Higher Charmonia
red = data
black = higher charmonia [1]
yellow = HORSE [2]
Spin-Orbit
splittings
too small
in Higher Charmonia.
Meson-loop
splittings (
S
: 0.1-0.2 GeV,
D
: 0-50 MeV)
OK
in HORSE.
D
states are almost
on top
of
HO bare spectrum
.
1. Phys. Rev. D72, 054026 (2005)
2. Phys. Rev. D21, 772 (1980); D27, 1527 (1983)