We study the reactions e+e-→e+e-η(′) in the single-tag mode and measure the γγ*→η(′) transition form factors in the momentum-transfer range from 4 to 40 GeV2. The analysis is based on 469 fb-1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e- center-of-mass energies near 10.6 GeV.
Measurement of the γγ∗−−>η and γγ∗−−>η′ transition form factors.
BIASINI, Maurizio;PACETTI, Simone;PERUZZI, Ida Marena
2011
Abstract
We study the reactions e+e-→e+e-η(′) in the single-tag mode and measure the γγ*→η(′) transition form factors in the momentum-transfer range from 4 to 40 GeV2. The analysis is based on 469 fb-1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e- center-of-mass energies near 10.6 GeV.File in questo prodotto:
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