possible without being in conflict with constraints from lepton flavor violating processes. We furthermore compare the “direct” color octet contribution to neutrinoless double beta decay with the “indirect” contribution, namely the usual standard light Majorana neutrino exchange. For degenerate color octet fermionic states both contributions are proportional to the usual effective mass, while for non-degenerate octet fermions this feature is not present. Depending on the model parameters, either of the contributions can be dominant.

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Sprache(n): eng - English
 Datum: 2012-01-142012-05-292012-05-07
 Publikationsstatus: Erschienen
 Seiten: 17 pages, 16 figures
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
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Titel: Journal of high energy physics : JHEP
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Springer
Seiten: - Band / Heft: 2012 (05) Artikelnummer: 017 Start- / Endseite: 1 - 21 Identifikator: ISSN: 1126-6708
CoNE: https://pure.mpg.de/cone/journals/resource/111021927548002