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Evidence of a Resonant Structure in the e^{+}e^{-}→π^{+}D^{0}D^{*-} Cross Section between 4.05 and 4.60 GeV.

Authors :
Ablikim M
Achasov MN
Ahmed S
Albrecht M
Amoroso A
An FF
An Q
Bai Y
Bakina O
Baldini Ferroli R
Ban Y
Bennett DW
Bennett JV
Berger N
Bertani M
Bettoni D
Bian JM
Bianchi F
Boger E
Boyko I
Briere RA
Cai H
Cai X
Cakir O
Calcaterra A
Cao GF
Cetin SA
Chai J
Chang JF
Chelkov G
Chen G
Chen HS
Chen JC
Chen ML
Chen PL
Chen SJ
Chen YB
Cibinetto G
Dai HL
Dai JP
Dbeyssi A
Dedovich D
Deng ZY
Denig A
Denysenko I
Destefanis M
De Mori F
Ding Y
Dong C
Dong J
Dong LY
Dong MY
Dou ZL
Du SX
Duan PF
Fan JZ
Fang J
Fang SS
Fang X
Fang Y
Farinelli R
Fava L
Fegan S
Feldbauer F
Felici G
Feng CQ
Fritsch M
Fu CD
Gao Q
Gao XL
Gao Y
Gao YG
Gao Z
Garzia I
Goetzen K
Gong L
Gong WX
Gradl W
Greco M
Gu MH
Gu S
Gu YT
Guo AQ
Guo LB
Guo RP
Guo YP
Haddadi Z
Han S
Hao XQ
Harris FA
He KL
Heinsius FH
Held T
Heng YK
Holtmann T
Hou ZL
Hu C
Hu HM
Hu T
Hu Y
Huang GS
Huang JS
Huang XT
Huang XZ
Huang ZL
Hussain T
Ikegami Andersson W
Ji Q
Ji QP
Ji XB
Ji XL
Jiang XS
Jiang XY
Jiao JB
Jiao Z
Jin DP
Jin S
Jin Y
Johansson T
Julin A
Kalantar-Nayestanaki N
Kang XL
Kang XS
Kavatsyuk M
Ke BC
Khan T
Khoukaz A
Kiese P
Kliemt R
Koch L
Kolcu OB
Kopf B
Kornicer M
Kuemmel M
Kuessner M
Kuhlmann M
Kupsc A
Kühn W
Lange JS
Lara M
Larin P
Lavezzi L
Leiber S
Leithoff H
Leng C
Li C
Li C
Li DM
Li F
Li FY
Li G
Li HB
Li HJ
Li JC
Li KJ
Li K
Li K
Li L
Li PL
Li PR
Li QY
Li T
Li WD
Li WG
Li XL
Li XN
Li XQ
Li ZB
Liang H
Liang YF
Liang YT
Liao GR
Lin DX
Liu B
Liu BJ
Liu CX
Liu D
Liu FH
Liu F
Liu F
Liu HB
Liu HM
Liu H
Liu H
Liu JB
Liu JP
Liu JY
Liu K
Liu KY
Liu K
Liu PL
Liu Q
Liu SB
Liu X
Liu YB
Liu ZA
Liu Z
Long YF
Lou XC
Lu HJ
Lu JG
Lu Y
Lu YP
Luo CL
Luo MX
Luo XL
Lyu XR
Ma FC
Ma HL
Ma LL
Ma MM
Ma QM
Ma T
Ma XN
Ma XY
Ma YM
Maas FE
Maggiora M
Malik QA
Mao YJ
Mao ZP
Marcello S
Meng ZX
Messchendorp JG
Mezzadri G
Min J
Min TJ
Mitchell RE
Mo XH
Mo YJ
Morales Morales C
Morello G
Muchnoi NY
Muramatsu H
Mustafa A
Nefedov Y
Nerling F
Nikolaev IB
Ning Z
Nisar S
Niu SL
Niu XY
Olsen SL
Ouyang Q
Pacetti S
Pan Y
Papenbrock M
Patteri P
Pelizaeus M
Pellegrino J
Peng HP
Peters K
Pettersson J
Ping JL
Ping RG
Pitka A
Poling R
Prasad V
Qi HR
Qi M
Qian S
Qiao CF
Qin N
Qin XS
Qin ZH
Qiu JF
Rashid KH
Redmer CF
Richter M
Ripka M
Rolo M
Rong G
Rosner C
Ruan XD
Sarantsev A
Savrié M
Schnier C
Schoenning K
Shao M
Shen CP
Shen PX
Shen XY
Sheng HY
Song JJ
Song WM
Song XY
Sosio S
Sowa C
Spataro S
Sun GX
Sun JF
Sun L
Sun SS
Sun XH
Sun YJ
Sun YK
Sun YZ
Sun ZJ
Sun ZT
Tang CJ
Tang GY
Tang X
Tapan I
Tiemens M
Tsednee B
Uman I
Varner GS
Wang B
Wang BL
Wang DY
Wang D
Wang K
Wang LL
Wang LS
Wang M
Wang M
Wang P
Wang PL
Wang WP
Wang XF
Wang Y
Wang YD
Wang YF
Wang YQ
Wang Z
Wang ZG
Wang ZH
Wang ZY
Wang Z
Weber T
Wei DH
Weidenkaff P
Wen SP
Wiedner U
Wolke M
Wu LH
Wu LJ
Wu Z
Xia L
Xia X
Xia Y
Xiao D
Xiao H
Xiao YJ
Xiao ZJ
Xie YG
Xie YH
Xiong XA
Xiu QL
Xu GF
Xu JJ
Xu L
Xu QJ
Xu QN
Xu XP
Yan L
Yan WB
Yan WC
Yan WC
Yan YH
Yang HJ
Yang HX
Yang L
Yang YH
Yang YX
Yang Y
Ye M
Ye MH
Yin JH
You ZY
Yu BX
Yu CX
Yuan CZ
Yuan Y
Yuncu A
Zafar AA
Zallo A
Zeng Y
Zeng Z
Zhang BX
Zhang BY
Zhang CC
Zhang DH
Zhang HH
Zhang HY
Zhang J
Zhang JL
Zhang JQ
Zhang JW
Zhang JY
Zhang JZ
Zhang K
Zhang L
Zhang SQ
Zhang XY
Zhang YH
Zhang YT
Zhang Y
Zhang Y
Zhang Y
Zhang ZH
Zhang ZP
Zhang ZY
Zhao G
Zhao JW
Zhao JY
Zhao JZ
Zhao L
Zhao L
Zhao MG
Zhao Q
Zhao SJ
Zhao TC
Zhao YB
Zhao ZG
Zhemchugov A
Zheng B
Zheng JP
Zheng WJ
Zheng YH
Zhong B
Zhou L
Zhou X
Zhou XK
Zhou XR
Zhou XY
Zhou YX
Zhu J
Zhu J
Zhu K
Zhu KJ
Zhu S
Zhu SH
Zhu XL
Zhu YC
Zhu YS
Zhu ZA
Zhuang J
Zou BS
Zou JH
Source :
Physical review letters [Phys Rev Lett] 2019 Mar 15; Vol. 122 (10), pp. 102002.
Publication Year :
2019

