Lepton universality and lepton flavor conservation tests with dineutrino modes

  title={Lepton universality and lepton flavor conservation tests with dineutrino modes},
  author={Rigo Bause and Hector Gisbert and Marcel Golz and Gudrun Hiller},
  journal={The European Physical Journal C},
SU(2)L\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$SU(2)_L$$\end{document}-invariance links charged dilepton and dineutrino couplings. Phenomenological implications are worked out for flavor changing neutral currents involving strange, charm, beauty and top quark transitions in a model-independent way. We put… 

Exploring charm decays with missing energy in leptoquark models

We investigate the possibility that scalar leptoquarks generate consequential effects on the flavor-changing neutral current decays of charmed hadrons into final states with missing energy

Probing for new physics with rare charm baryon (Λc, Ξc, Ωc) decays

Abstract We analyze rare charm baryon decays within the standard model and beyond. We identify all null test observables in unpolarized Λc→ pℓ+ℓ−, ℓ = e, μ decays, and study the new physics

b → cτ$$ \overline{\nu} $$e,μ contributions to R(D(*))

Abstract The R(D(*)) puzzle stands for a ~ 3σ violation of lepton flavor universality between the decay rates of B → D(*)τν and B → D(*)ℓν, where ℓ = e, μ. If it is accounted for by new physics,

c→uνν¯ transitions of Bc mesons: 331 model facing Standard Model null tests

The Glashow-Iliopoulos-Maiani mechanism is extremely efficient to suppress the flavor-changing neutral current decays of charmed hadrons induced by the c → u transitions, making such processes

Theoretical and experimental status of rare charm decays

Rare charm decays offer the unique possibility to explore flavour-changing neutral-currents in the up-sector within the Standard Model and beyond. Due to the lack of effective methods to reliably

Triplet vector boson model explanation to the $B$ meson anomalies: An updated view and perspectives

The triplet vector boson (TVB) is a simplified new physics model involving massive vector bosons transforming as a weak triplet vector, which it has been proposed as a combined explanation to the

Multi-lepton probes of new physics and lepton-universality in top-quark interactions

Model-independent analysis of $b\to d$ processes

We perform a model-independent analysis of | ∆ b | = | ∆ d | = 1 processes to test the standard model and probe flavor patterns of new physics. Constraints on Wilson coefficients are obtained from

Interplay of dineutrino modes with semileptonic rare B-decays

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>We present a systematic global analysis of dineutrino modes <jats:italic>b →



Lepton flavor violation and dilepton tails at the LHC

The LHC provides the most stringent limits on several flavor-conserving ones and dilepton tails offer the best probes for charm-quark transitions at current luminosities and that they provide competitive limits for tauonic transitions.

Search for charged lepton-flavour violation in top-quark decays at the LHC with the ATLAS detector

A direct search for charged lepton-flavour violation in top-quark decays is presented. The data analysed correspond to $79.8\ \text{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy

Updated Standard Model Prediction for $K \to \pi \nu \bar{\nu}$ and $\epsilon_K$

The rare $K \to \pi \nu \bar{\nu}$ decay modes and the parameter $\epsilon_K$ that measures CP violation in Kaon mixing are sensitive probes of physics beyond the standard model. In this article we

A challenge to lepton universality in B-meson decays

Recent studies of B-meson decays involving the higher-mass tau lepton have resulted in observations that challenge lepton universality at the level of four standard deviations, and could have profound implications for the understanding of particle physics.

Review of lepton universality tests in B decays

Several measurements of tree- and loop-level b-hadron decays performed in the recent years hint at a possible violation of Lepton Universality. This article presents an experimental and theoretical

Erratum to: The new physics reach of null tests with $$D \rightarrow \pi \ell \ell $$ and $$D_s \rightarrow K \ell \ell $$ decays

A Correction to this paper has been published: https://doi.org/10.1140/epjc/s10052-020-7621-7.

doi:10.1007/JHEP03(2021)095 [arXiv:2012.04120 [hepex]

  • [CMS], JHEP 03,
  • 2021

Particle Data Group

  • PTEP 2020,
  • 2020