Exclusive $D_s\to (\eta ,{\eta }^{\prime })l\nu$ decays in light cone QCD

Abstract

Probing the $\bar{s}s$ content of the $\eta$ and ${\eta }^{\prime }$ mesons and considering mixing between these states as well as gluonic contributions, the form factors responsible for semileptonic $D_s\to (\eta ,{\eta }^{\prime })l\nu$ transitions are calculated via light cone QCD sum rules. Corresponding branching fractions and their ratio for different mixing angles are also obtained. Our results are in a good consistency with experimental data as well as predictions of other nonperturbative approaches.

13 Pages, 2 Figure and 4 Tables

References in corpus (7)

• Measurement of the pseudoscalar mixing angle and ${\eta }^{\prime }$ gluonium content with KLOE detector
• Interpretation of the "$f_{D_s}$ puzzle" in SM and beyond
• Determining the $\eta -{\eta }^{\prime }$ mixing by the newly measured $BR(D(D_s)\to \eta ({\eta }^{\prime })+\bar{l}+{\nu }_l$
• Pseudoscalar glueball and $\eta -{\eta }^{\prime }$ mixing
• Rare $B_s$ decays to $\eta$ and ${\eta }^{\prime }$ final states
• Exclusive rare $B_s\to (K,\eta ,{\eta }^{\prime }){\ell }^{+}{\ell }^{-}$ decays in the light-front quark model
• Heavy-to-light transition form factors and their relations in light-cone QCD sum rules

Cited by in corpus (15)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Semileptonic $D_{(s)}$-meson decays in the light of recent data
• Form factors of B, Bs -> eta, eta' and D, Ds -> eta, eta' transitions from QCD light-cone sum rules
• $D_s\to \eta ,{\eta }^{\prime }$ semileptonic decay form factors with disconnected quark loop contributions
• Light-Cone Sum Rules for the $D_{(s)}\to {\eta }^{(\prime )}l{\nu }_l$ Form Factor
• Measurement of the Dynamics of the Decays $D_s^{+}\to {\eta }^{(\prime )}{e}^{+}{\nu }_e$
• A comprehensive study on the semileptonic decay of heavy flavor mesons
• Precision Measurements of $D_s^{+}\to \eta e^{+}{\nu }_e$ and $D_s^{+}\to {\eta }^{\prime }{e}^{+}{\nu }_e$
• Observation of $D_s^{+}\to {\eta }^{\prime }{\mu }^{+}{\nu }_{\mu }$, Precision Test of Lepton Flavor Universality with $D_s^{+}\to {\eta }^{(\prime )}{\ell }^{+}{\nu }_{\ell }$, and First Measurements of $D_s^{+}\to {\eta }^{(\prime )}{\mu }^{+}{\nu }_{\mu }$ Decay Dynamics
• Investigating $D_s^{+}\to {\pi }^0{\ell }^{+}{\nu }_{\ell }$ decay process within QCD sum rule approach
• Disconnected contributions to D-meson semi-leptonic decay form factors
• Neutrino Nonstandard Interactions and Lepton Flavor Universality violation at SND@LHC via charm production
• Lattice calculations of Ds to eta and eta' decay form factors