We study three newly observed D(2550), D(2610), and D(2760) by the BaBar Collaboration utilizing the mass spectra and investigating the strong decays. Our calculation indicates that D(2610) is an admixture of 23S1 and 13D1
Nearby in the stack
with
JP=1−
.
D(2760)
can be explained as either the orthogonal partner of D(2610) or
13D3
. Our estimate of the decay width for
D(2550)
, assuming it as
21S0
, is far below the experimental value. the threshold effect because the strong decay of
D(2550)→D0∗π
is forbidden. The decay behavior of the remaining two 1D charmed mesons, i.e.,
3D2
and
1D2
(
JP=2−
) states, is predicted, which will help future experimental search for these missing