Open Access
Confirmation of theX ( 1835 ) and Observation of the ResonancesX ( 2120 ) andX ( 2370 ) inJ / ψ → γ π + π − η ′
M. ABLIKIM
,
M. N. ACHASOV
,
L. An
,
Q. An
,
Z. H. An
,
J. Z. BAI
,
R. Baldini
,
Y. BAN
,
J. Becker
,
N. Berger
,
M. Bertani
,
J. M. Bian
,
I. Boyko
,
R. A. Briere
,
V. Bytev
,
X Cai
,
G. F. Cao
,
X.-X. Cao
,
J. F. Chang
,
G. Chelkov
,
G. Chen
,
H. S. Chen
,
J. C. Chen
,
M L Chen
,
S J Chen
,
Y. Chen
,
Y.-B. Chen
,
H.-P. Cheng
,
Y. P. CHU
,
D Cronin-Hennessy
,
H. L. Dai
,
J. P. Dai
,
D. Dedovich
,
Z. Y. DENG
,
I. Denysenko
,
M. Destefanis
,
Y. Ding
,
L. Y. Dong
,
M. Y. Dong
,
S. X. DU
,
M. Y. Duan
,
R. R. FAN
,
J. Fang
,
S. S. Fang
,
F. Feldbauer
,
C. Q. Feng
,
C. D. FU
,
J. L. Fu
,
Y. Gao
,
C. Geng
,
K. Goetzen
,
W. X. Gong
,
M. GRECO
,
S. Grishin
,
M. H. Gu
,
Y. T. Gu
,
Y.H. Guan
,
A. Q. Guo
,
L. B. GUO
,
Y. P. Guo
,
X. Q. Hao
,
F. A. HARRIS
,
K. L. HE
,
M. He
,
Z.Y. He
,
Y. K. HENG
,
Z. L. Hou
,
H. M. HU
,
J. F. Hu
,
T. Hu
,
B. Huang
,
G. M. Huang
,
J.‐S. Huang
,
X.-T. Huang
,
Y. P. Huang
,
T. Hussain
,
C. S. Ji
,
Q. Ji
,
X. B. Ji
,
X. L. Ji
,
L. K. Jia
,
L.L. Jiang
,
X. S. Jiang
,
J. B. JIAO
,
Z Jiao
,
D. P. JIN
,
S. Jin
,
F. F. Jing
,
M. Kavatsyuk
,
S. Komamiya
,
W. Kuehn
,
J. S. LANGE
,
J. K. C. Leung
,
Cheng Li
,
Cui Li
,
D. M. Li
,
F. Li
,
G. Li
,
H. B. Li
,
J.-C. Li
,
Lei Li
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N. B. Li
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Q. J. LI
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W. D. LI
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W. G. LI
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X. L. Li
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X. N. LI
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X. Q. Li
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X. R. Li
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Z. B. LI
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H. Liang
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Y. F. Liang
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Y T Liang
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G. R. Liao
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X. T. Liao
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B. J. LIU
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C. L. Liu
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C. X. LIU
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C. Y. Liu
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F. H. Liu
,
Fang Liu
,
Fang Liu
,
Feng Liu
,
G. C. Liu
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H Liu
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H. Liu
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H. B. LIU
,
H. M. LIU
,
H.-W. Liu
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J.-P. LIU
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K. Liu
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K. Y. Liu
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Q. Liu
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S. B. Liu
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X. Liu
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X. H. Liu
,
Y. B. Liu
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Y. W. Liu
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Yong Liu
,
Z. A. LIU
,
Z. Q. Liu
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H. Loehner
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G. R. LU
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H. J. Lu
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J. G. Lu
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Q. W. Lu
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X R Lü
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X. R. Lu
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Y.-p. Lu
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C. L. LUO
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M. X. Luo
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T. Luo
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X.‐L. Luo
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C. L. Ma
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F. C. MA
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H. L. MA
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Q. M. MA
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T. Ma
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X Ma
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X. Y. Ma
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M. Maggiora
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Q. A. Malik
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H. Mao
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Y. J. Mao
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Z. P. Mao
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J. G. MESSCHENDORP
,
J. Min
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R E Mitchell
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X. H. Mo
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C. Motzko
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N. Yu. MUCHNOI
,
Y. Nefedov
,
Z. Ning
,
S. L. Olsen
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Q. Ouyang
,
S. Pacetti
,
M. Pelizaeus
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K. Peters
,
J. L. PING
,
R. G. PING
,
R. Poling
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C. S. J. Pun
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M. Qi
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S. Qian
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C F. Qiao
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X. S. Qin
,
J. F. QIU
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K. H. Rashid
,
G. RONG
,
X. D. RUAN
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A. SARANTSEV
,
J. Schulze
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M. Shao
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C. P. Shen
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X. Y. SHEN
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H. Y. SHENG
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M. R. Shepherd
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X. Y. Song
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S. Sonoda
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S. Spataro
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B. SPRUCK
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D. H. Sun
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G. X. Sun
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J. F. SUN
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S‐S. Sun
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X. D. Sun
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Y. J. Sun
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Y. Z. SUN
