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arXiv 0810.1275hep-ph
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强子-核子散射中可能的Odderon效应

Possible Odderon Effects in Hadron-Nucleon Scattering

C. Merino, M. M. Ryzhinskiy, Yu. M. Shabelski

摘要:

我们考虑了Odderon交换(Reggeon with α_{Odd}(0)\sim 1 and negative signature)对粒子和反粒子总截面之差、弹性pp振幅的实部/虚部之比以及中心区粒子和反粒子包容谱之差的可能贡献。粒子和反粒子总截面的实验差异与Odderon分量的存在是一致的,但如此大的Odderon贡献似乎与Re/Im比值不一致。在包含粒子和反粒子产生的情况下,目前的能量和/或实验数据的准确性不允许明确的结论。

英文摘要:

We consider the possible contribution of Odderon (Reggeon with α_{Odd}(0) \sim 1 and negative signature) exchange to the differences in the total cross sections of particle and antiparticle, to the ratios of real/imaginary parts of the elastic pp amplitude, and to the differences in the inclusive spectra of particle and antiparticle in the central region. The experimental differences in total cross sections of particle and antiparticle are compatible with the existence of the Odderon component but such a large Odderon contribution seems to be inconsistent with the values of Re/Im ratios. In the case of inclusive particle and antiparticle production the current energies and/or accuracy of the experimental data don't allow a clear conclusion.

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