Observation of a structure in e+e-→φη′ at s from 2.05 to 3.08 GeV observation of a structure in e+e-→φη′

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Observation of a structure in e⁺e^-→φη′ at s from 2.05 to 3.08 GeV observation of a structure in e⁺e^-→φη′. / BESIII Collaboration.

In: Physical Review D, Vol. 102, No. 1, 012008, 01.07.2020.

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

BibTeX

@article{baeb1f1a8f8f4cb5bade49693e2eac88,

title = "Observation of a structure in e+e-→φη′ at s from 2.05 to 3.08 GeV observation of a structure in e+e-→φη′",

abstract = "The process e+e-→φη′ has been studied for the first time in detail using data sample collected with the BESIII detector at the BEPCII collider at center of mass energies from 2.05 to 3.08 GeV. A resonance with quantum numbers JPC=1 - is observed with mass M=(2177.5±4.8(stat)±19.5(syst))MeV/c2 and width Γ=(149.0±15.6(stat)±8.9(syst)) MeV with a statistical significance larger than 10σ, including systematic uncertainties. If the observed structure is identified with the φ(2170), then the ratio of partial width between the φη′ by BESIII and φη by BABAR is (ℬφηRΓeeR)/(ℬφη′RΓeeR)=0.23±0.10(stat)±0.18(syst), which is smaller than the prediction of the ss¯g hybrid models by several orders of magnitude.",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson and S. Ahmed and M. Albrecht and A. Amoroso and Q. An and Anita and Y. Bai and O. Bakina and Ferroli, {R. Baldini} and I. Balossino and Y. Ban and K. Begzsuren and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat and J. Bloms and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and N. Cao and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and Chen, {D. Y.} and G. Chen and Chen, {H. S.} and J. Chen and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and Cheng, {W. S.} and G. Cibinetto and F. Cossio and Cui, {X. F.} and Dai, {H. L.} and Dai, {J. P.} and Dai, {X. C.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",

year = "2020",

month = jul,

day = "1",

doi = "10.1103/PhysRevD.102.012008",

language = "English",

volume = "102",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "1",

}

RIS

TY - JOUR

T1 - Observation of a structure in e+e-→φη′ at s from 2.05 to 3.08 GeV observation of a structure in e+e-→φη′

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Amoroso, A.

AU - An, Q.

AU - Anita,

AU - Bai, Y.

AU - Bakina, O.

AU - Ferroli, R. Baldini

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Biernat, J.

AU - Bloms, J.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cao, N.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, W. S.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dai, X. C.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - The process e+e-→φη′ has been studied for the first time in detail using data sample collected with the BESIII detector at the BEPCII collider at center of mass energies from 2.05 to 3.08 GeV. A resonance with quantum numbers JPC=1 - is observed with mass M=(2177.5±4.8(stat)±19.5(syst))MeV/c2 and width Γ=(149.0±15.6(stat)±8.9(syst)) MeV with a statistical significance larger than 10σ, including systematic uncertainties. If the observed structure is identified with the φ(2170), then the ratio of partial width between the φη′ by BESIII and φη by BABAR is (ℬφηRΓeeR)/(ℬφη′RΓeeR)=0.23±0.10(stat)±0.18(syst), which is smaller than the prediction of the ss¯g hybrid models by several orders of magnitude.

AB - The process e+e-→φη′ has been studied for the first time in detail using data sample collected with the BESIII detector at the BEPCII collider at center of mass energies from 2.05 to 3.08 GeV. A resonance with quantum numbers JPC=1 - is observed with mass M=(2177.5±4.8(stat)±19.5(syst))MeV/c2 and width Γ=(149.0±15.6(stat)±8.9(syst)) MeV with a statistical significance larger than 10σ, including systematic uncertainties. If the observed structure is identified with the φ(2170), then the ratio of partial width between the φη′ by BESIII and φη by BABAR is (ℬφηRΓeeR)/(ℬφη′RΓeeR)=0.23±0.10(stat)±0.18(syst), which is smaller than the prediction of the ss¯g hybrid models by several orders of magnitude.

UR - http://www.scopus.com/inward/record.url?scp=85092898820&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.102.012008

DO - 10.1103/PhysRevD.102.012008

M3 - Article

AN - SCOPUS:85092898820

VL - 102

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 1

M1 - 012008

ER -

ID: 27904555