Observation of e+e− → π0π0ψ2(3823)

Publikationstyp:

Zeitschriftenaufsatz

Metadaten:

Abstract

Abstract Using a data sample corresponding to an integrated luminosity of 11.3 fb−1 collected at center-of-mass energies from 4.23 to 4.70 GeV with the BESIII detector, we observe the process e+e−→ π0π0ψ2(3823) for the first time with a statistical significance of 6.0 standard deviations. The ratio of average cross sections for e+e−→ π0π0ψ2(3823) and π+π−ψ2(3823) is determined to be $$ \mathcal{R}=\frac{\sigma \left[{e}^{+}{e}^{-}\to {\pi}^0{\pi}^0{\psi}_2(3823)\right]}{\sigma \left[{e}^{+}{e}^{-}\to {\pi}^{+}{\pi}^{-}{\psi}_2(3823)\right]}=0.57\pm 0.14\pm 0.05 $$<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>R</mml:mi> <mml:mo>=</mml:mo> <mml:mfrac> <mml:mrow> <mml:mi>σ</mml:mi> <mml:mfenced> <mml:mrow> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>−</mml:mo> </mml:msup> <mml:mo>→</mml:mo> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:msub> <mml:mi>ψ</mml:mi> <mml:mn>2</mml:mn> </mml:msub> <mml:mfenced> <mml:mn>3823</mml:mn> </mml:mfenced> </mml:mrow> </mml:mfenced> </mml:mrow> <mml:mrow> <mml:mi>σ</mml:mi> <mml:mfenced> <mml:mrow> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>−</mml:mo> </mml:msup> <mml:mo>→</mml:mo> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>−</mml:mo> </mml:msup> <mml:msub> <mml:mi>ψ</mml:mi> <mml:mn>2</mml:mn> </mml:msub> <mml:mfenced> <mml:mn>3823</mml:mn> </mml:mfenced> </mml:mrow> </mml:mfenced> </mml:mrow> </mml:mfrac> <mml:mo>=</mml:mo> <mml:mn>0.57</mml:mn> <mml:mo>±</mml:mo> <mml:mn>0.14</mml:mn> <mml:mo>±</mml:mo> <mml:mn>0.05</mml:mn> </mml:math>, which is consistent with expectations from isospin symmetry. Here and below, the first uncertainties are statistical and the second are systematic. The mass of the ψ2(3823) is measured to be M[ψ2(3823)] = 3824.5 ± 2.4 ± 1.0 MeV/c2. Due to the limited data sample, an upper limit of 18.8 MeV at 90% confidence level is set on the intrinsic width of ψ2(3823).

