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

ZHOU Hai-Qing

doi:10.1088/1674-1137/34/6/042

Chinese Physics C> 2010, Vol. 34> Issue(6) : 869-873 DOI: 10.1088/1674-1137/34/6/042

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

ZHOU Hai-Qing ^,

Department of Physics, Southeast University, Nanjing 211189, China

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Abstract：
The two two-photon exchange corrections to the unpolarized cross section and polarized observable P_T, P_L 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^－→pp are also discussed.

References

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ZHOU Hai-Qing. Two-photon-exchange contribution to proton form factors in both space-like and time-like regions[J]. Chinese Physics C, 2010, 34(6): 869-873. doi: 10.1088/1674-1137/34/6/042

ZHOU Hai-Qing. Two-photon-exchange contribution to proton form factors in both space-like and time-like regions[J]. Chinese Physics C, 2010, 34(6): 869-873. doi: 10.1088/1674-1137/34/6/042 shu

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Received: 2010-01-26
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

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

ZHOU Hai-Qing ^,

Corresponding author: ZHOU Hai-Qing,

Department of Physics, Southeast University, Nanjing 211189, China

Received Date: 2010-01-26
Accepted Date: 1900-01-01
Available Online: 2010-06-05

Abstract:

The two two-photon exchange corrections to the unpolarized cross section and polarized observable P_T, P_L 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^－→pp are also discussed.