Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution
During the 2015–2018 data-taking period, the Large Hadron Collider delivered proton-proton bunch crossings at a centre-of-mass energy of 13 TeV to the ATLAS experiment at a rate of roughly 30 MHz, where each bunch crossing contained an average of 34 independent inelastic proton-proton collisions. Th...
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| Formaat: | Journal article |
| Taal: | English |
| Gepubliceerd in: |
Springer
2024
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| _version_ | 1826316539695988736 |
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| author | Aad, G Aakvaag, E Abbott, B Abdelhameed, S Abeling, K Abicht, NJ Abidi, SH Aboelela, M Aboulhorma, A Abramowicz, H Abreu, H Abulaiti, Y Acharya, BS Ackermann, A Adam Bourdarios, C Adamczyk, L Addepalli, SV Addison, MJ Adelman, J Adiguzel, A Adye, T Affolder, AA Afik, Y Agaras, MN Barr, AJ Bortoletto, D Bruckler, TL Chen, M Conroy, EI Cooper-Sarkar, AM Dingley, T Draguet, MA Eberwein, GH Frost, JA Gallas, EJ Grabarczyk, RP Gwenlan, C Haslbeck, F Hays, CP Hodkinson, BH Huffman, TB Iizawa, T Karava, K Koch, SF Moser, B Nagai, K Nedic, L Nickerson, RB Pacey, HA Rossi, E Ruggiero, A Schopf, E Shipsey, IPJ Sultan, DMS Viehhauser, GHA Weidberg, AR Yildirim, TP |
| author_facet | Aad, G Aakvaag, E Abbott, B Abdelhameed, S Abeling, K Abicht, NJ Abidi, SH Aboelela, M Aboulhorma, A Abramowicz, H Abreu, H Abulaiti, Y Acharya, BS Ackermann, A Adam Bourdarios, C Adamczyk, L Addepalli, SV Addison, MJ Adelman, J Adiguzel, A Adye, T Affolder, AA Afik, Y Agaras, MN Barr, AJ Bortoletto, D Bruckler, TL Chen, M Conroy, EI Cooper-Sarkar, AM Dingley, T Draguet, MA Eberwein, GH Frost, JA Gallas, EJ Grabarczyk, RP Gwenlan, C Haslbeck, F Hays, CP Hodkinson, BH Huffman, TB Iizawa, T Karava, K Koch, SF Moser, B Nagai, K Nedic, L Nickerson, RB Pacey, HA Rossi, E Ruggiero, A Schopf, E Shipsey, IPJ Sultan, DMS Viehhauser, GHA Weidberg, AR Yildirim, TP |
| author_sort | Aad, G |
| collection | OXFORD |
| description | During the 2015–2018 data-taking period, the Large Hadron Collider delivered proton-proton bunch crossings at a centre-of-mass energy of 13 TeV to the ATLAS experiment at a rate of roughly 30 MHz, where each bunch crossing contained an average of 34 independent inelastic proton-proton collisions. The ATLAS trigger system selected roughly 1 kHz of these bunch crossings to be recorded to disk. Offline algorithms then identify one of the recorded collisions as the collision of interest for subsequent data analysis, and the remaining collisions are referred to as pile-up. Pile-up collisions represent a trigger-unbiased dataset, which is evaluated to have an integrated luminosity of 1.33 pb−1 in 2015–2018. This is small compared with the normal trigger-based ATLAS dataset, but when combined with vertex-by-vertex jet reconstruction it provides up to 50 times more dijet events than the conventional single-jet-trigger-based approach, and does so without adding any additional cost or requirements on the trigger system, readout, or storage. The pile-up dataset is validated through comparisons with a special trigger-unbiased dataset recorded by ATLAS, and its utility is demonstrated by means of a measurement of the jet energy resolution in dijet events, where the statistical uncertainty is significantly reduced for jet transverse momenta below 65 GeV. |
| first_indexed | 2024-12-09T03:47:33Z |
| format | Journal article |
| id | oxford-uuid:9d74fc58-a305-49d0-bf04-2f77a28636d8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-12-09T03:47:33Z |
| publishDate | 2024 |
| publisher | Springer |
| record_format | dspace |
