{"title":"大型强子对撞机运行II的CMS 1级介子触发器","authors":"J. Heikkilae","doi":"10.22323/1.343.0049","DOIUrl":null,"url":null,"abstract":"The CMS experiment uses a sophisticated two-level triggering system composed of hardware-based Level-1 Trigger, and a software-based High Level Trigger to select 1 kHz of events out of 40 MHz for later analysis. A new Level-1 trigger architecture improves the data taking performance at high luminosity experienced during Run II. The upgraded muon trigger increases the redundancy of the three muon detectors Cathode Strip Chambers (CSC), Drift Tubes (DT), and Resistive Plate Chambers (RPC) by combining information in the muon track finders with new track reconstruction, which yields a better efficiency and lower rates. The upgraded muon trigger system and the algorithms designed to select events for both precision measurements and new physics searches are described. The performance of the upgraded muon trigger system is demonstrated using proton-proton collision data collected in Run II. Presented at TWEPP2018 Topical Workshop on Electronics for Particle Physics The CMS Level-1 muon trigger for the LHC Run II Jaana Heikkilä∗ on behalf of the CMS Collaboration Helsinki Institute of Physics E-mail: jaana.heikkila@cern.ch The CMS experiment uses a sophisticated two-level triggering system composed of hardwarebased Level-1 Trigger, and a software-based High Level Trigger to select 1 kHz of events out of 40 MHz for later analysis. A new Level-1 trigger architecture improves the data taking performance at high luminosity experienced during Run II. The upgraded muon trigger increases the redundancy of the three muon detectors Cathode Strip Chambers (CSC), Drift Tubes (DT), and Resistive Plate Chambers (RPC) by combining information in the muon track finders with new track reconstruction, which yields a better efficiency and lower rates. The upgraded muon trigger system and the algorithms designed to select events for both precision measurements and new physics searches are described. The performance of the upgraded muon trigger system is demonstrated using proton-proton collision data collected in Run II. Topical Workshop on Electronics for Particle Physics 17-21 September 2018 Antwerp, Belgium","PeriodicalId":400748,"journal":{"name":"Proceedings of Topical Workshop on Electronics for Particle Physics — PoS(TWEPP2018)","volume":"209 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The CMS Level-1 muon trigger for the LHC Run II\",\"authors\":\"J. 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The upgraded muon trigger system and the algorithms designed to select events for both precision measurements and new physics searches are described. The performance of the upgraded muon trigger system is demonstrated using proton-proton collision data collected in Run II. 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引用次数: 0
摘要
CMS实验采用了一个复杂的双电平触发系统，该系统由基于硬件的一级触发器和基于软件的高电平触发器组成，从40 MHz中选择1 kHz的事件用于后期分析。新的1级触发架构提高了运行II期间在高亮度下的数据采集性能。升级后的μ子触发器通过将μ子寻迹器中的信息与新的轨迹重建相结合，增加了阴极带室(CSC)、漂移管(DT)和电阻板室(RPC)三个μ子探测器的冗余度，从而提高了效率和降低了速率。描述了升级后的μ子触发系统和设计用于精确测量和新物理搜索的事件选择算法。升级后的介子触发系统的性能通过运行II中收集的质子-质子碰撞数据进行了验证。在TWEPP2018粒子物理电子专题研讨会上发表的CMS 1级μ子触发器用于LHC Run II Jaana Heikkilä∗代表CMS合作赫尔辛基物理研究所电子邮件:jaana.heikkila@cern.ch CMS实验使用一个复杂的两级触发系统，该系统由基于硬件的1级触发器和基于软件的高电平触发器组成，从40 MHz中选择1 kHz的事件用于后期分析。新的1级触发架构提高了运行II期间在高亮度下的数据采集性能。升级后的μ子触发器通过将μ子寻迹器中的信息与新的轨迹重建相结合，增加了阴极带室(CSC)、漂移管(DT)和电阻板室(RPC)三个μ子探测器的冗余度，从而提高了效率和降低了速率。描述了升级后的μ子触发系统和设计用于精确测量和新物理搜索的事件选择算法。升级后的介子触发系统的性能通过运行II中收集的质子-质子碰撞数据进行了验证。粒子物理电子学专题研讨会2018年9月17-21日，比利时安特卫普
The CMS experiment uses a sophisticated two-level triggering system composed of hardware-based Level-1 Trigger, and a software-based High Level Trigger to select 1 kHz of events out of 40 MHz for later analysis. A new Level-1 trigger architecture improves the data taking performance at high luminosity experienced during Run II. The upgraded muon trigger increases the redundancy of the three muon detectors Cathode Strip Chambers (CSC), Drift Tubes (DT), and Resistive Plate Chambers (RPC) by combining information in the muon track finders with new track reconstruction, which yields a better efficiency and lower rates. The upgraded muon trigger system and the algorithms designed to select events for both precision measurements and new physics searches are described. The performance of the upgraded muon trigger system is demonstrated using proton-proton collision data collected in Run II. Presented at TWEPP2018 Topical Workshop on Electronics for Particle Physics The CMS Level-1 muon trigger for the LHC Run II Jaana Heikkilä∗ on behalf of the CMS Collaboration Helsinki Institute of Physics E-mail: jaana.heikkila@cern.ch The CMS experiment uses a sophisticated two-level triggering system composed of hardwarebased Level-1 Trigger, and a software-based High Level Trigger to select 1 kHz of events out of 40 MHz for later analysis. A new Level-1 trigger architecture improves the data taking performance at high luminosity experienced during Run II. The upgraded muon trigger increases the redundancy of the three muon detectors Cathode Strip Chambers (CSC), Drift Tubes (DT), and Resistive Plate Chambers (RPC) by combining information in the muon track finders with new track reconstruction, which yields a better efficiency and lower rates. The upgraded muon trigger system and the algorithms designed to select events for both precision measurements and new physics searches are described. The performance of the upgraded muon trigger system is demonstrated using proton-proton collision data collected in Run II. Topical Workshop on Electronics for Particle Physics 17-21 September 2018 Antwerp, Belgium
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