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Z. J. Sun
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Z. T. Sun
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C. J. Tang
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X. Tang
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X. F. Tang
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H. L. Tian
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D. TOTH
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G. S. Varner
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X Wan
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X. Wan
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B. Q. Wang
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K. Wang
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L. L. WANG
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L. S. Wang
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M Wang
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P. Wang
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P. L. WANG
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Q. Wang
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S. G. WANG
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X. L. Wang
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Y. D. Wang
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Y. F. Wang
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Y. Q. Wang
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Z Wang
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Z. Wang
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Z G Wang
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Z. Y. Wang
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D. H. Wei
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S. P. Wen
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U. WIEDNER
,
L.H. Wu
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N. Wu
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Weinan Wu
,
W. Wu
,
Z. Wu
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Z. J. Xiao
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Y. G. Xie
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G. F. XU
,
G.-M. Xu
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H. Xu
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Y. Xu
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Z. R. Xu
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Z. Z. Xu
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Z. Xue
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L. Yan
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W. B. YAN
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Y. H. Yan
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H. X. YANG
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M. Yang
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T. YANG
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Y. Yang
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Y. X. Yang
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M. Ye
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M. H. YE
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B.X. YU
,
C. X. YU
,
L. Yu
,
C. Z. Yuan
,
W.-L. Yuan
,
Y. Yuan
,
A. A. Zafar
,
A. Zallo
,
Y. Zeng
,
B. X. ZHANG
,
B. Y. ZHANG
,
C. C. Zhang
,
D. H. ZHANG
,
H. H. ZHANG
,
H. Y. Zhang
,
J. Zhang
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J. W. Zhang
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J Y Zhang
,
J. Z. Zhang
,
L. Zhang
,
S H Zhang
,
T. R. Zhang
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X J. Zhang
,
X. Y. Zhang
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Y Zhang
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Y. Zhang
,
Y. H. Zhang
,
Z. P. Zhang
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Z. Y. Zhang
,
G. Zhao
,
H. S. Zhao
,
Jiawei Zhao
,
Jingwei Zhao
,
Lei Zhao
,
Ling Zhao
,
M. G. ZHAO
,
Q. Zhao
,
S.J. Zhao
,
T. C. Zhao
,
X. H. Zhao
,
Y. B. Zhao
,
Z. G. ZHAO
,
Z.L. Zhao
,
B. Zheng
,
J. P. Zheng
,
Y. H. Zheng
,
Z. P. ZHENG
,
B. ZHONG
,
J. Zhong
,
L. Zhong
,
L. Zhou
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X. K. Zhou
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X.-R. ZHOU
,
C. Zhu
,
K. Zhu
,
K. J. Zhu
,
S.-H. Zhu
,
X L Zhu
,
X. W. ZHU
,
Y. S. Zhu
,
Z. A. ZHU
,
J. Zhuang
,
B. S. ZOU
,
J. H. Zou
,
J. X. ZUO
,
P. Zweber
Publication type: Journal Article
Publication date: 2011-02-16
scimago Q1
wos Q1
SJR: 2.856
CiteScore: 15.6
Impact factor: 9.0
ISSN: 00319007, 10797114
PubMed ID:
21405509
General Physics and Astronomy
Abstract
With a sample of (225.2±2.8)×10(6) J/ψ events registered in the BESIII detector, J/ψ→γπ(+)π(-)η(') is studied using two η(') decay modes: η(')→π(+)π(-)η and η(')→γρ(0). The X(1835), which was previously observed by BESII, is confirmed with a statistical significance that is larger than 20σ. In addition, in the π(+)π(-)η(') invariant-mass spectrum, the X(2120) and the X(2370), are observed with statistical significances larger than 7.2σ and 6.4σ, respectively. For the X(1835), the angular distribution of the radiative photon is consistent with expectations for a pseudoscalar.
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ABLIKIM M. et al. Confirmation of theX(1835)and Observation of the ResonancesX(2120)andX(2370)inJ/ψ→γπ+π−η′ // Physical Review Letters. 2011. Vol. 106. No. 7. 072002
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ABLIKIM M. et al. Confirmation of theX(1835)and Observation of the ResonancesX(2120)andX(2370)inJ/ψ→γπ+π−η′ // Physical Review Letters. 2011. Vol. 106. No. 7. 072002
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@article{2011_ABLIKIM,
author = {M. ABLIKIM and M. N. ACHASOV and L. An and Q. An and Z. H. An and J. Z. BAI and R. Baldini and Y. BAN and J. Becker and N. Berger and M. Bertani and J. M. Bian and I. Boyko and R. A. Briere and V. Bytev and X Cai and G. F. Cao and X.-X. Cao and J. F. Chang and G. Chelkov and G. Chen and H. S. Chen and J. C. Chen and M L Chen and S J Chen and Y. Chen and Y.-B. Chen and H.-P. Cheng and Y. P. CHU and D Cronin-Hennessy and H. L. Dai and J. P. Dai and D. Dedovich and Z. Y. DENG and I. Denysenko and M. Destefanis and Y. Ding and L. Y. Dong and M. Y. Dong and S. X. DU and M. Y. Duan and R. R. FAN and J. Fang and S. S. Fang and F. Feldbauer and C. Q. Feng and C. D. FU and J. L. Fu and Y. Gao and C. Geng and others},
title = {Confirmation of theX(1835)and Observation of the ResonancesX(2120)andX(2370)inJ/ψ→γπ+π−η′},
journal = {Physical Review Letters},
year = {2011},
volume = {106},
publisher = {American Physical Society (APS)},
month = {feb},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.106.072002},
number = {7},
pages = {072002},
doi = {10.1103/PhysRevLett.106.072002}
}
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