Chinese Physics C > 1984, Vol. 8 > Issue(5): 539-547

QCD PREDICTION FOR THE REACTION γ+p→2γ+X

LUO Ma^,

Nankai University

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Abstract：

In the framework of the perturbative QCD, the two-fold differential cross section d²σ/dx_Tdx_Lof 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 (x_T, x_L), the calculated reaction cross section can be measured in current laboratory condition. And due to the properties of this reaction, i.e., largep_Tphotoproduction and direct photon pair emission, all of the backgrounds can be greatly suppressed.

References

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E. Amaldi et al., Phys. Lett., 77B (1978), 240;84B (1979) 360; Phys. Lett., B150 (1979), 326;J. H. Cobb et al., Phys. Lett., 78B (1978), 519;R. M. Baltrusaitis et al., Phys. Lett., 88B (1979), 372;M. Diakonon et al., Phys. Lett., 87B ( 1979), 292;Phys. Lett., 91B (1980), 296.[2] C. Carimalo et al.,Phys. Lett., 98B (1981), 105.[3] J. F. Owens, Phys. Rev., D21 (1980), 54.[4] D. Treille and P. Weilhammer, Private Communication With T. S. Tu[5] H. Feitesch and P. Minkowski, Phys. Lett., 69B (19771, 316.[6] Tung-Sheng TU and Chi-min WU, Nucl. Phys., B156 (1979), 493.[7] A. J. Buras and K. J. P. Gaemers, Nucl. Phys., B132 (1978), 249.[8] C. H. Llewellyn Smith, Phys. Lett., 79B ( 1978), 83.[9] W. A. Bardeen and A. J. Buras, Ferrnilab PUB 79-91 (1978).[10] R. D. Field and R. P. Feynman, Nucl. Phys., B136 (1978), 1[11] Katsuji JGUCHI and Akira NIEGAWA, Prog Tlzeor. Phys., Vol. 64 No. 3 (1980), 1093.

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LUO Ma. QCD PREDICTION FOR THE REACTION γ+p→2γ+X[J]. Chinese Physics C, 1984, 8(5): 539-547.

LUO Ma. QCD PREDICTION FOR THE REACTION γ+p→2γ+X[J]. Chinese Physics C, 1984, 8(5): 539-547. shu

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Received: 1900-01-01
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

QCD PREDICTION FOR THE REACTION γ+p→2γ+X

LUO Ma^,

Corresponding author:LUO Ma,

Nankai University

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/dx_Tdx_Lof 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 (x_T, x_L), the calculated reaction cross section can be measured in current laboratory condition. And due to the properties of this reaction, i.e., largep_Tphotoproduction and direct photon pair emission, all of the backgrounds can be greatly suppressed.