QCD PREDICTION FOR THE REACTION γ+p→2γ+X
- Received Date: 1900-01-01
- Accepted Date: 1900-01-01
- Available Online: 1984-10-05
Abstract:
In the framework of the perturbative QCD, the two-fold differential cross section d2σ/dxTdxL of the reaction γ+p→2γ+X and its two backgrounds (γ+p→γ++X, γ+p→γ+
+X) are calculated in c.m.s.. The results show that, in a large range of (xT, xL), the calculated reaction cross section can be measured in current laboratory condition. And due to the properties of this reaction, i.e., large pT photoproduction and direct photon pair emission, all of the backgrounds can be greatly suppressed.