Open Access
Observation ofe + e − → π 0 π 0 h c Z c ( 4020 ) 0
M. ABLIKIM
,
M. N. ACHASOV
,
X. C. Ai
,
O. Albayrak
,
M Albrecht
,
M. Albrecht
,
D. J. Ambrose
,
A. Amoroso
,
F. F. An
,
Q. An
,
J. Z. BAI
,
R. Baldini Ferroli
,
Y. BAN
,
D. W. Bennett
,
J V Bennett
,
M. Bertani
,
D. Bettoni
,
J. M. Bian
,
F Bianchi
,
E. Boger
,
O. Bondarenko
,
I. Boyko
,
R. A. Briere
,
H. Cai
,
X Cai
,
O. Cakir
,
A. Calcaterra
,
G. F. Cao
,
S. A. Cetin
,
J. F. Chang
,
G. Chelkov
,
G. Chen
,
H. S. Chen
,
H. ‐y. Chen
,
J. C. Chen
,
M L Chen
,
S J Chen
,
X. Chen
,
X. R. Chen
,
Y.-B. Chen
,
H.-P. Cheng
,
X. K. Chu
,
Y. P. CHU
,
G. Cibinetto
,
D Cronin-Hennessy
,
H. L. Dai
,
J. P. Dai
,
D. Dedovich
,
Z. Y. DENG
,
A. DENIG
,
I. Denysenko
,
M. Destefanis
,
F. De Mori
,
Y. Ding
,
C. Dong
,
J. Dong
,
L. Y. Dong
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M. Y. Dong
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S. X. DU
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P. F. Duan
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J. Z. Fan
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J. Fang
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S. S. Fang
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X. Fang
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Y. Fang
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L. Fava
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F. Feldbauer
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G. Felici
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C. Q. Feng
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E. Fioravanti
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C. D. FU
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Q. Gao
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Y. Gao
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I. Garzia
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K. Goetzen
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W. X. Gong
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M. GRECO
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M. H. Gu
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Y. T. Gu
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Y.H. Guan
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A. Q. Guo
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L. B. GUO
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T. Guo
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Y. Guo
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Y. P. Guo
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Z. Haddadi
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A. Hafner
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S Han
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Y. L. Han
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F. A. HARRIS
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K. L. HE
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Z.Y. He
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T. Held
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Y. K. HENG
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Z. L. Hou
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C Hu
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H. M. HU
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J. F. Hu
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D. P. JIN
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A. Julin
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N. KALANTAR-NAYESTANAKI
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X. L. Kang
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B. C. Ke
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R. Kliemt
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B. Kloss
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B. Kopf
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W. Lai
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J. S. LANGE
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M. Lara
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P. Larin
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M. Leyhe
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Cheng Li
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D. M. Li
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F. Li
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G. Li
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H. B. Li
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J.-C. Li
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Jin Li
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K Li
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Q. J. LI
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T Li
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W. D. LI
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X. L. Li
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X. M. Li
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Y. F. Liang
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C. X. LIU
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H. B. LIU
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H. H. Liu
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H. M. LIU
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J Liu
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J Liu
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J.-P. LIU
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K. Y. Liu
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L. D. Liu
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Q. Liu
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S. B. Liu
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X. X. Liu
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Y. B. Liu
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Z. A. LIU
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Zhiqiang Liu
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H. Loehner
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X. C. Lou
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H. J. Lu
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J. G. Lu
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R.-Q. Lu
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Y Lü
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Y. 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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M. Lv
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H. L. MA
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Q. M. MA
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X. N. Ma
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X. Y. Ma
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J. G. MESSCHENDORP
