The BABAR Collaboration, B. Aubert
Published 2006-02-02Version 1
We study the processes e+ e- --> 3(pi+pi-)gamma, 2(pi+pi-pi0)gamma and K+ K- 2(pi+pi-)gamma, with the photon radiated from the initial state. About 20,000, 33,000 and 4,000 fully reconstructed events, respectively, have been selected from 232 fb-1 of BaBar data. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy, so that these data can be compared with the corresponding direct e+e- measurements. From the 3(pi+pi-), 2(pi+pi-pi0) and K+ K- 2(pi+pi-) mass spectra, the cross sections for the processes e+ e- --> 3(pi+pi-), e+ e- --> 2(pi+pi-pi0) and e+ e- --> K+ K- 2(pi+pi-) are measured for center-of-mass energies from production threshold to 4.5 GeV. The uncertainty in the cross section measurement is typically 6-15%. We observe the J/psi in all these final states and measure the corresponding branching fractions.
Comments: 26 pages, 30 postscript figues, submitted to Physical Review D
Journal: Phys.Rev.D73:052003,2006
The $\epem\toπ^+π^-π^+π^-$, $K^+K^-π^+π^-$, and $K^+K^- K^+K^- $ Cross Sections at Center-of-Mass Energies 0.5--4.5 \gev Measured with Initial-State Radiation
Measurement of the e+e- --> D0D*-pi+ cross section using initial-state radiation
Cross sections for the reactions $e^+ e^-\to K^0_S K^0_Lπ^0$, $K^0_S K^0_Lη$, and $K^0_S K^0_Lπ^0π^0$ from events with initial-state radiation
