Study of the process e+e−→ ϕη at center-of-mass energies between 2.00 and 3.08 GeV

BESIII Collaboration; M. Ablikim; M.N. Achasov; P. Adlarson; S. Ahmed; M. Albrecht; R. Aliberti; A. Amoroso; Nasser Kalantar-Nayestanaki; Rosa Kappert; Myroslav Kavatsyuk; Johan Messchendorp; Viktor Rodin

doi:10.1103/PhysRevD.104.032007

Study of the process e⁺e⁻→ ϕη at center-of-mass energies between 2.00 and 3.08 GeV

BESIII Collaboration, M. Ablikim, M.N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht, R. Aliberti, A. Amoroso, Nasser Kalantar-Nayestanaki, Rosa Kappert, Myroslav Kavatsyuk, Johan Messchendorp, Viktor Rodin

Energy and Sustainability Research Institute Groningen

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Abstract

The process e+e−→ϕη is studied at 22 center-of-mass energy points (√s) between 2.00 and 3.08 GeV using 715 pb−1 of data collected with the BESIII detector. The measured Born cross section of e+e−→ϕη is found to be consistent with BABAR measurements, but with improved precision. A resonant structure around 2.175 GeV is observed with a significance of 6.9σ with mass (2163.5±6.2±3.0) MeV/c2 and width (31.1+21.1−11.6±1.1) MeV, where the first uncertainties are statistical and the second are systematic.

Original language	English
Article number	032007
Number of pages	11
Journal	Physical Review D
Volume	104
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.104.032007
Publication status	Published - 1-Aug-2021

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Study of the process e + e − → φη at center-of-mass energies between 2.00 and 3.08 GeVFinal publisher's version, 535 KBLicence: CC BY

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BESIII Collaboration, Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., Amoroso, A., Kalantar-Nayestanaki, N., Kappert, R., Kavatsyuk, M., Messchendorp, J., & Rodin, V. (2021). Study of the process e⁺e⁻→ ϕη at center-of-mass energies between 2.00 and 3.08 GeV. Physical Review D, 104(3), Article 032007. https://doi.org/10.1103/PhysRevD.104.032007

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title = "Study of the process e+e−→ ϕη at center-of-mass energies between 2.00 and 3.08 GeV",

abstract = "The process e+e−→ϕη is studied at 22 center-of-mass energy points (√s) between 2.00 and 3.08 GeV using 715 pb−1 of data collected with the BESIII detector. The measured Born cross section of e+e−→ϕη is found to be consistent with BABAR measurements, but with improved precision. A resonant structure around 2.175 GeV is observed with a significance of 6.9σ with mass (2163.5±6.2±3.0) MeV/c2 and width (31.1+21.1−11.6±1.1) MeV, where the first uncertainties are statistical and the second are systematic.",

author = "{BESIII Collaboration} and M. Ablikim and M.N. Achasov and P. Adlarson and S. Ahmed and M. Albrecht and R. Aliberti and A. Amoroso and Nasser Kalantar-Nayestanaki and Rosa Kappert and Myroslav Kavatsyuk and Johan Messchendorp and Viktor Rodin",

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BESIII Collaboration, Ablikim, M, Achasov, MN, Adlarson, P, Ahmed, S, Albrecht, M, Aliberti, R, Amoroso, A, Kalantar-Nayestanaki, N, Kappert, R, Kavatsyuk, M , Messchendorp, J & Rodin, V 2021, 'Study of the process e⁺e⁻→ ϕη at center-of-mass energies between 2.00 and 3.08 GeV', Physical Review D, vol. 104, no. 3, 032007. https://doi.org/10.1103/PhysRevD.104.032007

TY - JOUR

T1 - Study of the process e+e−→ ϕη at center-of-mass energies between 2.00 and 3.08 GeV

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M.N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Aliberti, R.

AU - Amoroso, A.

AU - Kalantar-Nayestanaki, Nasser

AU - Kappert, Rosa

AU - Kavatsyuk, Myroslav

AU - Messchendorp, Johan

AU - Rodin, Viktor

PY - 2021/8/1

Y1 - 2021/8/1

N2 - The process e+e−→ϕη is studied at 22 center-of-mass energy points (√s) between 2.00 and 3.08 GeV using 715 pb−1 of data collected with the BESIII detector. The measured Born cross section of e+e−→ϕη is found to be consistent with BABAR measurements, but with improved precision. A resonant structure around 2.175 GeV is observed with a significance of 6.9σ with mass (2163.5±6.2±3.0) MeV/c2 and width (31.1+21.1−11.6±1.1) MeV, where the first uncertainties are statistical and the second are systematic.

AB - The process e+e−→ϕη is studied at 22 center-of-mass energy points (√s) between 2.00 and 3.08 GeV using 715 pb−1 of data collected with the BESIII detector. The measured Born cross section of e+e−→ϕη is found to be consistent with BABAR measurements, but with improved precision. A resonant structure around 2.175 GeV is observed with a significance of 6.9σ with mass (2163.5±6.2±3.0) MeV/c2 and width (31.1+21.1−11.6±1.1) MeV, where the first uncertainties are statistical and the second are systematic.

U2 - 10.1103/PhysRevD.104.032007

DO - 10.1103/PhysRevD.104.032007

M3 - Article

SN - 1550-7998

VL - 104

JO - Physical Review D

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IS - 3

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