Abstract

We study the process e+e-→e+e-η′ in the double-tag mode and measure for the first time the γ γ →η′ transition form factor Fη′(Q12,Q22) in the momentum-transfer range 2<Q12, Q22<60 GeV2. The analysis is based on a data sample corresponding to an integrated luminosity of around 469 fb-1 collected at the PEP-II e+e- collider with the BABAR detector at center-of-mass energies near 10.6 GeV.

Original languageEnglish
Article number112002
Number of pages11
JournalPhysical Review D
Volume98
Issue number11
DOIs
Publication statusPublished - 5 Dec 2018

Keywords

  • ELECTROMAGNETIC STRUCTURE
  • EXCLUSIVE PROCESSES
  • BABAR DETECTOR
  • DECAY MODES
  • SINGLE-TAG
  • PHOTON
  • E(+)E(-)
  • MESONS

Fingerprint

Dive into the research topics of 'Measurement of the γ∗γ∗ →η′ transition form factor'. Together they form a unique fingerprint.

Cite this