出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We report the preliminary measurement by the FOCUS Collaboration (E831
and E687 at Fermilab) of masses and widths of L=1 charm mesons, including the rst
observation of the decay mode D
s2
! D+K0
S . We also report a light meson result from the
E687 dataset, i.e., the observation of a narrow dip structure in di
ractive photoproduction
of the 3+3− nal state.
