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arXiv 0707.2222hep-ph
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在非常向前的$pp$弹性散射中分析功率$A_N$的冲击图

Impact picture for the analyzing power $A_N$ in very forward $pp$ elastic scattering

Claude Bourrely, Jacques Soffer, Tai Tsun Wu

摘要:

在碰撞图像的框架下,我们计算了在高能量和非常向前的方向上的$pp$弹性散射的分析功率$A_N$。我们认为,全套的库仑振幅和强子非翻转振幅和单翻转库仑振幅之间的干扰是足够的,以获得与目前的实验数据很好的协议。这使我们得出结论,在这个低动量转移区的单翻转强子振幅是小的,它强烈地表明,这一过程可以被用作在BNL-RHIC $pp$对撞机的绝对旋光计。

英文摘要:

In the framework of the impact picture we compute the analyzing power $A_N$ for $pp$ elastic scattering at high energy and in the very forward direction. We consider the full set of Coulomb amplitudes and show that the interference between the hadronic non-flip amplitude and the single-flip Coulomb amplitude is sufficient to obtain a good agreement with the present experimental data. This leads us to conclude that the single-flip hadronic amplitude is small in this low momentum transfer region and it strongly suggests that this process can be used as an absolute polarimeter at the BNL-RHIC $pp$ collider.

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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