MOLLER Source and Beam Control for Parity Experiments

即将到来的MOLLER实验旨在以前所未有的灵敏度探测基本相互作用，以发现标准模型之外的新物理。MOLLER是一个非常精确的实验，其中高能电子束将被引导到液氢靶中的电子。 电子束中的电子将在一个方向上极化，然后翻转180度。 通过比较电子在一个极化方向与另一个极化方向上的散射率，该实验对可能存在于标准模型之外的新粒子敏感。 该奖项支持对实现所需极化和极化翻转至关重要的研究。 一个补充的研究组成部分是为拟议的COIN实验开发一个详细的设计，该实验将研究质子中的奇异夸克含量。 该研究计划将侧重于模拟，旨在为COIN实验开发详细的设计。该计划将教育高中生和本科生基本的激光实验室技能，并培养博士后和研究生成为奇偶校验实验光束控制的世界专家。PI致力于支持未来科学家的教育，创造和维持一个积极，包容，安全和专业的研究和培训环境。PI旨在支持本科生参与研究，包括来自代表性不足群体的本科生或高中生。PI打算让研究小组的成员参加IU Physics的推广计划。即将在杰斐逊实验室（Jefferson Laboratory）进行的MOLLER实验的目的是在低能量和高能量尺度上以前所未有的灵敏度探测电弱相互作用，以发现新的超越标准模型的动力学。MOLLER是一个非常精确的宇称违反电子散射（PVES）实验，旨在寻找电子-电子散射中的新中性电流。这项研究计划是必不可少的实现奇偶校验质量的光束MOLLER，以满足其严格的系统不确定性的目标所产生的光束不对称。 在这个项目中的研究的主要推力是即将到来的MOLLER实验的电子束控制。这项工作将涉及在杰斐逊实验室的光束研究，极化源的努力，并在MOLLER运行1光束不对称的管理。其他补充努力包括拟议的COIN实验。COIN实验（英语：COIN experiment）是杰斐逊实验室提出的一项实验，通过测量弹性纵向极化束电子-质子散射中的宇称违反不对称性（PVA）来寻找2.5（GeV/c）2质子的非零奇异形状因子。研究目标包括致力于模拟工作，为杰斐逊实验室提出的COIN实验开发详细设计，以寻找质子的非零奇怪形状因子，该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响进行评估来支持审查标准。

The upcoming MOLLER experiment is designed to probe fundamental interactions with unprecedented sensitivity to discover new physics beyond the Standard Model. MOLLER is an extremely precise experiment in which a high energy electron beam will be directed at electrons contained in a liquid hydrogen target. The electrons in the beam will be polarized in one direction and then flipped 180 degrees. By comparing the rate that electrons scatter with one polarization direction to the other, the experiment is sensitive to new particles that might exist beyond the Standard Model. This award supports research that is essential for achieving the required polarization and flipping of that polarization. A complementary research component is to develop a detailed design for the proposed COIN experiment that will investigate the strange quark content of protons. This research program will focus on simulations with the aim of developing detailed designs for the COIN experiment. This program will educate both high school students and undergraduates in fundamental laser laboratory skills and train postdoc and graduate students to become world experts in parity experiment beam control. The PI is committed to supporting the education of future scientists and creating and sustaining a positive, inclusive, safe, and professional research and training environment. The PI intends to support undergraduate participation in research, including an undergraduate or high school student from an underrepresented group. The PI intends to have members of the research group participate in outreach programs at IU Physics. The aim of the upcoming MOLLER experiment at Jefferson Laboratory, a national accelerator facility, is to probe electroweak interactions with unprecedented sensitivity reach at both low and high energy scales to discover new beyond the Standard Model dynamics. MOLLER is an extremely precise parity violating electron scattering (PVES) experiment searching for new neutral currents in electron-electron scattering. This research program is essential for the achieving parity quality beam for MOLLER to meet its stringent systematic uncertainty goals arising from beam asymmetries. The main thrust of the research in this project is electron beam control for the upcoming MOLLER experiment. This effort will involve beam studies at Jefferson Lab, polarized source efforts, and management of beam asymmetries during MOLLER Run 1. Additional complementary efforts include efforts on the proposed COIN experiment. The COIN experiment is a proposed experiment at Jefferson Laboratory to search for a nonzero strange form factor of the proton at 2.5 (GeV/c)2 via a measurement of the parity-violating asymmetry (PVA) in elastic longitudinally polarized beam electron-proton scattering. Research goals include devoting simulation efforts towards development of a detailed design for the proposed COIN experiment at Jefferson Laboratory to search for a nonzero strange form factor of the proton, building on expertise in parity violation to work through experimental details of the measurement.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.