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arXiv 0906.5589hep-ph
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色偶极子的实康普顿散射

Real Compton Scattering via Color Dipoles

B. Z. Kopeliovich, Ivan Schmidt, M. Siddikov

摘要:

在色偶极模型下研究了光吸收反应和真实康普顿散射。我们依赖于在瞬子真空模型中导出的光子波函数和依赖于能量的唯象弹性偶极子振幅。在高能量下的光吸收截面数据与我们的无参数计算结果一致。我们还提供了微分RCS截面的预测。虽然目前还没有小角度康普顿散射的数据,但这个过程可以在LHC的超周边强子碰撞和核碰撞中测量到。

英文摘要:

We study photoabsorption reaction and real Compton scattering (RCS) within the color dipole model. We rely on a photon wave function derived in the instanton vacuum model, and on the energy dependent phenomenological elastic dipole amplitude. Data for the photoabsorption cross section at high energies agree with our parameter free calculations. We also provide predictions for the differential RCS cross section. Although no data for small angle Compton scattering are available so far, this process can be measured in ultra-peripheral hadronic and nuclear collisions at the LHC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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