Measurement of the e(+)e(-) -> eta J/psi cross section and search for e(+)e(-) -> pi(0)J/psi at center-of-mass energies between 3.810 and 4.600 GeV

M. Ablikim*, M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht, D. J. Ambrose, A. Amoroso, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, D. W. Bennett, J. V. Bennett, M. Bertani, D. Bettoni, J. M. Bian, F. Bianchi, E. Boger, O. BondarenkoI. Boyko, R. A. Briere, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, H. Y. Chen, J. C. Chen, M. L. Chen, S. J. Chen, X. Chen, X. R. Chen, Y. B. Chen, H. P. Cheng, X. K. Chu, G. Cibinetto, D. Cronin-Hennessy, H. L. Dai, Z. Haddadi, N. Kalantar-Nayestanaki, M. Kavatsyuk, H. Loehner, J. G. Messchendorp, M. Tiemens, BESIII Collaboration

*Corresponding author voor dit werk

    OnderzoeksoutputAcademicpeer review

    54 Citaten (Scopus)
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    Samenvatting

    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(-) -> eta J/psi and pi(0)J/psi 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(-) -> eta J/psi shows an enhancement around 4.2 GeV. The measurement is compatible with an earlier measurement by Belle.

    Originele taal-2English
    Artikelnummer112005
    Aantal pagina's12
    TijdschriftPhysical Review D
    Volume91
    Nummer van het tijdschrift11
    DOI's
    StatusPublished - 9-jun.-2015

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