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Measurement of the e+e- → ηJ/ψ cross section and search for e+e- → π0J/ψ at center-of-mass energies between 3.810 and 4.600 GeV M. Ablikim, M. N. Achasov, X. C. Ai [et.al.]
Material type: ArticleSubject(s): BESIII, детектор | BEPCII, коллайдер | центр массGenre/Form: статьи в журналах Online resources: Click here to access online In: Physical Review D Vol. 91, № 11. P.112005-1-112005-12Abstract: Using data samples collected with the BESIII detector operating at the BEPCII collider at 17 center-of-mass energies from 3.810 to 4.600 GeV, we perform a study of e+e−→ηJ/ψ and π0J/ψ. The Born cross sections of these two processes are measured at each center-of-mass energy. The measured energy-dependent Born cross section for e+e−→ηJ/ψ shows an enhancement around 4.2 GeV. The measurement is compatible with an earlier measurement by Belle.No physical items for this record
Using data samples collected with the BESIII detector operating at the BEPCII collider at 17 center-of-mass energies from 3.810 to 4.600 GeV, we perform a study of e+e−→ηJ/ψ and π0J/ψ. The Born cross sections of these two processes are measured at each center-of-mass energy. The measured energy-dependent Born cross section for e+e−→ηJ/ψ shows an enhancement around 4.2 GeV. The measurement is compatible with an earlier measurement by Belle.
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