We report the first observation of the processes e+e-→D(1S,2S)η at s=10.866 GeV, with significance exceeding 10σ for both processes. The measured Born cross sections are σ(e+e-→D(2S)η)=2.07±0.21±0.19 pb, and σ(e+e-→D(1S)η)=0.42±0.08±0.04 pb. We also set the upper limit on the cross section of the process e+e-→D(1S)η′ to be σ(e+e-→D(1S)η′)<0.037 pb at 90% C.L. The results are obtained with the data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider in the energy range from 10.63 to 11.02 GeV.

Study of e+e- → D (1 S,2 S)η and e+e- → D (1S)η′ at s =10.866 GeV with the Belle detector / Kovalenko, E., Garmash, A., Krokovny, P., Adachi, I., Aihara, H., Asner, D.M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bilka, T., Biswal, J., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 104:11(2021). [10.1103/PhysRevD.104.112006]

Study of e+e- → D (1 S,2 S)η and e+e- → D (1S)η′ at s =10.866 GeV with the Belle detector

Campajola M.;De Nardo G.;Di Capua F.;Merola M.;Russo G.;
2021

Abstract

We report the first observation of the processes e+e-→D(1S,2S)η at s=10.866 GeV, with significance exceeding 10σ for both processes. The measured Born cross sections are σ(e+e-→D(2S)η)=2.07±0.21±0.19 pb, and σ(e+e-→D(1S)η)=0.42±0.08±0.04 pb. We also set the upper limit on the cross section of the process e+e-→D(1S)η′ to be σ(e+e-→D(1S)η′)<0.037 pb at 90% C.L. The results are obtained with the data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider in the energy range from 10.63 to 11.02 GeV.
2021
Study of e+e- → D (1 S,2 S)η and e+e- → D (1S)η′ at s =10.866 GeV with the Belle detector / Kovalenko, E., Garmash, A., Krokovny, P., Adachi, I., Aihara, H., Asner, D.M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bilka, T., Biswal, J., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 104:11(2021). [10.1103/PhysRevD.104.112006]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/885390
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