File Download
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1140/epjc/s10052-019-7500-2
- Scopus: eid_2-s2.0-85078123210
- WOS: WOS:000519817900001
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Performance of electron and photon triggers in ATLAS during LHC Run 2
Title | Performance of electron and photon triggers in ATLAS during LHC Run 2 |
---|---|
Authors | |
Issue Date | 2020 |
Publisher | Springer Verlag (Germany): SCOAP3. The Journal's web site is located at http://epjc.edpsciences.org |
Citation | The European Physical Journal C: Particles and Fields, 2020, v. 80 n. 1, article no. 47 How to Cite? |
Abstract | Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena in both proton–proton and heavy-ion collisions. To cope with a fourfold increase of peak LHC luminosity from 2015 to 2018 (Run 2), to 2.1×1034cm−2 s−1, and a similar increase in the number of interactions per beam-crossing to about 60, trigger algorithms and selections were optimised to control the rates while retaining a high efficiency for physics analyses. For proton–proton collisions, the single-electron trigger efficiency relative to a single-electron offline selection is at least 75% for an offline electron of 31 GeV , and rises to 96% at 60 GeV ; the trigger efficiency of a 25 GeV leg of the primary diphoton trigger relative to a tight offline photon selection is more than 96% for an offline photon of 30 GeV . For heavy-ion collisions, the primary electron and photon trigger efficiencies relative to the corresponding standard offline selections are at least 84% and 95%, respectively, at 5 GeV above the corresponding trigger threshold. |
Persistent Identifier | http://hdl.handle.net/10722/286274 |
ISSN | 2023 Impact Factor: 4.2 2023 SCImago Journal Rankings: 1.451 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | ATLAS Collaboration | - |
dc.contributor.author | Lo, CY | - |
dc.contributor.author | Paredes Hernandez, D | - |
dc.contributor.author | Tu, Y | - |
dc.contributor.author | Pizzimento, L | - |
dc.date.accessioned | 2020-08-31T07:01:37Z | - |
dc.date.available | 2020-08-31T07:01:37Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | The European Physical Journal C: Particles and Fields, 2020, v. 80 n. 1, article no. 47 | - |
dc.identifier.issn | 1434-6044 | - |
dc.identifier.uri | http://hdl.handle.net/10722/286274 | - |
dc.description.abstract | Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for the ATLAS experiment to record signals for a wide variety of physics: from Standard Model processes to searches for new phenomena in both proton–proton and heavy-ion collisions. To cope with a fourfold increase of peak LHC luminosity from 2015 to 2018 (Run 2), to 2.1×1034cm−2 s−1, and a similar increase in the number of interactions per beam-crossing to about 60, trigger algorithms and selections were optimised to control the rates while retaining a high efficiency for physics analyses. For proton–proton collisions, the single-electron trigger efficiency relative to a single-electron offline selection is at least 75% for an offline electron of 31 GeV , and rises to 96% at 60 GeV ; the trigger efficiency of a 25 GeV leg of the primary diphoton trigger relative to a tight offline photon selection is more than 96% for an offline photon of 30 GeV . For heavy-ion collisions, the primary electron and photon trigger efficiencies relative to the corresponding standard offline selections are at least 84% and 95%, respectively, at 5 GeV above the corresponding trigger threshold. | - |
dc.language | eng | - |
dc.publisher | Springer Verlag (Germany): SCOAP3. The Journal's web site is located at http://epjc.edpsciences.org | - |
dc.relation.ispartof | The European Physical Journal C: Particles and Fields | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Performance of electron and photon triggers in ATLAS during LHC Run 2 | - |
dc.type | Article | - |
dc.identifier.email | Lo, CY: samuel3@hku.hk | - |
dc.identifier.email | Paredes Hernandez, D: dparedes@hku.hk | - |
dc.identifier.email | Tu, Y: yanjuntu@hku.hk | - |
dc.identifier.authority | Tu, Y=rp01971 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1140/epjc/s10052-019-7500-2 | - |
dc.identifier.scopus | eid_2-s2.0-85078123210 | - |
dc.identifier.hkuros | 313269 | - |
dc.identifier.volume | 80 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 47 | - |
dc.identifier.epage | article no. 47 | - |
dc.identifier.isi | WOS:000519817900001 | - |
dc.publisher.place | Germany | - |
dc.identifier.issnl | 1434-6044 | - |