Particle Physics at CMS in the High Luminosity Era

该研究项目旨在通过探索自然界的基本对称性及其与质量起源的关系，更好地了解最小尺度下的宇宙。2012年发现的质量接近125 GeV的希格斯玻色子代表了粒子物理学标准模型的最高成就，也暗示了超越标准模型的一个暗示--如果没有新的、未被发现的物理学，一个轻的希格斯玻色子怎么可能在巨大的、不稳定的量子效应中生存下来？此外，暗物质是已知存在的天文观测;然而，暗物质的粒子性质仍然笼罩在神秘之中。康奈尔大学小组的联合活动解决了这些困扰科学的基本问题-质量的起源和暗物质的粒子性质-并有可能获得令人惊讶的发现，这些发现可能会改变我们理解物理世界的方式。该奖项将支持康奈尔大学在瑞士日内瓦粒子物理实验室CERN的大型强子对撞机（LHC）上进行CMS实验的工作。在三年的合同期内，CMS将完成仪器升级并恢复数据采集。 此外，在此期间，将完成CMS高亮度HL-LHC操作的高级升级研发阶段，并将启动新探测器子系统的主要建设。 康奈尔大学小组是美国CMS小组更广泛的HL-LHC工作的项目领导者，并有自己的具体利益，包括前向像素跟踪探测器的升级和实验的跟踪触发。 在康奈尔大学小组的显著的更广泛的影响活动中，许多活动包括通过康奈尔大学加速器科学和教育实验室的外联办公室Xraise向纽约北部地区的学生和公众进行的重大外联活动。 Xraise为“借阅图书馆”开发了大量的教学单元和科学工具包，可以带到学校或用于课后项目，为数百名当地儿童带来令人兴奋的动手活动。 为支持这些活动而要求进行师资培训的人数远远超过了现有的培训机会。 为了扩大这个有价值的项目的覆盖面，康奈尔大学将制作视频，以进一步扩大可用于支持借阅图书馆的材料。 这项工作和内容开发将与Xraise专业人员密切合作，以确定主题，长度和目标受众。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This research project aims to better understand the Universe at the smallest scales by probing nature's basic symmetries and their relation to the origin of mass. The 2012 discovery of a Higgs boson with mass close to 125 GeV represents both the crowning achievement of the Standard Model of particle physics and a hint beyond it - how can a light Higgs boson possibly survive huge, destabilizing quantum effects without new, undiscovered physics? Furthermore, dark matter is known to exist from astronomical observations; however, the particle properties of dark matter remain shrouded in mystery. The combined activities of the Cornell University group address such basic questions puzzling science - the origin of mass and the particle nature of dark matter - and have the potential for surprising discoveries that may change the way we understand our physical world. This award will provide support Cornell's work on the CMS experiment at the Large Hadron Collider (LHC) at CERN, a particle physics laboratory in Geneva, Switzerland. During the three-year timeframe of this award, CMS will complete instrumentation upgrades and resume data taking. Additionally during this period, the R&D phase for the advance upgrades of CMS for high luminosity HL-LHC operation will be completed, and major construction of new detector subsystems will be initiated. The Cornell group serves as a project leader of the broader HL-LHC effort of the US groups on CMS, and has its own specific interests, including in the upgrade of the forward pixel tracking detector and track-triggering for the experiment. Among the notable broader impacts activities of the Cornell group, many include significant outreach to students and the public in the upstate New York region through Xraise, the outreach office of the Cornell Laboratory for Accelerator-based Sciences and Education. Xraise has developed a significant number of teaching units and science kits for a "Lending Library" that can be taken to schools or used in after-school programs to bring exciting hands-on activities to hundreds of local children. The requests for teacher training in support of such activities have far outnumbered the availability of training opportunities. To increase the reach of this valuable program, the Cornell group will produce videos to further expand upon the materials that are available to support the Lending Library. This work and content development will be done in close coordination with the Xraise professional staff, to identify topic, length and target audience.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.