Limit on a Right-Handed Admixture to the Weak $b\to c$ Current from Semileptonic Decays

Robert Feger, Verena Klose, Heiko Lacker +2

We determine an upper bound for a possible right-handed $b\to c$ quark current admixture in semileptonic $\bar{B}\to X_c{\ell }^{-}\bar{\nu }$ decays from a simulateous fit to moment…