Leptoquarks are hypothetical new particles, which couple quarks directly to leptons. They experienced a renaissance in recent years as they prime candidates explain the so-called \textit{flavor anomalies}, i.e. deviations between Standard Model predictions and measurements $b\to s\ell^{+}\ell^{-}$ c\tau\nu$ processes anomalous magnetic moment of muon. At one-loop level these particles unavoidab...

Abstract The LHCb experiment has recently presented new results on Lepton Universality Violation (LUV) in $$B \rightarrow K^{(*)} \ell ^+ ^-$$ B → K ( ∗ ) ℓ <mml...

We study the effects of identical leptons in final state $B^+\to \ell^+ \ell^- \ell^+\bar\nu_{\ell}$ decay. The amplitude process is described by same form factors as ${B\to \ell \ell'\bar\nu'_{\ell}}$ decay for non-identical state. However, differential distributions are strongly different, ${B^+\to \ell^+\bar\nu_{\ell}}$ contains both direct ($M_a$) and exchange ($M_b$) diagrams. calculate a ...

We perform an effective field theory analysis to correlate the charged lepton flavor violating processes ${\ensuremath{\ell}}_{i}\ensuremath{\rightarrow}{\ensuremath{\ell}}_{j}\ensuremath{\gamma}\ensuremath{\gamma}$ and ${\ensuremath{\ell}}_{i}\ensuremath{\rightarrow}{\ensuremath{\ell}}_{j}\ensuremath{\gamma}$. Using current upper bounds on rate for ${\ensuremath{\ell}}_{i}\ensuremath{\rightarr...