CMS trigger performance
نویسندگان
چکیده
منابع مشابه
Cms Calorimeter Trigger Implementation and Performance
For most of the CMS ECAL, a 6 crystal by 6 crystal array of physical calorimeter towers is mapped into trigger towers. There is a 1:1 correspondence between the HCAL and ECAL trigger towers. The trigger tower size is equivalent to the HCAL physical towers, .087 x .087 in η x φ. The φ size remains constant in ∆φ and the η size remains constant in ∆η out to an η of 2.1, beyond which the η size do...
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This paper presents an overall description of the CMS trigger system which is composed by the Level-1 Trigger and the High-Level Trigger subsystems. Details on the algorithms and selection criteria at a luminosity of 2x10 33 cm-2 s-1 are provided. High efficiencies for benchmark physics channels are attainable with an inclusive selection that avoids detailed topological requirements on the event.
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The SLHC will be a very challenging environment for physics and for the trigger and DAQ in particular. Expected pileup multiplicies on the level of 40-200 interactions every beam crossing will flood the detector with the “ambient noise” of many low pT particles. The impact of these low pT particles is particular large for the hadron calorimeter, which has a relatively large cell size (compared ...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2018
ISSN: 2100-014X
DOI: 10.1051/epjconf/201818202037