Fast b-tagging at the high-level trigger of the ATLAS experiment in LHC Run 3 - INSPIRE

Fast b-tagging at the high-level trigger of the ATLAS experiment in LHC Run 3

ATLAS

Collaboration

Jun 16, 2023

37 pages

Published in:

JINST 18 (2023) 11, P11006

Published: Nov 10, 2023

e-Print:

2306.09738 [hep-ex]

DOI:

10.1088/1748-0221/18/11/P11006

Report number:

CERN-EP-2023-111

Experiments:

CERN-LHC-ATLAS,
CERN-LHC-ATLAS

View in:

reference search16 citations

Citations per year

Abstract: (IOP)

The ATLAS experiment relies on real-time hadronic jetreconstruction and b-tagging to record fully hadronic eventscontaining b-jets. These algorithms require track reconstruction,which is computationally expensive and could overwhelm thehigh-level-trigger farm, even at the reduced event rate that passesthe ATLAS first stage hardware-based trigger. In LHC Run 3, ATLAShas mitigated these computational demands by introducing a fastneural-network-based b-tagger, which acts as a low-precisionfilter using input from hadronic jets and tracks. It runs after ahardware trigger and before the remaining high-level-triggerreconstruction. This design relies on the negligible cost ofneural-network inference as compared to track reconstruction, andthe cost reduction from limiting tracking to specific regions of thedetector. In the case of Standard Model HH → bb̅bb̅, a key signature relying on b-jet triggers, the filter lowers the input rate to the remaininghigh-level trigger by a factor of five at the small cost of reducingthe overall signal efficiency by roughly 2%.

Note:

37 pages in total, author list starting page 20, 5 figures, 2 tables. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TRIG-2022-03

Trigger algorithms
Trigger concepts and systems (hardware and software)
p p: scattering
p p: colliding beams
Higgs particle: pair production
Higgs particle: hadronic decay
bottom: pair production
jet: hadronic
trigger: hardware
jet: trigger

References(47)

Figures(9)

[1]

Measurements of Higgs bosons decaying to bottom quarks from vector boson fusion production with the ATLAS experiment at $\sqrt{s}=13\,\text {TeV}$

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 81 (2021) 6, 537
•
e-Print:
- 2011.08280
•
DOI:
- 10.1140/epjc/s10052-021-09192-8

[2]

Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs at $\sqrt{s}$ =13 TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- JHEP 03 (2021) 268
•
e-Print:
- 2010.13651
•
DOI:
- 10.1007/JHEP03(2021)268

[3]

Search for resonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Rev.D 105 (2022) 9, 092002
•
e-Print:
- 2202.07288
•
DOI:
- 10.1103/PhysRevD.105.092002

[4]

Constraints on spin-0 dark matter mediators and invisible Higgs decays using ATLAS 13 TeV $pp$ collision data with two top quarks and missing transverse momentum in the final state

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 83 (2023) 6, 503
•
e-Print:
- 2211.05426
•
DOI:
- 10.1140/epjc/s10052-023-11477-z

[5]

A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Nature 607 (2022) 7917, 52-59,
- Nature 612 (2022) 7941, E24 (erratum)
•
e-Print:
- 2207.00092
•
DOI:
- 10.1038/s41586-022-04893-w

[6]

A portrait of the Higgs boson by the CMS experiment ten years after the discovery.

CMS

Collaboration

•

Armen Tumasyan
(
- Tbilisi, Inst. Phys.
)

et al.

- Nature 607 (2022) 7917, 60-68,
- Nature 623 (2023) 7985, E4 (erratum)
•
e-Print:
- 2207.00043
•
DOI:
- 10.1038/s41586-022-04892-x

[7]

Report on the Physics at the HL-LHC,and Perspectives for the HE-LHC

Andrea Dainese
,
Michelangelo Mangano
,
Andreas B. Meyer
,
Aleandro Nisati
,
Gavin Salam

et al.

[8]

HL-LHC prospects for the measurement of Higgs boson pair production in the $b\bar{b}b\bar{b}$ final state and combination with the $b\bar{b}\gamma\gamma$ and $b\bar{b}\tau^+\tau^-$ final states at the ATLAS experiment

ATLAS

Collaboration

[9]

Review of Particle Physics

et al.

