Tree-level contributions to the rare decays B+ --> pi+ nu anti-nu, B+ --> K+ nu anti-nu, and B+ --> K*+ nu anti-nu in the Standard Model

Abstract

The tree-level contributions to the rare decays B+ --> pi+ nu anti-nu, B+ --> K+ nu anti-nu, and B+ --> K*+ nu anti-nu are analyzed and compared to those occurring in K+ --> pi+ nu anti-nu, D+ --> pi+ nu anti-nu, and Ds+ --> pi+ nu anti-nu. It is shown that these purely long-distance contributions, arising from the exchange of a charged lepton, can be significant in B+ decays for an intermediate tau, potentially blurring the distinction between the modes used to extract B --> tau nu and those used to probe the genuine short-distance b --> (s,d) nu anti-nu FCNC transitions. Numerically, the tree-level contributions are found to account for 97%, 12% and 14% of the total B+ --> pi+ nu anti-nu, B+ --> K+ nu anti-nu, and B+ --> K*+ nu anti-nu rates, respectively.

arXiv comment5 pages, 6 figures

References in corpus (12)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules
• High Precision determination of the pi, K, D and D_s decay constants from lattice QCD
• Relations between ΔM_{s,d} and B_{s,d}\to μ\barμin Models with Minimal Flavour Violation
• Rare Charm Decays in the Standard Model and Beyond
• B->V gamma Beyond QCD Factorisation
• Improved estimates of rare K decay matrix-elements from Kl3 decays
• Charm Quark Contribution to K+ -> pi+ nu anti-nu at Next-to-Next-to-Leading Order
• New strategies for New Physics search in B -> K* nu anti-nu, B -> K nu anti-nu and B -> X(s) nu anti-nu decays
• The Rare Decay K^+ -> pi^+ nu nubar at the Next-to-Next-to-Leading Order in QCD
• Light-quark Loops in K->pi nu nu
• Electroweak Corrections to the Charm Quark Contribution to K+ -> pi+ nu nu-bar

Cited by in corpus (31)

• Implications of lepton flavor universality violations in B decays
• Rare $B$ Decays as Tests of the Standard Model
• Towards the Identification of New Physics through Quark Flavour Violating Processes
• The Anatomy of Quark Flavour Observables in 331 Models in the Flavour Precision Era
• Quark flavour mixing with right-handed currents: an effective theory approach
• Model-independent constraints on new physics in b --> s transitions
• FCNC portals to the dark sector
• Flavor & new physics opportunities with rare charm decays into leptons
• Phenomenology of semileptonic B-meson decays with form factors from lattice QCD
• The Anatomy of Z' and Z with Flavour Changing Neutral Currents in the Flavour Precision Era
• Revisiting $B\to K^{(\ast )}\nu \bar{\nu }$ decays in the Standard Model and beyond
• Standard Model predictions for $B\to K{\ell }^{+}{\ell }^{-}$, $B\to K{\ell }_1^{-}{\ell }_2^{+}$ and $B\to K\nu \bar{\nu }$ using form factors from $N_f=2+1+1$ lattice QCD
• Precision Flavour Physics with $B\to K\nu \bar{\nu }$ and $B\to K{l}^{+}{l}^{-}$
• Understanding the first measurement of $\mathcal{B}(B\to K\nu \bar{\nu })$
• Particle-Antiparticle Mixing, CP Violation and Rare K and B Decays in a Minimal Theory of Fermion Masses
• When Energy Goes Missing: New Physics in $b\to s\nu \nu$ with Sterile Neutrinos
• Rare charm $\mathbf{c}\to \mathbf{u}\mathbf{\nu }\bar{\mathbf{\nu }}$ dineutrino null tests for ${\mathbf{e}}^{+}{\mathbf{e}}^{-}$-machines
• Scalar Dark Matter and Standard Model with Four Generations
• Flavour Theory: 2009
• Prospects for searches of $b\to s\nu \bar{\nu }$ decays at FCC-ee
• Invisible Higgs decay with B\to Kν\barν constraint
• Coloured Scalars Mediated Rare Charm Meson Decays to Invisible Fermions
• Impact of new invisible particles on $B\to K^{(\ast )}{E}_{\mathrm{miss}}$ observables
• Spin-$1/2$ invisible particles in heavy meson decays
• Exploring charm decays with missing energy in leptoquark models
• Revisiting $B\to K^{\ast }(\to K\pi )\nu \bar{\nu }$ decays
• The study of light invisible particles in $B_c$ decays
• The light invisible boson in FCNC decays of $B$ and $B_c$ mesons
• Superfactory of bottomed hadrons Belle II
• $B\to K^{(\ast )}\nu \bar{\nu }$ in covariant confined quark model
• Rare decays B\to Mν\barν in the TC2 model and the LHT model