{"title":"为 MOLLER 实验确定切伦科夫探测器的特性","authors":"Sayak Chatterjee","doi":"10.1016/j.nima.2024.170057","DOIUrl":null,"url":null,"abstract":"<div><div>The MOLLER (Measurement Of Lepton Lepton Electroweak Reaction) experiment is aiming to measure the parity-violating asymmetry (A<span><math><msub><mrow></mrow><mrow><mi>P</mi><mi>V</mi></mrow></msub></math></span>) 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<span><math><msub><mrow></mrow><mrow><mi>P</mi><mi>V</mi></mrow></msub></math></span>. The Cherenkov detector prototypes were tested at the MAMI accelerator facility in Mainz, Germany with an electron beam of energy <span><math><mo>∼</mo></math></span> 855 MeV.</div><div>A brief overview of the experimental goals, design and performance of the prototype detectors with the electron beam are presented in this article.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1070 ","pages":"Article 170057"},"PeriodicalIF":1.5000,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Characterization of Cherenkov detectors for the MOLLER experiment\",\"authors\":\"Sayak Chatterjee\",\"doi\":\"10.1016/j.nima.2024.170057\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The MOLLER (Measurement Of Lepton Lepton Electroweak Reaction) experiment is aiming to measure the parity-violating asymmetry (A<span><math><msub><mrow></mrow><mrow><mi>P</mi><mi>V</mi></mrow></msub></math></span>) 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<span><math><msub><mrow></mrow><mrow><mi>P</mi><mi>V</mi></mrow></msub></math></span>. The Cherenkov detector prototypes were tested at the MAMI accelerator facility in Mainz, Germany with an electron beam of energy <span><math><mo>∼</mo></math></span> 855 MeV.</div><div>A brief overview of the experimental goals, design and performance of the prototype detectors with the electron beam are presented in this article.</div></div>\",\"PeriodicalId\":19359,\"journal\":{\"name\":\"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment\",\"volume\":\"1070 \",\"pages\":\"Article 170057\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-11-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0168900224009835\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168900224009835","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
Characterization of Cherenkov detectors for the MOLLER experiment
The MOLLER (Measurement Of Lepton Lepton Electroweak Reaction) experiment is aiming to measure the parity-violating asymmetry (A) 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. The Cherenkov detector prototypes were tested at the MAMI accelerator facility in Mainz, Germany with an electron beam of energy 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.
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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