- PTEP 2020 (2020) 8, 083C01
•
DOI:
- 10.1093/ptep/ptaa104

[10]

Trigger monitoring and rate predictions using Enhanced Bias data from the ATLAS Detector at the LHC

ATLAS collaboration

Collaboration

The ATLAS experiment at the CERN Large Hadron Collider: a description of the detector configuration for Run 3

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- JINST 19 (2024) 05, P05063
•
e-Print:
- 2305.16623
•
DOI:
- 10.1088/1748-0221/19/05/P05063

[12]

The ATLAS Experiment at the CERN Large Hadron Collider

ATLAS

Collaboration

•

G. Aad
(
- Marseille, CPPM
)

et al.

- JINST 3 (2008) S08003
•
DOI:
- 10.1088/1748-0221/3/08/S08003

[13]

ATLAS Insertable B-Layer Technical Design Report

ATLAS

Collaboration

•

M. Capeans

et al.

[14]

Production and Integration of the ATLAS Insertable B-Layer

ATLAS IBL

Collaboration

•

B. Abbott
(
- Oklahoma U.
)

et al.

- JINST 13 (2018) 05, T05008
•
e-Print:
- 1803.00844
•
DOI:
- 10.1088/1748-0221/13/05/T05008

[15]

Performance of the ATLAS Trigger System in 2015

ATLAS

Collaboration

•

Morad Aaboud
(
- Oujda U.
)

et al.

- Eur.Phys.J.C 77 (2017) 5, 317
•
e-Print:
- 1611.09661
•
DOI:
- 10.1140/epjc/s10052-017-4852-3

[16]

A comparison of HEP code with SPEC benchmarks on multi-core worker nodes

Michele Michelotto
(
- INFN, Padua
)
,
Manfred Alef
(
- KIT, Karlsruhe, IKP
)
,
Alejandro Iribarren
(
- CERN
)
,
Helge Meinhard
(
- CERN
)
,
Peter Wegner
(
- DESY, Zeuthen
)

et al.

- J.Phys.Conf.Ser. 219 (2010) 052009
•
DOI:
- 10.1088/1742-6596/219/5/052009

[17]

The ATLAS Collaboration Software and Firmware

ATLAS

Collaboration

[18]

The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 82 (2022) 3, 206
•
e-Print:
- 2107.02485
•
DOI:
- 10.1140/epjc/s10052-021-09920-0

[19]

Performance of the ATLAS Level-1 topological trigger in Run 2

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 82 (2022) 1, 7
•
e-Print:
- 2105.01416
•
DOI:
- 10.1140/epjc/s10052-021-09807-0

[20]

Jet reconstruction and performance using particle flow with the ATLAS Detector

ATLAS

Collaboration

•

Morad Aaboud
(
- Oujda U.
)

et al.

- Eur.Phys.J.C 77 (2017) 7, 466
•
e-Print:
- 1703.10485
•
DOI:
- 10.1140/epjc/s10052-017-5031-2

[21]

The anti- $k_t$ jet clustering algorithm

- JHEP 04 (2008) 063
•
e-Print:
- 0802.1189
•
DOI:
- 10.1088/1126-6708/2008/04/063

[22]

Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 77 (2017) 490
•
e-Print:
- 1603.02934
•
DOI:
- 10.1140/epjc/s10052-017-5004-5

[23]

Jet energy scale and resolution measured in proton–proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 81 (2021) 8, 689
•
e-Print:
- 2007.02645
•
DOI:
- 10.1140/epjc/s10052-021-09402-3

[24]

Configuration and performance of the ATLAS $b$ -jet triggers in Run 2

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 81 (2021) 12, 1087
•
e-Print:
- 2106.03584
•
DOI:
- 10.1140/epjc/s10052-021-09775-5

ATLAS flavour-tagging algorithms for the LHC Run 2 pp collision dataset

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 83 (2023) 7, 681
•
e-Print:
- 2211.16345
•
DOI:
- 10.1140/epjc/s10052-023-11699-1

1-25 of 47
1
2
25 / page