Two-photon-exchange contribution to proton form factors in both space-like and time-like regions

2010 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd
, , Citation Zhou Hai-Qing 2010 Chinese Phys. C 34 869 DOI 10.1088/1674-1137/34/6/042

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1 Department of Physics, Southeast University, Nanjing 211189, China

Dates

  1. Received 26 January 2010
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1674-1137/34/6/869

Abstract

The two two-photon exchange corrections to the unpolarized cross section and polarized observable PT, PL in elastic ep scattering are discussed in a simple hadronic model. Comparing with previous results, the Δ contribution are re-analysed. And the similar corrections in e+e− → pbar p are also discussed.

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