Recent results from Fermilab E687 on charm spectroscopy

摘要

Recent analyses of charm spectroscopy from Fermilab fixed target experiment 687 are summarized. Emphasis is placed on the phenomenology of Cabibbo suppression in the meson sector. Such transitions have been observed in the semileptonic modes and hadronic modes. While the former transitions give us an opportunity to observe the weak current and the CKM matrix, a systematic comparison of the latter transitions allow us to study strong interaction effects, and possibly, light quark spectroscopy.