Garra Ticó, JordiGraugés Pous, EugeniBABAR Collaboration2019-04-082019-04-082011-09-061550-7998https://hdl.handle.net/2445/131750We study the reactions e + e − → e + e − η ( ' ) in the single-tag mode and measure the γ γ ∗ → η ( ' ) transition form factors in the momentum-transfer range from 4 to 40     GeV 2 . 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.19 p.application/pdfeng(c) American Physical Society, 2011Física de partículesExperimentsParticle physicsExperimentsinfo:eu-repo/semantics/article6020052019-04-08info:eu-repo/semantics/openAccess