Analysis of the semileptonic decay $D^0\to {\bar{K}}^0{\pi }^{-}{\mu }^{+}\nu$

Abstract

Using data collected by the fixed target Fermilab experiment FOCUS, we present several first measurements for the semileptonic decay $D^0\to {\bar{K}}^0{\pi }^{-}{\mu }^{+}\nu$. Using a model that includes a ${\bar{K}}^0{\pi }^{-}$ S-wave component, we measure the form factor ratios to be r_v= 1.706+-0.677+-0.342 and r_2= 0.912+-0.370+-0.104 and the S-wave amplitude to be A=0.347+-0.222+-0.053 GeV^-1. Finally, we measure the vector semileptonic branching ratio $\frac{Γ(D^0 \to K^{*}(892){-}μ^+ν)}{Γ(D^0 \to \bar{K}^0π^-π^+)}= 0.337+-0.034+-0.013.

14 pages, 4 figures, 2 tables

References in corpus (3)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Study of the Cabibbo-suppressed decay modes D0-->Pi-pi+ and D0-->K-K+
• First CLEO-c Results on Exclusive D^0 Semileptonic Decays

Cited by in corpus (14)

• 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
• Standard Model prediction and new physics tests for D0 -> h+h-l+l- (h=π,K; l=e,μ)
• Absolute Branching Fraction Measurements of Exclusive D^0 Semileptonic Decays
• Single-Coupling Bounds on R-parity violating Supersymmetry, an update
• Study of the decay $D^0\to {\bar{K}}^0{\pi }^{-}{e}^{+}{\nu }_e$
• Heavy + heavy and heavy + light pseudoscalar to vector semileptonic transitions
• Low-energy pi-pi and pi-K scatterings revisited in three-flavour resummed chiral perturbation theory
• Method of Studying ${\Lambda }_b^0$ decays with one missing particle
• Comment on evidence for new interference phenomena in the decay D+ -> K- pi+ mu+ nu
• Test of lepton universality and measurement of the form factors of $D^0\to K^{\ast }(892{)}^{-}{\mu }^{+}{\nu }_{\mu }$
• Precise measurement of the form factors in $D^0\to K^{\ast }(892{)}^{-}{\mu }^{+}{\nu }_{\mu }$ and test of lepton universality with $D^0\to K^{\ast }(892{)}^{-}{\ell }^{+}{\nu }_{\ell }$ decays
• Precise $K^{\ast }(892)\to K\pi$ branching fractions