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arXiv 1106.4887hep-phnucl-th
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$\bar{p}d$相互作用截面与Nijmegen势的自旋相关部分

Spin-dependent part of $\bar{p}d$ interaction cross section and Nijmegen potential

S. G. Salnikov

摘要:

低能$\bar{p}d$相互作用被认为是考虑到两个粒子的极化。相应的截面由考虑阴影效应的奈梅亨核子-反核子光学势求得。在Glauber方法内计算双散射效应,发现约为10- 20%。应用该截面分析了储存反质子与极化靶相互作用产生的极化积累。它示出,在现实的参数的存储环和目标,过滤机制可以提供一个显着的偏振在一个时间与束寿命相媲美。氘靶的极化率与能量的关系与氢靶相似。然而,氘的极化时间比氢的极化时间小得多。

英文摘要:

Low energy $\bar{p}d$ interaction is considered taking into account the polarization of both particles. The corresponding cross sections are obtained using the Nijmegen nucleon-antinucleon optical potential with shadowing effects taken into account. Double-scattering effects are calculated within the Glauber approach and found to be about 10-20%. The cross sections are applied to the analysis of the polarization buildup which is due to the interaction of stored antiprotons with a polarized target. It is shown that, at realistic parameters of a storage ring and a target, the filtering mechanism may provide a noticeable polarization in a time comparable with the beam lifetime. The energy dependence of the polarization rate for deuterium target is similar to that for hydrogen one. However, the time of polarization for deuterium is much smaller than that for hydrogen.

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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