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Measurement of cross sections for e+e- →μ+μ- At center-of-mass energies from 3.80 to 4.60 GeV. / BESIII Collaboration.

In: Physical Review D, Vol. 102, No. 11, 112009, 16.12.2020.

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Harvard

BESIII Collaboration 2020, 'Measurement of cross sections for e+e- →μ+μ- At center-of-mass energies from 3.80 to 4.60 GeV', Physical Review D, vol. 102, no. 11, 112009. https://doi.org/10.1103/PhysRevD.102.112009

APA

BESIII Collaboration (2020). Measurement of cross sections for e+e- →μ+μ- At center-of-mass energies from 3.80 to 4.60 GeV. Physical Review D, 102(11), [112009]. https://doi.org/10.1103/PhysRevD.102.112009

Vancouver

BESIII Collaboration. Measurement of cross sections for e+e- →μ+μ- At center-of-mass energies from 3.80 to 4.60 GeV. Physical Review D. 2020 Dec 16;102(11):112009. doi: 10.1103/PhysRevD.102.112009

Author

BESIII Collaboration. / Measurement of cross sections for e+e- →μ+μ- At center-of-mass energies from 3.80 to 4.60 GeV. In: Physical Review D. 2020 ; Vol. 102, No. 11.

BibTeX

@article{07bb5674a0d54c6199a02d471ef93c92,
title = "Measurement of cross sections for e+e- →μ+μ- At center-of-mass energies from 3.80 to 4.60 GeV",
abstract = "The observed cross sections for e+e-→μ+μ- at energies from 3.8 to 4.6 GeV are measured using data samples taken with the BESIII detector operated at the BEPCII collider. We measure the muonic widths and determine the branching fractions of the charmonium states ψ(4040), ψ(4160), and ψ(4415) decaying to μ+μ-, as well as making a first determination of the phase of the amplitudes. In addition, we observe evidence for a structure in the dimuon cross section near 4.220 GeV/c2, which we denote as S(4220). Analyzing a coherent sum of amplitudes yields eight solutions, one of which gives a mass of MS(4220)=4216.7±8.9±4.1 MeV/c2, a total width of ΓS(4220)tot=47.2±22.8±10.5 MeV, and a muonic width of ΓS(4220)μμ=1.53±1.26±0.54 keV, where the first uncertainties are statistical and the second systematic. The eight solutions give the central values of the mass, total width, muonic width to be, respectively, in the range from 4212.8 to 4219.4 MeV/c2, from 36.4 to 49.6 MeV, and from 1.09 to 1.53 keV. The statistical significance of the S(4220) signal is 3.9σ. Correcting the total dimuon cross section for radiative effects yields a statistical significance for this structure of 8.1σ.",
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 {Baldini Ferroli}, R. and I. Balossino and Y. Ban and K. Begzsuren and Bennett, {J. V.} and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat and J. Bloms and A. Bortone 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 Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and Chen, {D. Y.} and G. Chen and Chen, {H. S.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and W. Cheng and G. Cibinetto and F. Cossio and Cui, {X. F.} and Dai, {H. L.} and Dai, {J. P.} and Dai, {X. C.} and A. Dbeyssi and {De Boer}, {R. B.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
note = "Funding Information: The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contracts No. 2015CB856700, No. 2009CB825204; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11822506, No. 11835012, No. 11961141012, No. 10935007; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1532257, No. U1532258, No. U1732263, No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003, No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS, CAS Other Research Program under Code No. Y129360; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contracts No. Collaborative Research Center CRC 1044, FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054, No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, No. DE-SC-0012069. Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2020",
month = dec,
day = "16",
doi = "10.1103/PhysRevD.102.112009",
language = "English",
volume = "102",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "11",

}

RIS

TY - JOUR

T1 - Measurement of cross sections for e+e- →μ+μ- At center-of-mass energies from 3.80 to 4.60 GeV

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 - Baldini Ferroli, R.

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, J. V.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Biernat, J.

AU - Bloms, J.

AU - Bortone, A.

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 - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, W.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dai, X. C.

AU - Dbeyssi, A.

AU - De Boer, R. B.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

N1 - Funding Information: The BESIII collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by National Key Basic Research Program of China under Contracts No. 2015CB856700, No. 2009CB825204; National Natural Science Foundation of China (NSFC) under Contracts No. 11625523, No. 11635010, No. 11735014, No. 11822506, No. 11835012, No. 11961141012, No. 10935007; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1532257, No. U1532258, No. U1732263, No. U1832207; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003, No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS, CAS Other Research Program under Code No. Y129360; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contracts No. Collaborative Research Center CRC 1044, FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Science and Technology fund; STFC (United Kingdom); The Knut and Alice Wallenberg Foundation (Sweden) under Contract No. 2016.0157; The Royal Society, UK under Contracts No. DH140054, No. DH160214; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, No. DE-SC-0012069. Publisher Copyright: © 2020 authors. Published by the American Physical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/12/16

Y1 - 2020/12/16

N2 - The observed cross sections for e+e-→μ+μ- at energies from 3.8 to 4.6 GeV are measured using data samples taken with the BESIII detector operated at the BEPCII collider. We measure the muonic widths and determine the branching fractions of the charmonium states ψ(4040), ψ(4160), and ψ(4415) decaying to μ+μ-, as well as making a first determination of the phase of the amplitudes. In addition, we observe evidence for a structure in the dimuon cross section near 4.220 GeV/c2, which we denote as S(4220). Analyzing a coherent sum of amplitudes yields eight solutions, one of which gives a mass of MS(4220)=4216.7±8.9±4.1 MeV/c2, a total width of ΓS(4220)tot=47.2±22.8±10.5 MeV, and a muonic width of ΓS(4220)μμ=1.53±1.26±0.54 keV, where the first uncertainties are statistical and the second systematic. The eight solutions give the central values of the mass, total width, muonic width to be, respectively, in the range from 4212.8 to 4219.4 MeV/c2, from 36.4 to 49.6 MeV, and from 1.09 to 1.53 keV. The statistical significance of the S(4220) signal is 3.9σ. Correcting the total dimuon cross section for radiative effects yields a statistical significance for this structure of 8.1σ.

AB - The observed cross sections for e+e-→μ+μ- at energies from 3.8 to 4.6 GeV are measured using data samples taken with the BESIII detector operated at the BEPCII collider. We measure the muonic widths and determine the branching fractions of the charmonium states ψ(4040), ψ(4160), and ψ(4415) decaying to μ+μ-, as well as making a first determination of the phase of the amplitudes. In addition, we observe evidence for a structure in the dimuon cross section near 4.220 GeV/c2, which we denote as S(4220). Analyzing a coherent sum of amplitudes yields eight solutions, one of which gives a mass of MS(4220)=4216.7±8.9±4.1 MeV/c2, a total width of ΓS(4220)tot=47.2±22.8±10.5 MeV, and a muonic width of ΓS(4220)μμ=1.53±1.26±0.54 keV, where the first uncertainties are statistical and the second systematic. The eight solutions give the central values of the mass, total width, muonic width to be, respectively, in the range from 4212.8 to 4219.4 MeV/c2, from 36.4 to 49.6 MeV, and from 1.09 to 1.53 keV. The statistical significance of the S(4220) signal is 3.9σ. Correcting the total dimuon cross section for radiative effects yields a statistical significance for this structure of 8.1σ.

UR - http://www.scopus.com/inward/record.url?scp=85098223751&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.102.112009

DO - 10.1103/PhysRevD.102.112009

M3 - Article

AN - SCOPUS:85098223751

VL - 102

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 11

M1 - 112009

ER -

ID: 27775455