Abstract
Abstract
In this work, the extended Gursey-Radicati mass formula is used to analyze the masses of the tetraquark system with configurations
Q
q
¯
q
q
¯
/
q
q
¯
q
Q
¯
,
Q
q
¯
Q
q
¯
/
qq
Q
¯
Q
¯
,
Q
Q
¯
q
Q
¯
/
QQ
q
¯
Q
¯
and
QQ
Q
¯
Q
¯
(Q = c, b). The discovery of two singly heavy tetraquark structures
T
c
s
¯
0
a
(
2900
)
++
and
T
c
s
¯
0
(
2900
)
0
at LHCb acts as a motivation for this work. They were observed in the
D
s
+
π
+
and
D
s
+
π
−
invariant mass spectra in two B-decay processes
B
+
→
D
−
D
s
+
π
+
and
B
0
→
D
0
¯
D
s
+
π
−
, respectively. By using the SU(3)
f
flavor representation, we classified the recently observed singly heavy tetraquarks having quark content
u
d
¯
c
s
¯
and
u
¯
dc
s
¯
in octet representation with J
P
value 0+ and forming the isospin triplet(I = 1). Our thorough comparison of mass spectra with both experimental and theoretical data demonstrates reasonable agreement. Further, decay channels and widths for the hidden-charm tetraquark states are computed in the framework of the diquark-antidiquark model. Our results may provide useful enlightenment for future experimental studies.
Funder
Science and Engineering Research Board
Subject
Condensed Matter Physics,Mathematical Physics,Atomic and Molecular Physics, and Optics
Cited by
2 articles.
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