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CMS 升级项目5D量能器硅模块试制成功（图）
5D量能器；硅模块；CMS升级
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2021/10/9
近日，近日，中国科学院高能物理研究所团队参加的CMS端盖量能器升级项目，完成了CMS高粒度量能器（HGCal）硅模块样机的试制（图1）。同时在中国科学院高能物理研究所对该硅模块完成了初步的电子学测试后，该硅模块已经发往欧洲核子中心用于束流测试，模块制作关键步骤视频已经分享到合作组。这标志着高能所初步掌握了HGCal硅模块的制作工艺，具备了生产HGCal硅模块的能力，为后期量产打下了基础。该模块是C...
Search for Extra dimensions in a single-jet and missing energy channel at CMS experiment
Extra dimensions missing energy channel single-jet
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2010/3/15
A possible solution to the hierarchy problem is the presence of extra spatial dimensions beyond the three ones which are known from our everyday experience. The phenomenological ADD model of large ext...
A low mass pixel detector upgrade for CMS
mass pixel detector upgrade
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2010/3/15
The CMS pixel detector has been designed for a peak luminosity of 10^34cm-2s-1 and a total dose corresponding to 2 years of LHC operation at a radius of 4 cm from the interaction region. Parts of the ...
First experience in operating the population of the condition databases for the CMS experiment
CMS experiment condition data
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2010/3/15
Reliable population of the condition databases is critical for the correct operation of the online selection as well as of the offline reconstruction and analysis of data. We will describe here the sy...
Persistent storage of non-event data in the CMS databases
Software architectures Computing
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2010/3/15
In the CMS experiment, the non event data needed to set up the detector, or being produced by it, and needed to calibrate the physical responses of the detector itself are stored in ORACLE databases. ...