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arXiv 0903.2907hep-phphysics.acc-ph
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超级$B$工厂(意大利)的光束尺寸效应和粒子损失

Beam-size effect and particle losses at Super$B$ factory (Italy)

G. L. Kotkin, V. G. Serbo

摘要:

在对撞机中,宏观上大的碰撞参量给$e^+ e^- \to e^+ e^- γ$过程的标准横截面的实质性贡献。这些碰撞参量可以比碰撞束的横向尺寸大得多。这意味着该工艺的标准截面必须进行实质性修改。在本文中,这样的束流尺寸效应计算的轫致辐射在超级$B$工厂在意大利开发。我们发现,这种效果减少了约40%,由于韧致辐射束的损失。

英文摘要:

In the colliders, the macroscopically large impact parameters give a substantial contribution to the standard cross section of the $e^+ e^- \to e^+ e^- γ$ process. These impact parameters may be much larger than the transverse sizes of the colliding bunches. It means that the standard cross section of this process has to be substantially modified. In the present paper such a beam-size effect is calculated for bremsstrahlung at Super$B$ factory developed in Italy. We find out that this effect reduces beam losses due to bremsstrahlung by about 40%.

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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