@article{a65b6666a1724d66ba658c97da822895,
title = "Search for direct production of the f1(1285) resonance in e+e− collisions",
abstract = "A search for direct production of the f1(1285) resonance in e+e− annihilation is performed with the SND detector at the VEPP-2000 e+e− collider. The analysis is based on data with an integrated luminosity of 15.1 pb−1 accumulated in the center-of-mass energy range 1.2–1.4 GeV. Two e+e−→f1(1285) candidate events are found at the peak of the resonance and zero events beyond the resonance. The significance of the e+e−→f1(1285) signal is 2.5σ. The cross section at the maximum of the resonance is found to be σ(e+e−→f1)=45−24 +33 pb. The corresponding branching fraction B(f1(1285)→e+e−)=(5.1−2.7 +3.7)×10−9. We consider this result as a first indication of the process e+e−→f1(1285). The measured branching fraction is consistent with the theoretical prediction.",
keywords = "SND, MESONS, SYSTEM",
author = "Achasov, {M. N.} and Barnyakov, {A. Yu} and Beloborodov, {K. I.} and Berdyugin, {A. V.} and Berkaev, {D. E.} and Bogdanchikov, {A. G.} and Botov, {A. A.} and Dimova, {T. V.} and Druzhinin, {V. P.} and Golubev, {V. B.} and Kardapoltsev, {L. V.} and Kasaev, {A. S.} and Kharlamov, {A. G.} and Koop, {I. A.} and Korol, {A. A.} and Kovrizhin, {D. P.} and Koshuba, {S. V.} and Kupich, {A. S.} and Litvinov, {R. A.} and Lysenko, {A. P.} and Martin, {K. A.} and Melnikova, {N. A.} and Muchnoi, {N. Yu} and Obrazovsky, {A. E.} and Pakhtusova, {E. V.} and Perevedentsev, {E. A.} and Pugachev, {K. V.} and Serednyakov, {S. I.} and Silagadze, {Z. K.} and Shatunov, {P. Yu} and Shatunov, {Yu M.} and Shtol, {D. A.} and Shwartz, {D. B.} and Surin, {I. K.} and Usov, {Yu V.} and Zemlyansky, {I. M.} and Zhabin, {V. N.} and Zhulanov, {V. V.}",
year = "2020",
month = jan,
day = "10",
doi = "10.1016/j.physletb.2019.135074",
language = "English",
volume = "800",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
}