Measurement of e+e- →π0π0ψ (3686) at √s from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

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Measurement of e+e- →π0π0ψ (3686) at √s from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure. / The BELLE collaboration.

In: Physical Review D, Vol. 97, No. 5, 052001, 07.03.2018.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{a5ab665869e2475fa64d41ac67a05e49,

title = "Measurement of e+e- →π0π0ψ (3686) at √s from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure",

abstract = "Using e+e- collision data collected with the BESIII detector at the BEPCII collider corresponding to an integrated luminosity of 5.2 fb-1 at center-of-mass energies (s) from 4.009 to 4.600 GeV, the process e+e-→π0π0ψ(3686) is studied for the first time. The corresponding Born cross sections are measured and found to be half of those of the reaction e+e-→π+π-ψ(3686). This is consistent with the expectation from isospin symmetry. Furthermore, the Dalitz plots for π0π0ψ(3686) are accordant with those of π+π-ψ(3686) at all energy points, and a neutral analog to the structure in π±ψ(3686) around 4040 MeV/c2 first observed at s=4.416 GeV is observed in the isospin neutral mode at the same energy.",

keywords = "Y(4260), BESIII, CHARM, DECAY, STATE",

author = "{The BELLE collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and Bian, {J. M.} and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and Chu, {X. K.} and G. Cibinetto and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and A. Denig and I. Denysenko and M. Destefanis and {De Mori}, F. and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",

note = "Publisher Copyright: {\textcopyright} 2018 authors.",

year = "2018",

month = mar,

day = "7",

doi = "10.1103/PhysRevD.97.052001",

language = "English",

volume = "97",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "5",

}

RIS

TY - JOUR

T1 - Measurement of e+e- →π0π0ψ (3686) at √s from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

AU - The BELLE collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bian, J. M.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Denysenko, I.

AU - Destefanis, M.

AU - De Mori, F.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

PY - 2018/3/7

Y1 - 2018/3/7

N2 - Using e+e- collision data collected with the BESIII detector at the BEPCII collider corresponding to an integrated luminosity of 5.2 fb-1 at center-of-mass energies (s) from 4.009 to 4.600 GeV, the process e+e-→π0π0ψ(3686) is studied for the first time. The corresponding Born cross sections are measured and found to be half of those of the reaction e+e-→π+π-ψ(3686). This is consistent with the expectation from isospin symmetry. Furthermore, the Dalitz plots for π0π0ψ(3686) are accordant with those of π+π-ψ(3686) at all energy points, and a neutral analog to the structure in π±ψ(3686) around 4040 MeV/c2 first observed at s=4.416 GeV is observed in the isospin neutral mode at the same energy.

AB - Using e+e- collision data collected with the BESIII detector at the BEPCII collider corresponding to an integrated luminosity of 5.2 fb-1 at center-of-mass energies (s) from 4.009 to 4.600 GeV, the process e+e-→π0π0ψ(3686) is studied for the first time. The corresponding Born cross sections are measured and found to be half of those of the reaction e+e-→π+π-ψ(3686). This is consistent with the expectation from isospin symmetry. Furthermore, the Dalitz plots for π0π0ψ(3686) are accordant with those of π+π-ψ(3686) at all energy points, and a neutral analog to the structure in π±ψ(3686) around 4040 MeV/c2 first observed at s=4.416 GeV is observed in the isospin neutral mode at the same energy.

KW - Y(4260)

KW - BESIII

KW - CHARM

KW - DECAY

KW - STATE

UR - http://www.scopus.com/inward/record.url?scp=85044853175&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.97.052001

DO - 10.1103/PhysRevD.97.052001

M3 - Article

AN - SCOPUS:85044853175

VL - 97

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 5

M1 - 052001

ER -

ID: 12418281