Study of the reactions
Name
PhysRevD.98.112015.pdf
Size
3.96 MB
Format
Adobe PDF
Checksum (MD5)
3015d6388ec7265378877bb4776aa9fd
Author(s)
Lees, J. P.
Poireau, V.
Tisserand, V.
Grauges, E.
Palano, A.
Eigen, G.
Brown, D. N.
Kolomensky, Yu. G.
Fritsch, M.
Koch, H.
Date Issued
December 2018
Journal
Physical Review D
Publisher
American Physical Society
Version
Final published version
Abstract
We study the processes e^{+}e^{-}→π^{+}π^{-}π^{0}π^{0}π^{0}γ and π^{+}π^{-}π^{0}π^{0}ηγ in which an energetic photon is radiated from the initial state. The data are collected with the BABAR detector at SLAC. About 14 000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb^{-1}. The invariant mass of the hadronic final state defines the effective e^{+}e^{-} center-of-mass energy. From the mass spectra, the first precise measurement of the e^{+}e^{-}→π^{+}π^{-}π^{0}π^{0}π^{0} cross section and the first measurement ever of the e^{+}e^{-}→π^{+}π^{-}π^{0}π^{0}η cross section are performed. The center-of-mass energies range from threshold to 4.35 GeV. The systematic uncertainty is typically between 10% and 13%. The contributions from ωπ^{0}π^{0}, ηπ^{+}π^{-}, and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevD.98.112015
