Author:
Wang Zhi-Gang,Lu Fei,Liu Yang
Abstract
AbstractWe construct the $$\Sigma $$
Σ
-type currents to investigate the D-wave charmed baryon states with the QCD sum rules systematically. The predicted masses $$M=3.35^{+0.13}_{-0.18}\,\textrm{GeV}$$
M
=
3
.
35
-
0.18
+
0.13
GeV
($$3.33^{+0.13}_{-0.16}\,\textrm{GeV}$$
3
.
33
-
0.16
+
0.13
GeV
), $$3.34^{+0.14}_{-0.18}\,\textrm{GeV}$$
3
.
34
-
0.18
+
0.14
GeV
($$3.35^{+0.13}_{-0.16}\,\textrm{GeV}$$
3
.
35
-
0.16
+
0.13
GeV
) and $$3.35^{+0.12}_{-0.13}\, \textrm{GeV}$$
3
.
35
-
0.13
+
0.12
GeV
($$3.35^{+0.12}_{-0.14}\,\textrm{GeV}$$
3
.
35
-
0.14
+
0.12
GeV
) for the $$\Omega _c(0,2,{\frac{1}{2}}^+)$$
Ω
c
(
0
,
2
,
1
2
+
)
, $$\Omega _c(0,2,{\frac{3}{2}}^+)$$
Ω
c
(
0
,
2
,
3
2
+
)
and $$\Omega _c(0,2,{\frac{5}{2}}^+)$$
Ω
c
(
0
,
2
,
5
2
+
)
states are in excellent agreement with the experimental data $$ 3327.1\pm 1.2 \text{ MeV }$$
3327.1
±
1.2
MeV
from the LHCb collaboration, and support assigning the $$\Omega _c(3327)$$
Ω
c
(
3327
)
to be the $$\Sigma $$
Σ
-type D-wave $$\Omega _c$$
Ω
c
state with the spin-parity $$J^P={\frac{1}{2}}^+$$
J
P
=
1
2
+
, $${\frac{3}{2}}^+$$
3
2
+
or $${\frac{5}{2}}^+$$
5
2
+
.
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Reference51 articles.
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