| spelling | oxford-uuid:9d74fc58-a305-49d0-bf04-2f77a28636d82024-12-07T20:09:16ZUsing pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolutionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9d74fc58-a305-49d0-bf04-2f77a28636d8EnglishJisc Publications RouterSpringer2024Aad, GAakvaag, EAbbott, BAbdelhameed, SAbeling, KAbicht, NJAbidi, SHAboelela, MAboulhorma, AAbramowicz, HAbreu, HAbulaiti, YAcharya, BSAckermann, AAdam Bourdarios, CAdamczyk, LAddepalli, SVAddison, MJAdelman, JAdiguzel, AAdye, TAffolder, AAAfik, YAgaras, MNBarr, AJBortoletto, DBruckler, TLChen, MConroy, EICooper-Sarkar, AMDingley, TDraguet, MAEberwein, GHFrost, JAGallas, EJGrabarczyk, RPGwenlan, CHaslbeck, FHays, CPHodkinson, BHHuffman, TBIizawa, TKarava, KKoch, SFMoser, BNagai, KNedic, LNickerson, RBPacey, HARossi, ERuggiero, ASchopf, EShipsey, IPJSultan, DMSViehhauser, GHAWeidberg, ARYildirim, TPDuring the 2015–2018 data-taking period, the Large Hadron Collider delivered proton-proton bunch crossings at a centre-of-mass energy of 13 TeV to the ATLAS experiment at a rate of roughly 30 MHz, where each bunch crossing contained an average of 34 independent inelastic proton-proton collisions. The ATLAS trigger system selected roughly 1 kHz of these bunch crossings to be recorded to disk. Offline algorithms then identify one of the recorded collisions as the collision of interest for subsequent data analysis, and the remaining collisions are referred to as pile-up. Pile-up collisions represent a trigger-unbiased dataset, which is evaluated to have an integrated luminosity of 1.33 pb−1 in 2015–2018. This is small compared with the normal trigger-based ATLAS dataset, but when combined with vertex-by-vertex jet reconstruction it provides up to 50 times more dijet events than the conventional single-jet-trigger-based approach, and does so without adding any additional cost or requirements on the trigger system, readout, or storage. The pile-up dataset is validated through comparisons with a special trigger-unbiased dataset recorded by ATLAS, and its utility is demonstrated by means of a measurement of the jet energy resolution in dijet events, where the statistical uncertainty is significantly reduced for jet transverse momenta below 65 GeV. |
| spellingShingle | Aad, G Aakvaag, E Abbott, B Abdelhameed, S Abeling, K Abicht, NJ Abidi, SH Aboelela, M Aboulhorma, A Abramowicz, H Abreu, H Abulaiti, Y Acharya, BS Ackermann, A Adam Bourdarios, C Adamczyk, L Addepalli, SV Addison, MJ Adelman, J Adiguzel, A Adye, T Affolder, AA Afik, Y Agaras, MN Barr, AJ Bortoletto, D Bruckler, TL Chen, M Conroy, EI Cooper-Sarkar, AM Dingley, T Draguet, MA Eberwein, GH Frost, JA Gallas, EJ Grabarczyk, RP Gwenlan, C Haslbeck, F Hays, CP Hodkinson, BH Huffman, TB Iizawa, T Karava, K Koch, SF Moser, B Nagai, K Nedic, L Nickerson, RB Pacey, HA Rossi, E Ruggiero, A Schopf, E Shipsey, IPJ Sultan, DMS Viehhauser, GHA Weidberg, AR Yildirim, TP Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution |
| title | Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution |
| title_full | Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution |
| title_fullStr | Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution |
| title_full_unstemmed | Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution |
| title_short | Using pile-up collisions as an abundant source of low-energy hadronic physics processes in ATLAS and an extraction of the jet energy resolution |
| title_sort | using pile up collisions as an abundant source of low energy hadronic physics processes in atlas and an extraction of the jet energy resolution |
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