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Cross sections for the reactions e+e−→K0SK0Lπ0, K0SK0Lη, and K0SK0Lπ0π0 from events with initial-state radiation

By L. Lanceri and L. Vitale


We study the processes e+e−→K0SK0Lπ0γ, K0SK0Lηγ, and K0SK0Lπ0π0γ, where the photon is radiated from the initial state, providing cross section measurements for the hadronic final states over a continuum of center-of-mass energies. The results are based on 469  fb−1 of data collected at or near the Υ(4S) resonance with the BABAR detector at SLAC. We present the first measurements of the e+e−→K0SK0Lπ0, K0SK0Lη, and K0SK0Lπ0π0 cross sections up to a center-of-mass energy of 4 GeV and study their intermediate resonance structures. We observe J/ψ decays to all of these final states for the first time, present measurements of their J/ψ branching fractions, and search for ψ(2S) decays

Topics: Physics and Astronomy (miscellaneous), BaBar, PEP-II, Initial state radiation
Year: 2017
DOI identifier: 10.1103/PhysRevD.95.052001
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