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arXiv 0911.4637hep-phnucl-th
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3 GeV/c以上的质子-质子散射

Proton-proton scattering above 3 GeV/c

A. Sibirtsev, J. Haidenbauer, H. -W. Hammer, S. Krewald, U. -G. Meißner

摘要:

利用Regge方法分析了大量的质子-质子微分截面、解析本领和双极化参数A_NN数据。我们发现,在质子束动量从3 GeV/c到50 GeV/c的数据表现出的功能,是非常好的Regge现象的一般特征,可以描述的模型,包括ρ,ω,f_2,和a_2轨迹和单坡密子交换。额外的数据,特别是前向角与自旋相关的可观测量,对于测试和改进我们的雷吉模型非常有帮助。

英文摘要:

A large set of data on proton-proton differential cross sections, analyzing powers and the double polarization parameter A_NN is analyzed employing the Regge formalism. We find that the data available at proton beam momenta from 3 GeV/c to 50 GeV/c exhibit features that are very well in line with the general characteristics of Regge phenomenology and can be described with a model that includes the rho, omega, f_2, and a_2 trajectories and single Pomeron exchange. Additional data, specifically for spin-dependent observables at forward angles, would be very helpful for testing and refining our Regge model.

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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