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

Authors

E. Kovalenko, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
A. Garmash, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
P. Krokovny, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
I. Adachi, The Graduate University for Advanced Studies
H. Aihara, The University of Tokyo
D. M. Asner, Brookhaven National Laboratory
V. Aulchenko, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
T. Aushev, HSE University
R. Ayad, University of Tabuk
V. Babu, Deutsches Elektronen-Synchrotron (DESY)
S. Bahinipati, Indian Institute of Technology Bhubaneswar
P. Behera, Indian Institute of Technology Madras
J. Bennett, University of Mississippi
M. Bessner, University of Hawaiʻi at Mānoa
T. Bilka, Charles University
J. Biswal, Jozef Stefan Institute
A. Bobrov, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
A. Bondar, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
G. Bonvicini, Wayne State University

Document Type

Article

Publication Date

12-1-2021

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.

Relational Format

journal article

Recommended Citation

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., … Belle Collaboration. (2021). Study of e + e − → ϒ (1 s , 2 s) η and e + e − → ϒ η(1 s) ′ at s = 10.866 GeV with the Belle detector. Physical Review D, 104(11), 112006. https://doi.org/10.1103/PhysRevD.104.112006

DOI

10.1103/PhysRevD.104.112006

Accessibility Status

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