Using 116.1 fb(-1) of data collected by the BABAR detector, we present an analysis of xi(c)(0) production in B decays and from the cc continuum, with the xi(c)(0) decaying into omega- K+ and xi- pi+ final states. We measure the ratio of branching fractions B(xi(c)(0) --> omega- K+)/B(xi(c)(0) --> xi- pi+) spectrum is measured on and 40 MeV below the upsilon(4S) resonance. From these spectra the branching fraction product B(B --> xi(c)(0)X) x B(xi(c)(0) --> xi- pi+) is measured to be (2.11 +/- 0.19 +/- 0.25) x 10(-4), and the cross-section product sigma(e+ e- --> xi(c)(0)X) x B(xi(c)(0) --> xi- pi+) from the continuum is measured to be (388 +/- 39 +/- 41) fb at a center-of-mass energy of 10.58 GeV.

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The e + e − → pp cross-section is determined over a range of pp masses, from threshold to 4.5 GeV/c 2 , by studying the e + e − → ppγ process. The data set corresponds to an integrated luminosity of 232 fb −1 , collected with the BABAR detector at the PEP-II storage ring, at an e + e − center-of-mass energy of 10.6 GeV. The mass dependence of the ratio of electric and magnetic form factors, |GE /GM |, is measured for pp masses below 3 GeV/c 2 ; its value is found to be significantly larger than 1 for masses up to 2.2 GeV/c 2 . We also measure J/ψ → pp and ψ(2S) → pp branching fractions and set an upper limit on Y (4260) → pp production and decay.

6We study the process e + e − → π + π − π + π − γ, with a hard photon radiated from the initial state. About 60,000 fully reconstructed events have been selected from 89 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 4π-mass spectrum, the cross section for the process e + e − → π + π − π + π − is measured for center-of-mass energies from 0.6 to 4.5 GeV. The uncertainty in the cross section measurement is typically 5%. We also measure the cross sections for the final states K + K − π + π − and K + K − K + K − . We observe the J/ψ in all three final states and measure the corresponding branching fractions. We search for X(3872) in J/ψ(→ µ + µ − )π + π − and obtain an upper limit on the product of the e + e − width of the X(3872) and the branching fraction for X(3872) → J/ψπ + π − .

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