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arXiv physics/0504183physics.acc-ph
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存储的$p$和$\bar p$光束与偏振目标相互作用的偏振机制

Polarizing mechanisms for stored $p$ and $\bar p$ beams interacting with a polarized target

A. I. Milstein, V. M. Strakhovenko

摘要:

被认为是在存储的质子(反质子)与极化目标的相互作用的极化建设的动力学。结果表明,对于小的散射角,当一个弹丸仍然在光束中,极化建立完全是由于自旋翻转过渡。相应的截面对于氢气靶以及对于纯电子靶来说都小得可以忽略。对于后者,滤波机制也不提供明显的光束偏振。

英文摘要:

Kinetics of the polarization buildup at the interaction of stored protons (antiprotons) with a polarized target is considered. It is demonstrated that for small scattering angles, when a projectile remains in the beam, the polarization buildup is completely due to the spin-flip transitions. The corresponding cross sections turn out to be negligibly small for a hydrogen gas target as well as for a pure electron target. For the latter, the filtering mechanism also does not provide a noticeable beam polarization.

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