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J. Min
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H. MOEINI
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N. Yu. MUCHNOI
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I. B. NIKOLAEV
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B. L. Wang
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D. Wang
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D. Y. 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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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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D. H. Wei
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M. WOLKE
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L.H. Wu
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L. G. Xia
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B. Y. ZHANG
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C Zhang
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C. C. Zhang
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D. H. ZHANG
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H. H. ZHANG
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H.-T. Zhang
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H. Y. Zhang
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J. J. Zhang
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J. L. Zhang
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J. Q. Zhang
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J. W. Zhang
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J Y Zhang
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J. Z. Zhang
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K. Zhang
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L. Zhang
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S H Zhang
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X J. Zhang
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X. Y. Zhang
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Y Zhang
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Y. Zhang
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Y. H. Zhang
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Z. H. Zhang
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Z. P. Zhang
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Z. Y. Zhang
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G. Zhao
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J. W. ZHAO
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J. Y. Zhao
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J. Z. Zhao
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Lei Zhao
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Ling Zhao
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M. G. ZHAO
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Q. Zhao
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Q.W. Zhao
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S.J. Zhao
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T. C. Zhao
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Y. B. Zhao
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Z. G. ZHAO
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B. Zheng
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J. P. Zheng
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Y. H. Zheng
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B. ZHONG
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L. Zhou
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Li Zhou
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X. Zhou
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X. K. Zhou
,
X.-R. ZHOU
,
X. Y. Zhou
,
K. Zhu
,
K. J. Zhu
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S Zhu
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X L Zhu
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Y. C. Zhu
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Y. S. Zhu
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Z. A. ZHU
,
J. Zhuang
,
B. S. ZOU
,
J. H. Zou
Publication type: Journal Article
Publication date: 2014-11-18
scimago Q1
wos Q1
SJR: 2.856
CiteScore: 15.6
Impact factor: 9.0
ISSN: 00319007, 10797114
PubMed ID:
25479489
General Physics and Astronomy
Abstract
Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider at center-of-mass energies of root s = 4.23, 4.26, and 4.36 GeV, we observe e(+)e(-) -> pi(0)pi(0)h(c) for the first time. The Born cross sections are measured and found to be about half of those of e(+)e(-) -> pi(+)pi(-)h(c) within less than 2 sigma. In the pi(0)h(c) mass spectrum, a structure at 4.02 GeV/c(2) is found. It is most likely to be the neutral isospin partner of the Z(c)(4020)(+/-) observed in the process of e(+)e(-) -> pi(+)pi(-)h(c) being found. A fit to the pi(0)h(c) invariant mass spectrum, with the width of the Z(c)(4020)(0) fixed to that of its charged isospin partner and possible interferences with non-Z(c)(4020)(0) amplitudes neglected, gives a mass of (4023.9 +/- 2.2 +/- 3.8) MeV/c(2) for the Z(c)(4020)(0), where the first error is statistical and the second systematic.
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ABLIKIM M. et al. Observation ofe+e−→π0π0hcand a Neutral Charmoniumlike StructureZc(4020)0 // Physical Review Letters. 2014. Vol. 113. No. 21. 212002
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ABLIKIM M. et al. Observation ofe+e−→π0π0hcand a Neutral Charmoniumlike StructureZc(4020)0 // Physical Review Letters. 2014. Vol. 113. No. 21. 212002
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@article{2014_ABLIKIM,
author = {M. ABLIKIM and M. N. ACHASOV and X. C. Ai and O. Albayrak and M Albrecht and M. Albrecht and D. J. Ambrose and A. Amoroso and F. F. An and Q. An and J. Z. BAI and R. Baldini Ferroli and Y. BAN and D. W. Bennett and J V Bennett and M. Bertani and D. Bettoni and J. M. Bian and F Bianchi and E. Boger and O. Bondarenko and I. Boyko and R. A. Briere and H. Cai and X Cai and O. Cakir and A. Calcaterra and G. F. Cao and S. A. Cetin and J. F. Chang and G. Chelkov and G. Chen and H. S. Chen and H. ‐y. Chen and J. C. Chen and M L Chen and S J Chen and X. Chen and X. R. Chen and Y.-B. Chen and H.-P. Cheng and X. K. Chu and Y. P. CHU and G. Cibinetto and D Cronin-Hennessy and H. L. Dai and J. P. Dai and D. Dedovich and Z. Y. DENG and A. DENIG and others},
title = {Observation ofe+e−→π0π0hcand a Neutral Charmoniumlike StructureZc(4020)0},
journal = {Physical Review Letters},
year = {2014},
volume = {113},
publisher = {American Physical Society (APS)},
month = {nov},
url = {https://doi.org/10.1103/PhysRevLett.113.212002},
number = {21},
pages = {212002},
doi = {10.1103/PhysRevLett.113.212002}
}
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