Article (Scientific journals)
Radiative accidental matter
Da Silva Simoes, Catarina; Aristizabal Sierra, Diego; Wegman Ostrosky, Daniel
2016In Journal of High Energy Physics
Peer Reviewed verified by ORBi
 

Files


Full Text
art%3A10.1007%2FJHEP07%282016%29124.pdf
Author postprint (571.61 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Beyond Standard Model; Neutrino Physics
Abstract :
[en] Accidental matter models are scenarios where the beyond-the-standard model physics preserves all the standard model accidental and approximate symmetries up to a cutoff scale related with lepton number violation. We study such scenarios assuming that the new physics plays an active role in neutrino mass generation, and show that this unavoidably leads to radiatively induced neutrino masses. We systematically classify all possible models and determine their viability by studying electroweak precision data, bigbang nucleosynthesis and electroweak perturbativity, fi nding that the latter places the most stringent constraints on the mass spectra. These results allow the identi fication of minimal radiative accidental matter models for which perturbativity is lost at high scales. We calculate radiative charged-lepton flavor violating processes in these setups, and show that mu -> e gamma has a rate well within MEG sensitivity provided the lepton-number violating scale is at or below 5 105 GeV, a value (naturally) assured by the radiative suppression mechanism. Sizeable tau -> mu gamma branching fractions within SuperKEKB sensitivity are possible for lower lepton-number breaking scales. We thus point out that these scenarios can be tested not only in direct searches but also in lepton flavor-violating experiments.
Disciplines :
Physics
Author, co-author :
Da Silva Simoes, Catarina ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)
Aristizabal Sierra, Diego ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)
Wegman Ostrosky, Daniel ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)
Language :
English
Title :
Radiative accidental matter
Publication date :
July 2016
Journal title :
Journal of High Energy Physics
ISSN :
1126-6708
eISSN :
1029-8479
Publisher :
Institute of Physics Publishing (IOP), Bristol, United Kingdom
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 September 2016

Statistics


Number of views
75 (9 by ULiège)
Number of downloads
1 (1 by ULiège)

Scopus citations®
 
5
Scopus citations®
without self-citations
4
OpenCitations
 
3

Bibliography


Similar publications



Contact ORBi