Absolute Branching Fraction Measurements of Exclusive D^0 Semileptonic Decays
T. E. Coan, et al. (CLEO Collaboration)
TL;DR
This paper reports the first observation and precise measurement of absolute branching fractions for four exclusive semileptonic D0 meson decays using data from the CLEO-c detector at the psi(3770) resonance.
Contribution
It provides the first measurement of D0 --> rho- e+ nu_e and improves existing measurements for other D0 semileptonic decays.
Findings
First observation of D0 --> rho- e+ nu_e
Precise absolute branching fractions for four D0 decays
Enhanced understanding of D0 semileptonic decay modes
Abstract
With the first data sample collected by the CLEO-c detector at the psi(3770) resonance we have studied four exclusive semileptonic decays of the D0 meson. Our results include the first observation and absolute branching fraction measurement for D0 --> rho- e+ nu_e and improved measurements of the absolute branching fractions for D0 decays to K- e+ nu_e, pi- e+ nu_e, and K*- e+ nu_e.
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