Observation of ψ(3686)→η′e+e−

Standard

Observation of ψ(3686)→η^′e⁺e⁻. / BESIII Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 783, 10.08.2018, p. 452-458.

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

Harvard

BESIII Collaboration 2018, 'Observation of ψ(3686)→η^′e⁺e⁻', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 783, pp. 452-458. https://doi.org/10.1016/j.physletb.2018.05.038

APA

BESIII Collaboration (2018). Observation of ψ(3686)→η^′e⁺e⁻. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 783, 452-458. https://doi.org/10.1016/j.physletb.2018.05.038

Vancouver

BESIII Collaboration. Observation of ψ(3686)→η^′e⁺e⁻. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 Aug 10;783:452-458. doi: 10.1016/j.physletb.2018.05.038

Author

BESIII Collaboration. / Observation of ψ(3686)→η^′e⁺e⁻. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 ; Vol. 783. pp. 452-458.

BibTeX

@article{47a2b4db47034b3fa0048beacb5c95a1,

title = "Observation of ψ(3686)→η′e+e−",

abstract = "Using a data sample of 448.1×106 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we report the first observation of the electromagnetic Dalitz decay ψ(3686)→η′e+e−, with significances of 7.0σ and 6.3σ when reconstructing the η′ meson via its decay modes η′→γπ+π− and η′→π+π−η (η→γγ), respectively. The weighted average branching fraction is determined to be B(ψ(3686)→η′e+e−)=(1.90±0.25±0.11)×10−6, where the first uncertainty is statistical and the second systematic.",

keywords = "BESIII, Charmonium, Dalitz decay, ee Annihilation, GENERATOR, KLOE DETECTOR, DECAYS, E(+)E(-), PHI, PSEUDOSCALAR, e(+)e(-) Annihilation, OMEGA, ETA-E(+)E(-)",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and M. Alekseev and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and K. Begzsuren and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni 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, {P. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and W. Cheng and Chu, {X. K.} and G. Cibinetto and F. Cossio and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",

note = "Publisher Copyright: {\textcopyright} 2018 The Author",

year = "2018",

month = aug,

day = "10",

doi = "10.1016/j.physletb.2018.05.038",

language = "English",

volume = "783",

pages = "452--458",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Observation of ψ(3686)→η′e+e−

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Alekseev, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

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, P. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, W.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

PY - 2018/8/10

Y1 - 2018/8/10

N2 - Using a data sample of 448.1×106 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we report the first observation of the electromagnetic Dalitz decay ψ(3686)→η′e+e−, with significances of 7.0σ and 6.3σ when reconstructing the η′ meson via its decay modes η′→γπ+π− and η′→π+π−η (η→γγ), respectively. The weighted average branching fraction is determined to be B(ψ(3686)→η′e+e−)=(1.90±0.25±0.11)×10−6, where the first uncertainty is statistical and the second systematic.

AB - Using a data sample of 448.1×106 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we report the first observation of the electromagnetic Dalitz decay ψ(3686)→η′e+e−, with significances of 7.0σ and 6.3σ when reconstructing the η′ meson via its decay modes η′→γπ+π− and η′→π+π−η (η→γγ), respectively. The weighted average branching fraction is determined to be B(ψ(3686)→η′e+e−)=(1.90±0.25±0.11)×10−6, where the first uncertainty is statistical and the second systematic.

KW - BESIII

KW - Charmonium

KW - Dalitz decay

KW - ee Annihilation

KW - GENERATOR

KW - KLOE DETECTOR

KW - DECAYS

KW - E(+)E(-)

KW - PHI

KW - PSEUDOSCALAR

KW - e(+)e(-) Annihilation

KW - OMEGA

KW - ETA-E(+)E(-)

UR - http://www.scopus.com/inward/record.url?scp=85050086120&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2018.05.038

DO - 10.1016/j.physletb.2018.05.038

M3 - Article

AN - SCOPUS:85050086120

VL - 783

SP - 452

EP - 458

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

ER -

ID: 15957682