Characterization of Cherenkov detectors for the MOLLER experiment

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2024-11-12 DOI:10.1016/j.nima.2024.170057

Sayak Chatterjee

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Abstract

The MOLLER (Measurement Of Lepton Lepton Electroweak Reaction) experiment is aiming to measure the parity-violating asymmetry (A

_{P V}

) in electron–electron (Møller) scattering with unprecedented precision. The flux of Møller scattered electrons from the liquid hydrogen target is measured using Cherenkov detectors and the longitudinal polarization of the incoming electron beam is rapidly flipped to extract the right-left fractional flux difference and thence A

_{P V}

. The Cherenkov detector prototypes were tested at the MAMI accelerator facility in Mainz, Germany with an electron beam of energy

\sim

855 MeV.

A brief overview of the experimental goals, design and performance of the prototype detectors with the electron beam are presented in this article.

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为 MOLLER 实验确定切伦科夫探测器的特性

莫勒（MOLLER）实验（Measurement Of Lepton Lepton Electroweak Reaction）旨在以前所未有的精度测量电子-电子（莫勒）散射中违反奇偶性的不对称（APV）。利用切伦科夫探测器测量来自液氢目标的莫勒散射电子的通量，并快速翻转进入的电子束的纵向极化，以提取左右分数通量差，进而提取 APV。切伦科夫探测器原型在德国美因茨的 MAMI 加速器设施中用能量为 855 MeV 的电子束进行了测试。本文简要介绍了实验目标、原型探测器的设计和电子束性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.

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