MESA P2实验用双散射偏振计

Proceedings of XVII International Workshop on Polarized Sources, Targets & Polarimetry — PoS(PSTP2017) Pub Date : 2016-05-10 DOI:10.22323/1.243.0030

M. Molitor, K. Aulenbacher

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引用次数: 0

摘要

在新的美因茨能量回收超导加速器(MESA)上进行的P2实验旨在高精度地测量低Q $^2$下的弱混合角$\sin^2 \theta_\text{W}$。因此，入射电子束的极化必须以非常高的精度(< 0.5 %). A conventional Mott-polarimeter requires a lot of effort in calibration to be able to acieve this goal. A Double Scattering Polarimeter (DSP) promises to meet these requirements with less effort.

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A Double scattering polarimeter for the P2 experiment at MESA

The P2 Experiment at the new Mainz Energy-recovering Superconducting Accelerator (MESA) aims at measuring the weak mixing angle $\sin^2 \theta_\text{W}$ at low Q$^2$ with high precision. Therefore the polarization of the incident electron beam has to be known with a very high accuracy (< 0.5 %). A conventional Mott-polarimeter requires a lot of effort in calibration to be able to acieve this goal. A Double Scattering Polarimeter (DSP) promises to meet these requirements with less effort.

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Proceedings of XVII International Workshop on Polarized Sources, Targets & Polarimetry — PoS(PSTP2017)

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