Shedding light on the $b\to s$ anomalies with a dark sector

By D. A. Sierra, Avelino Vicente, Florian Staub. 2015

185 citations recorded by the source corpus.

The LHCb collaboration has recently reported on some anomalies in $b\to s$ 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 $Z^\prime$ boson, which communicates the SM particles with a valid dark matter candidate, while solving the $b\to s$ anomalies with contributions to the relevant observables.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/0fa88f255f0535525375d0ed9fcc733abf78c53f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. R. Alonso
2. Jure Zupan
3. Vladimir Vava Gligorov
4. C. Murphy
5. R. Barbieri
6. B. Grinstein
7. D. Marsh

In Nuclear and High Energy Physics

1. J. Camalich
2. C. Murphy
3. R. Alonso
4. Vladimir Vava Gligorov
5. Jure Zupan
6. Ediotors A. Cerri
7. S. Malvezzi
8. Fabrizio Senia

Citations in the corpus

• B-decay anomalies in a composite leptoquark model (2016, background): “…of these anomalies and models, including but not limited to: kaon physics [38–40], kinematic distributions in the decays of B mesons [41–43], tau lepton searches [44, 45], dark matter [46, 47], and the evolution of the renormalization group equations (RGE) that leads to multiple effects [48].”
• Opportunities in Flavour Physics at the HL-LHC and HE-LHC (2018, background): “Also, scenarios where the Z 0 couples to both quarks and leptons indirectly through the mixing with heavy vectorlike fermions have been considered [347, 937, 938].”
• Lepton universality violation with lepton flavor conservation in B-meson decays (2015, background): “The appearance of all the aforementioned anomalies has prompted intense theoretical activity (see for example [5, 7, 21, 22, 24–42]).”