e+e- → π+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
We 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- e +e- center-of-mass energy, so that these data...
Main Authors: | Aubert, B, Barate, R, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, J, Poireau, V, Tisserand, V, Zghiche, A, Grauges-Pous, E, Palano, A, Pompili, A, Chen, J, Qi, N, Rong, G, Wang, P, Zhu, Y, Eigen, G, Ofte, I, Stugu, B, Abrams, G, Borgland, A, Breon, AB, Brown, D, Button-Shafer, J |
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Format: | Journal article |
Language: | English |
Published: |
2005
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