# Two-photon exchange model for production of neutral meson pairs in $e^+ e^-$ annihilation

Abstract : A vector-dominance two-photon exchange model is proposed to explain the recently observed production of $\rho^0\rho^0$ and $\rho^0\phi$ pairs in $e^+e^-$ annihilation at 10.58 GeV with the BaBar detector. All the observed features of the data --angular and decay distributions, rates-- are in agreement with the model. Predictions are made for yet-unobserved final states.
Document type :
Preprints, Working Papers, ...

http://hal.in2p3.fr/in2p3-00084349
Contributor : Sabine Starita <>
Submitted on : Thursday, July 6, 2006 - 3:40:56 PM
Last modification on : Wednesday, September 16, 2020 - 4:25:14 PM

### Citation

M. Davier, M. Peskin, A. Snyder. Two-photon exchange model for production of neutral meson pairs in $e^+ e^-$ annihilation. 2006. ⟨in2p3-00084349⟩

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