Quark and lepton flavor violation; LHCb; Dark Matter
Abstract :
[en] The LHCb collaboration has recently reported on some anomalies in b→s transitions. In addition to discrepancies with the Standard Model (SM) predictions in some angular observables and branching ratios, an intriguing hint for lepton universality violation was found. Here we propose a simple model that extends the SM with a dark sector charged under an additional U(1) gauge symmetry. The spontaneous breaking of this symmetry gives rise to a massive Z′ boson, which communicates the SM particles with a valid dark matter candidate, while solving the b→s anomalies with contributions to the relevant observables.
Disciplines :
Physics
Author, co-author :
Aristizabal Sierra, Diego ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)
Vicente, Avelino ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)
Staub, Florian; CERN
Language :
English
Title :
Shedding Light on the b to s Anomalies
Publication date :
06 July 2015
Journal title :
Physical Review. D, Particles, Fields, Gravitation, and Cosmology
ISSN :
1550-7998
eISSN :
1550-2368
Publisher :
American Physical Society, College Park, United States - Maryland
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