Performance of the missing transverse momentum triggers for the ATLAS detector during Run-2 data taking

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00534316" target="_blank" >RIV/68378271:_____/20:00534316 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/20:00346700 RIV/68407700:21340/20:00346700 RIV/68407700:21670/20:00346700 RIV/00216208:11320/20:10423590 RIV/61989592:15310/20:73602353
Result on the web
<a href="http://hdl.handle.net/11104/0312537" target="_blank" >http://hdl.handle.net/11104/0312537</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP08(2020)080" target="_blank" >10.1007/JHEP08(2020)080</a>

Result language
angličtina
Original language name
Performance of the missing transverse momentum triggers for the ATLAS detector during Run-2 data taking
Original language description
The factor of four increase in the LHC luminosity, from 0.5 × 1034^{34}34 cm−2^{−2}−2s−1^{−1}−1 to 2.0 × 1034^{34}34cm−2^{−2}−2s−1^{−1}−1, and the corresponding increase in pile-up collisions during the 2015–2018 data-taking period, presented a challenge for the ATLAS trigger, particularly for those algorithms that select events with missing transverse momentum. The output data rate at fixed threshold typically increases exponentially with the number of pile-up collisions, so the legacy algorithms from previous LHC data-taking periods had to be tuned and new approaches developed to maintain the high trigger efficiency achieved in earlier operations. A study of the trigger performance and comparisons with simulations show that these changes resulted in event selection efficiencies of > 98% for this period, meeting and in some cases exceeding the performance of similar triggers in earlier run periods.n
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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