Autoren

M Ablikim
MN Achasov
P Adlarson
M Albrecht
R Aliberti
A Amoroso
MR An
Q An
XH Bai
Y Bai
O Bakina
R Baldini Ferroli
I Balossino
Y Ban
V Batozskaya
D Becker
K Begzsuren
N Berger
M Bertani
D Bettoni
F Bianchi
J Bloms
A Bortone
I Boyko
RA Briere
A Brueggemann
H Cai
X Cai
A Calcaterra
GF Cao
N Cao
SA Cetin
JF Chang
WL Chang
GR Che
G Chelkov
C Chen
Chao Chen
G Chen
HS Chen
ML Chen
SJ Chen
SM Chen
T Chen
XR Chen
XT Chen
YB Chen
ZJ Chen
WS Cheng
SK Choi
X Chu
G Cibinetto
F Cossio
JJ Cui
HL Dai
JP Dai
A Dbeyssi
RE de Boer
D Dedovich
ZY Deng
A Denig
I Denysenko
M Destefanis
F De Mori
Y Ding
J Dong
LY Dong
MY Dong
X Dong
SX Du
P Egorov
YL Fan
J Fang
SS Fang
WX Fang
Y Fang
R Farinelli
L Fava
F Feldbauer
G Felici
CQ Feng
JH Feng
K Fischer
M Fritsch
C Fritzsch
CD Fu
H Gao
YN Gao
Yang Gao
S Garbolino
I Garzia
PT Ge
ZW Ge
C Geng
EM Gersabeck
A Gilman
K Goetzen
L Gong
WX Gong
W Gradl
M Greco
LM Gu
MH Gu
YT Gu
CY Guan
AQ Guo
LB Guo
RP Guo
YP Guo
A Guskov
TT Han
WY Han
XQ Hao
FA Harris
KK He
KL He
FH Heinsius
CH Heinz
YK Heng
C Herold
GY Hou
YR Hou
ZL Hou
HM Hu
JF Hu
T Hu
Y Hu
GS Huang
KX Huang
LQ Huang
XT Huang
YP Huang
Z Huang
T Hussain
N Hüsken
W Imoehl
M Irshad
J Jackson
S Jaeger
S Janchiv
E Jang
JH Jeong
Q Ji
QP Ji
XB Ji
XL Ji
YY Ji
ZK Jia
HB Jiang
SS Jiang
XS Jiang
Y Jiang
JB Jiao
Z Jiao
S Jin
Y Jin
MQ Jing
T Johansson
N Kalantar-Nayestanaki
XS Kang
R Kappert
M Kavatsyuk
BC Ke
IK Keshk
A Khoukaz
R Kiuchi
R Kliemt
L Koch
OB Kolcu
B Kopf
M Kuemmel
M Kuessner
A Kupsc
W Kühn
JJ Lane
JS Lange
P Larin
A Lavania
L Lavezzi
ZH Lei
H Leithoff
M Lellmann
T Lenz
C Li
C Li
CH Li
Cheng Li
DM Li
F Li
G Li
H Li
H Li
HB Li
HJ Li
HN Li
JQ Li
JS Li
JW Li
Ke Li
LJ Li
LK Li
Lei Li
MH Li
PR Li
SX Li
SY Li
T Li
WD Li
WG Li
XH Li
XL Li
Xiaoyu Li
YG Li
ZX Li
ZY Li
H Liang
H Liang
H Liang
YF Liang
YT Liang
GR Liao
LZ Liao
J Libby
A Limphirat
CX Lin
DX Lin
T Lin
BJ Liu
CX Liu
D Liu
FH Liu
Fang Liu
Feng Liu
GM Liu
H Liu
HB Liu
HM Liu
Huanhuan Liu
Huihui Liu
JB Liu
JL Liu
JY Liu
K Liu
KY Liu
Ke Liu
L Liu
Lu Liu
MH Liu
PL Liu
Q Liu
SB Liu
T Liu
WK Liu
WM Liu
X Liu
Y Liu
YB Liu
ZA Liu
ZQ Liu
XC Lou
FX Lu
HJ Lu
JG Lu
XL Lu
Y Lu
YP Lu
ZH Lu
CL Luo
MX Luo
T Luo
XL Luo
XR Lyu
YF Lyu
FC Ma
HL Ma
LL Ma
MM Ma
QM Ma
RQ Ma
RT Ma
XY Ma
Y Ma
FE Maas
M Maggiora
S Maldaner
S Malde
QA Malik
A Mangoni
YJ Mao
ZP Mao
S Marcello
ZX Meng
J Messchendorp
G Mezzadri
H Miao
TJ Min
RE Mitchell
XH Mo
N Yu Muchnoi
Y Nefedov
F Nerling
IB Nikolaev
Z Ning
S Nisar
Y Niu
SL Olsen
Q Ouyang
S Pacetti
X Pan
Y Pan
A Pathak
M Pelizaeus
HP Peng
K Peters
JL Ping
RG Ping
S Plura
S Pogodin
V Prasad
FZ Qi
H Qi
HR Qi
M Qi
TY Qi
S Qian
