Centers and Institutes
Published August 19, 2024 | Version v1
Journal article Open

Calibration of a soft secondary vertex tagger using proton-proton collisions at $\sqrt{s}=13  TeV$ with the ATLAS detector

Creators

  • 1. Aix-Marseille Université
  • 2. University of Bergen
  • 3. University of Oklahoma
  • 4. New York University Abu Dhabi
  • 5. Georg-August-Universität Göttingen
  • 6. Technische Universität Dortmund
  • 7. Brookhaven National Laboratory
  • 8. Southern Methodist University
  • 9. Université Mohammed V
  • 10. Tel Aviv University
  • 11. Israel Institute of Technology
  • 12. New York University
  • 13. INFN Gruppo Collegato di Udine
  • 14. Ruprecht-Karls-Universität Heidelberg
  • 15. Université Savoie Mont Blanc
  • 16. 87a
  • 17. Brandeis University
  • 18. 103
  • 19. 118
  • 20. Istanbul University
  • 21. University of Chicago

Description

Several processes studied by the ATLAS experiment at the Large Hadron Collider produce low-momentum 𝑏-flavored hadrons in the final state. This paper describes the calibration of a dedicated tagging algorithm that identifies 𝑏-flavored hadrons outside of hadronic jets by reconstructing the soft secondary vertices originating from their decays. The calibration is based on a proton-proton collision dataset at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of $140  fb^{−1}$. Scale factors used to correct the algorithm's performance in simulated events are extracted for the 𝑏-tagging efficiency and the mistag rate of the algorithm using a data sample enriched in $t\overline{t}$ events. Several orthogonal measurement regions are defined, binned as a function of the multiplicities of soft secondary vertices and jets containing a 𝑏-flavored hadron in the event. The mistag rate scale factors are estimated separately for events with low and high average numbers of interactions per bunch crossing. The results, which are derived from events with low missing transverse momentum, are successfully validated in a phase space characterized by high missing transverse momentum and therefore are applicable to new physics searches carried out in either phase space regime.

Notes

Due to the large number of authors, only the first 20 and the University of Chicago authors are included on the above author list. Please download the article for the complete list of authors.

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Additional details

Identifiers

DOI
10.1103/PhysRevD.110.032015
Other
oai:uchicago.tind.io:13271

Funding

CERN
Agencia Nacional de Investigación y Desarrollo
FONDECYT 1190886
Agencia Nacional de Investigación y Desarrollo
FONDECYT 1230812
Agencia Nacional de Investigación y Desarrollo
FONDECYT 1230987
Chinese Ministry of Science and Technology
MOST-2023YFA1605700
National Natural Science Foundation of China
NSFC-12175119
National Natural Science Foundation of China
NSFC-12275265
National Natural Science Foundation of China
NSFC-12075060
Czech Science Foundation
GACR—24-11373S
Ministry of Education Youth and Sports
FORTE CZ.02.01.01/00/22_008/0004632
PRIMUS Research Programme
PRIMUS/21/SCI/017
European Research Council
ERC-101002463
European Research Council
ERC-948254
European Research Council
ERC-101089007
European Union
Horizon 2020 Framework Programme
European Union
Future Artificial Intelligence Research
Italian Center for High Performance Computing, Big Data and Quantum Computing
Agence Nationale de la Recherche
ANR-20-CE31-0013
Agence Nationale de la Recherche
ANR-21-CE31-0013
Agence Nationale de la Recherche
ANR-21-CE31-0022
Investissements d'Avenir Labex
ANR-11-LABX-0012
Baden-Württemberg Stiftung
BW Stiftung-Postdoc Eliteprogramme
Deutsche Forschungsgemeinschaft
DFG-469666862
Deutsche Forschungsgemeinschaft
DFG-CR 312/5-2
Istituto Nazionale di Fisica Nucleare
Japan Society for the Promotion of Science
JP21H05085
Japan Society for the Promotion of Science
JP22H01227
Japan Society for the Promotion of Science
JP22H04944
Japan Society for the Promotion of Science
JP22KK0227
Netherlands Organisation for Scientific Research
NWO Veni 2020
Research Council of Norway
RCN-314472
Polish National Agency for Academic Exchange
PPN/PPO/2020/1/00002/U/00001
Polish National Science Centre
NCN 2021/42/E/ST2/00350
Polish National Science Centre
NCN OPUS nr 2022/47/B/ST2/03059
Polish National Science Centre
NCN UMO-2019/34/E/ST2/00393
Polish National Science Centre
UMO-2020/37/B/ST2/01043
Polish National Science Centre
UMO-2021/40/C/ST2/00187
Polish National Science Centre
UMO-2022/47/O/ST2/00148
Polish National Science Centre
UMO-2023/49/B/ST2/04085
Slovenian Research Agency
J1-3010
Generalitat Valenciana
IDIFEDER/2018/048
Ministry of Science and Innovation
MCIN and NextGenEU PCI2022-135018-2
Ministry of Science and Innovation
Ministry of Science and Innovation
MICIN and FEDER PID2021-125273NB
Ministry of Science and Innovation
RYC2019-028510-I
Ministry of Science and Innovation
RYC2020-030254-I
Ministry of Science and Innovation
RYC2021-031273-I
Ministry of Science and Innovation
RYC2022-038164-I
PROMETEO and GenT Programmes Generalitat Valenciana
CIDEGENT/2019/023
PROMETEO and GenT Programmes Generalitat Valenciana
CIDEGENT/2019/027
Swedish Research Council
2023-04654
Swedish Research Council
VR 2018-00482
Swedish Research Council
VR 2022-03845
Swedish Research Council
VR 2022-04683
Swedish Research Council
VR 2023-03403
Swedish Research Council
2021-03651
Knut and Alice Wallenberg Foundation
KAW 2018.0157
Knut and Alice Wallenberg Foundation
KAW 2018.0458
Knut and Alice Wallenberg Foundation
KAW 2019.0447
Knut and Alice Wallenberg Foundation
KAW 2022.0358
Swiss National Science Foundation
PCEFP2_194658
Leverhulme Trust
RPG-2020-004
Royal Society
NIF-R1-231091
U.S. Department of Energy
ECA DE-AC02-76SF00515
Neubauer Family Foundation

UChicago Information

Division(s)
Physical Sciences Division
Department(s)
Enrico Fermi Institute