Abstract

The cross section of the process e^{+}e^{-}→π^{+}D^{0}D^{*-} for center-of-mass energies from 4.05 to 4.60 GeV is measured precisely using data samples collected with the BESIII detector operating at the BEPCII storage ring. Two enhancements are clearly visible in the cross section around 4.23 and 4.40 GeV. Using several models to describe the dressed cross section yields stable parameters for the first enhancement, which has a mass of 4228.6±4.1±6.3  MeV/c^{2} and a width of 77.0±6.8±6.3  MeV, where the first uncertainties are statistical and the second ones are systematic. Our resonant mass is consistent with previous observations of the Y(4220) state and the theoretical prediction of a DD[over ¯]_{1}(2420) molecule. This result is the first observation of Y(4220) associated with an open-charm final state. Fits with three resonance functions with additional Y(4260), Y(4320), Y(4360), ψ(4415), or a new resonance do not show significant contributions from either of these resonances. The second enhancement is not from a single known resonance. It could contain contributions from ψ(4415) and other resonances, and a detailed amplitude analysis is required to better understand this enhancement.

Details

Language :
English
ISSN :
1079-7114
Volume :
122
Issue :
10
Database :
MEDLINE
Journal :
Physical review letters
Publication Type :
Academic Journal
Accession number :
30932669
Full Text :
https://doi.org/10.1103/PhysRevLett.122.102002