WB Qian
Z Qian
CF Qiao
JJ Qin
LQ Qin
XP Qin
XS Qin
ZH Qin
JF Qiu
SQ Qu
KH Rashid
CF Redmer
KJ Ren
A Rivetti
V Rodin
M Rolo
G Rong
Ch Rosner
SN Ruan
HS Sang
A Sarantsev
Y Schelhaas
C Schnier
K Schoenning
M Scodeggio
KY Shan
W Shan
XY Shan
JF Shangguan
LG Shao
M Shao
CP Shen
HF Shen
XY Shen
BA Shi
HC Shi
JY Shi
QQ Shi
RS Shi
X Shi
XD Shi
JJ Song
WM Song
YX Song
S Sosio
S Spataro
F Stieler
KX Su
PP Su
YJ Su
GX Sun
H Sun
HK Sun
JF Sun
L Sun
SS Sun
T Sun
WY Sun
X Sun
YJ Sun
YZ Sun
ZT Sun
YH Tan
YX Tan
CJ Tang
GY Tang
J Tang
LY Tao
QT Tao
M Tat
JX Teng
V Thoren
WH Tian
Y Tian
I Uman
B Wang
BL Wang
CW Wang
DY Wang
F Wang
HJ Wang
HP Wang
K Wang
LL Wang
M Wang
MZ Wang
Meng Wang
S Wang
S Wang
T Wang
TJ Wang
W Wang
WH Wang
WP Wang
X Wang
XF Wang
XL Wang
Y Wang
YD Wang
YF Wang
YH Wang
YQ Wang
Yaqian Wang
Z Wang
ZY Wang
Ziyi Wang
DH Wei
F Weidner
SP Wen
DJ White
U Wiedner
G Wilkinson
M Wolke
L Wollenberg
JF Wu
LH Wu
LJ Wu
X Wu
XH Wu
Y Wu
YJ Wu
Z Wu
L Xia
T Xiang
D Xiao
GY Xiao
H Xiao
SY Xiao
YL Xiao
ZJ Xiao
C Xie
XH Xie
Y Xie
YG Xie
YH Xie
ZP Xie
TY Xing
CF Xu
CJ Xu
GF Xu
HY Xu
QJ Xu
XP Xu
YC Xu
ZP Xu
F Yan
L Yan
WB Yan
WC Yan
HJ Yang
HL Yang
HX Yang
L Yang
SL Yang
Tao Yang
YF Yang
YX Yang
Yifan Yang
M Ye
MH Ye
JH Yin
ZY You
BX Yu
CX Yu
G Yu
T Yu
XD Yu
CZ Yuan
L Yuan
SC Yuan
XQ Yuan
Y Yuan
ZY Yuan
CX Yue
AA Zafar
FR Zeng
X Zeng
Y Zeng
YH Zhan
AQ Zhang
BL Zhang
BX Zhang
DH Zhang
GY Zhang
H Zhang
HH Zhang
HH Zhang
HY Zhang
JL Zhang
JQ Zhang
JW Zhang
JX Zhang
JY Zhang
JZ Zhang
Jianyu Zhang
Jiawei Zhang
LM Zhang
LQ Zhang
Lei Zhang
P Zhang
QY Zhang
Shuihan Zhang
Shulei Zhang
XD Zhang
XM Zhang
XY Zhang
XY Zhang
Y Zhang
YT Zhang
YH Zhang
Yan Zhang
Yao Zhang
ZH Zhang
ZY Zhang
ZY Zhang
G Zhao
J Zhao
JY Zhao
JZ Zhao
Lei Zhao
Ling Zhao
MG Zhao
SJ Zhao
YB Zhao
YX Zhao
ZG Zhao
A Zhemchugov
B Zheng
JP Zheng
YH Zheng
B Zhong
C Zhong
X Zhong
H Zhou
LP Zhou
X Zhou
XK Zhou
XR Zhou
XY Zhou
YZ Zhou
J Zhu
K Zhu
KJ Zhu
LX Zhu
SH Zhu
SQ Zhu
TJ Zhu
WJ Zhu
YC Zhu
ZA Zhu
JH Zou

DOI

10.1007/jhep02(2023)171

eISSN

1029-8479

Ausgabe der Veröffentlichung

Zeitschrift

Journal of High Energy Physics

Sprache

Artikelnummer

171

Online publication date

2023

Status

Published online

Herausgeber

Springer Science and Business Media LLC

Herausgeber URL

http://dx.doi.org/10.1007/jhep02(2023)171

Datum der Datenerfassung

2023

Titel

Observation of e+e− → π0π0ψ2(3823)

Ausgabe der Zeitschrift

2023

Datenquelle: Crossref

Andere Metadatenquellen:

Beziehungen:

Eigentum von

Experimentelle Physik III.1

Hat Preprint

Observation of e^+e^-\toπ^0π^0ψ_2(3823)

Observation of e+e− → π0π0ψ2(3823)

Werkzeuge