The large data sample accumulated by the Belle experiment at KEKB asymmetric energy e+e− collider provides opportunities to study charmonia (bottomonia) and charmonium-like (bottomonium-like) exotic particles. In this review, we report recent results on these topics from Belle, including searches for B → hcK, B → Y (4260)K, B → X (3872/3915)(→χc1π0)K, B0 → X (3872)γ, e+e− → γχcJ and a new measurement of the e+e− → ϒ(nS)π+ π−(n = 1, 2, 3) cross sections at energies from 10.52 to 11.02 GeV.
REFERENCES
1.
S. -K.
Choi
et al. (Belle Collaboration
), Phys. Rev. Lett.
91
, 262001
(2003
).2.
R.
Garg
et al. (Belle Collaboration
), Phys. Rev. D
99
, 071102(R
) (2019
).3.
R. M.
Albuquerque
, M.
Nielsen
, and C. M.
Zanetti
, Phys. Lett. B
747
, 83
(2015
).4.
B.
Aubert
et al. (BaBar Collaboration
), Phys. Rev. D
73
, 011101(R
) (2006
).5.
M.
Pivk
and F. R.
Le Diberder
, Nucl. Instrum. Methods Phys. Res. Sect. A
555
, 356
(2005
).6.
K.
Chilikin
et al. (Belle Collaboration
), Phys. Rev. D
100
, 012001
(2019
).7.
M.
Bauer
, B.
Stech
and M.
Wirbel
, Z. Phys. C
34
, 103
(1987
).8.
M.
Suzuki
, Phys. Rev. D
66
, 037503
(2002
).9.
M.
Tanabashi
et al. (Particle Data Group
), Phys. Rev. D
98
, 030001
(2018
).10.
F.
Fang
et al. (Belle Collaboration
), Phys. Rev. D
74
, 012007
(2006
).11.
R.
Aaij
et al. (LHCb Collaboration
), Eur. Phys. J. C
73
, 2462
(2013
).12.
13.
X. Q.
Li
, X.
Liu
and Y. M.
Wang
, Phys. Rev. D
74
, 114029
(2006
).14.
M.
Ablikim
et al. (BESIII Collaboration
), Phys. Rev. D
99
, 072008
(2019
).15.
16.
V.
Bhardwaj
et al. (Belle Collaboration
), Phys. Rev. D
99
, 111101(R
) (2019
).17.
M.
Ablikim
et al. (BESIII Collaboration
), Phys. Rev. Lett.
122
, 202001
(2019
).18.
S.
Dubynskiy
and M. B.
Voloshin
, Phys. Rev. D
77
, 014013
(2008
).19.
S.-K.
Choi
et al. (Belle Collaboration
), Phys. Rev. Lett.
94
, 182002
(2005
).20.
F. K.
Guo
and Ulf-G.
Meissner
, Phys. Rev. D
86
, 091501(R
) (2012
).21.
S. L.
Olsen
, Phys. Rev. D
91
, 057501
(2015
).22.
P. -C.
Chou
et al. (Belle Collaboration
), Phys. Rev. D
100
, 012002
(2019
).23.
Y. D.
Yang
, G.
Lu
, and R.
Wang
, Eur. Phys. J. C
34
, 291
(2004
).24.
Y.
Li
and C.-D.
Lü
, Phys. Rev. D
74
, 097502
(2006
).25.
S. J.
Brodsky
and S.
Gardner
, Phys. Rev. D
65
, 054016
(2002
).26.
M.
Feindt
and U.
Kerzel
, Nucl. Instrum. Methods Phys. Res., Sect. A
559
, 190
(2006
).27.
G. J.
Feldman
and R. D.
Cousins
, Phys. Rev. D
57
, 3873
(1998
).28.
J.
Lundberg
, J.
Conrad
, W.
Rolke
, and A.
Lopez
, Comput. Phys. Commun.
181
, 683
(2010
).29.
S.
Jia
et al. (Belle Collaboration
), Phys. Rev. D
98
, 092015
(2018
).30.
M.
Ablikim
et al. (BESIII Collaboration
), Chin. Phys. C
39
, 041001
(2015
).31.
M.
Ablikim
et al. (BESIII Collaboration
), Phys. Rev. D
96
, 051101(R
) (2017
).32.
M.
Ablikim
et al. (BESIII Collaboration
), Phys. Rev. Lett.
112
, 092001
(2014
).33.
L.
Ma
, Z.F.
Sun
, X.H.
Liu
, W.Z.
Deng
, X.
Liu
, and S.L.
Zhu
, Phys. Rev. D
90
, 034020
(2014
).34.
35.
J. J.
Dudek
, R. G.
Edwards
, and C. E.
Thomas
, Phys. Rev. D
79
, 094504
(2009
).36.
N.
Brambilla
, W.
Chen
, Y.
Jia
, V.
Shtabovenko
, and A.
Vairo
, Phys. Rev. D
97
, 096001
(2018
).37.
L. B.
Chen
, Y.
Liang
, and C. F.
Qiao
, J. High Energy Phys.
, 01
(2018
) 091
.38.
39.
A. E.
Bondar
, R. V.
Mizuk
and M. B.
Voloshin
, Mod. Phys. Lett. A
32
, 1750025
(2017
).40.
C.
Meng
and K. T.
Chao
, Phys. Rev. D
77
, 074003
(2008
).41.
Y. A.
Simonov
and A. I.
Veselov
, Phys. Lett. B
671
, 55
(2009
).42.
M. B.
Voloshin
, Phys. Rev. D
85
, 034024
(2012
).43.
A.
Ali
, C.
Hambrock
and M. J.
Aslam
, Phys. Rev. Lett.
104
, 162001
(2010
).44.
S.
Dubynskiy
and M. B.
Voloshin
, Phys. Lett. B
666
, 344
(2008
).45.
D.
Ebert
, R. N.
Faustov
and V. O.
Galkin
, Eur. Phys. J. C
71
, 1825
(2011
).46.
S.
Godfrey
and K.
Moats
, Phys. Rev. D
92
, 054034
(2015
).47.
48.
A. M.
Badalian
, B. L. G.
Bakker
and I. V.
Danilkin
, Phys. Atom. Nucl.
73
, 138
(2010
).49.
D.
Santel
et al. (Belle Collaboration
), Phys. Rev. D
93
, 011101
(2016
).
This content is only available via PDF.
© 2020 Author(s).
2020
Author(s)