$D ightarrow π, l ν$ Semileptonic Decays, $|V {cd}|$ and 2$^{nd}$ Row Unitarity from Lattice QCDReport as inadecuate



 $D ightarrow π, l ν$ Semileptonic Decays, $|V {cd}|$ and 2$^{nd}$ Row Unitarity from Lattice QCD


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We present a new calculation of the $D ightarrow \pi, l u$ semileptonic form factor $f^{D ightarrow \pi} +(q^2)$ at $q^2 = 0$ based on HISQ charm and light valence quarks on MILC $N f = 2 +1$ lattices. Using methods developed recently for HPQCD-s study of $D ightarrow K, l u$ decays, we find $f^{D ightarrow \pi} +(0) = 0.666(2

Author: Heechang Na; Christine T. H. Davies; Eduardo Follana; Jonna Koponen; G. Peter Lepage; Junko Shigemitsu

Source: https://archive.org/







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