Closing the window on single leptoquark solutions to the B-physics anomalies

A Angelescu, D Bečirević, DA Faroughy… - Journal of High Energy …, 2018 - Springer
We examine various scenarios in which the Standard Model is extended by a light
leptoquark state to solve for one or both B-physics anomalies, viz. RD* exp> RD* SM or/and …

Patterns of New Physics in b→ sℓ+ ℓ− transitions in the light of recent data

B Capdevila, A Crivellin, S Descotes-Genon… - Journal of High Energy …, 2018 - Springer
A bstract In the Standard Model (SM), the rare transitions where a bottom quark decays into
a strange quark and a pair of light leptons exhibit a potential sensitivity to physics beyond …

On the standard model predictions for and

M Bordone, G Isidori, A Pattori - The European Physical Journal C, 2016 - Springer
We evaluate the impact of radiative corrections in the ratios Γ B → M μ^+ μ^-/Γ B → M e^+ e^-
Γ B→ M μ+ μ-/Γ B→ M e+ e-when the meson M is a K or a K^* K∗. Employing the cuts on m …

Simultaneous explanation of R (D (∗)) and b→ sμ+ μ−: the last scalar leptoquarks standing

A Crivellin, D Müller, T Ota - Journal of High Energy Physics, 2017 - Springer
A bstract Over the past years, experiments accumulated intriguing hints for new physics (NP)
in flavor observables, namely in the anomalous magnetic moment of the muon (a μ), in R (D …

Minimal Leptoquark Explanation for the , , and Anomalies

M Bauer, M Neubert - Physical review letters, 2016 - APS
We show that by adding a single new scalar particle to the standard model, a TeV-scale
leptoquark with the quantum numbers of a right-handed down quark, one can explain in a …

[HTML][HTML] Understanding the first measurement of B (B→ Kνν)

L Allwicher, D Bečirević, G Piazza, S Rosauro-Alcaraz… - Physics Letters B, 2024 - Elsevier
Recently, Belle II reported on the first measurement of B (B±→ K±ν ν¯) which appears to be
almost 3σ larger than predicted in the Standard Model. We point out the important …

Global analysis of b→ sℓℓ anomalies

S Descotes-Genon, L Hofer, J Matias, J Virto - Journal of High Energy …, 2016 - Springer
A bstract We present a detailed discussion of the current theoretical and experimental
situation of the anomaly in the angular distribution of B→ K*(→ Kπ) μ+ μ−, observed at LHCb …

Flavour anomalies after the RK∗ measurement

G D'Amico, M Nardecchia, P Panci, F Sannino… - Journal of High Energy …, 2017 - Springer
A bstract The LHCb measurement of the μ/e ratio RK∗ indicates a deficit with respect to the
Standard Model prediction, supporting earlier hints of lepton universality violation observed …

Interpreting hints for lepton flavor universality violation

W Altmannshofer, P Stangl, DM Straub - Physical Review D, 2017 - APS
We interpret the recent hints for lepton flavor universality violation in rare B meson decays.
Based on a model-independent effective Hamiltonian approach, we determine regions of …

Lepton universality violation with lepton flavor conservation in B-meson decays

R Alonso, B Grinstein, JM Camalich - Journal of High Energy Physics, 2015 - Springer
A bstract Anomalies in semileptonic B-meson decays present interesting patterns that might
be revealing the shape of the new physics to come. Under the assumption that neutrino and …