Hadronic branching fractions and DDbar cross-sections at Psi(3770) from CLEO-c

TL;DR

This paper reports on measurements of hadronic decay modes, cross-sections, and form factors of D mesons at the Psi(3770) resonance, providing precise data on branching fractions and non-DDbar decays from the CLEO-c experiment.

Contribution

It presents new, precise measurements of D meson branching fractions, cross-sections, and electromagnetic form factors at Psi(3770), enhancing understanding of charm quark decays and interactions.

Findings

Measured absolute hadronic branching fractions of D mesons.

Determined e+e- to DDbar cross-sections at Psi(3770).

Provided data on timelike electromagnetic form factors of pion, kaon, and proton.

Abstract

We present some recent results in hadronic decays and cross-section measurements at Psi(3770) from CLEO collaboration. They include measurement of absolute hadronic branching fractions of D mesons and e+e- to DDbar cross-sections, inclusive production of eta, eta', phi in D decays, branching fractions of D+ to K0_{S,L} pi+ and eta pi+, Psi(3770) non-DDbar decays, and timelike electromagnetic form factors of pion, kaon and proton. These results are based on 55.8 pb-1 and 281 pb-1 at Psi(3770), and other data samples collected by the CLEO-c detector at the Cornell Electron Storage Ring (CESR).