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A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps

Publication ,  Journal Article
Zwalinski, L; Zou, W; Zormpa, O; Zorbas, TG; Zoch, K; Zoccoli, A; Živković, L; Ziolkowski, M; Zinsser, J; Zimine, NI; Zhukov, K; Zhuang, X ...
Published in: European Physical Journal C
November 1, 2025
Published version (DOI)

A calibration of the ATLAS flavour-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. Simultaneous, continuous corrections to the b-jet, c-jet, and light-flavour jet classification probabilities from jet-tagging algorithms in simulation are derived for b-jets using tt¯→eμννbb data. After application of the derived calibration maps, closure between simulation and observation is achieved for jet flavour observables used in ATLAS analyses of Large Hadron Collider (LHC) Run 2 proton-proton collision data. This continuous calibration opens up new possibilities for the future use of jet flavour information in LHC analyses and also serves as a guide for deriving high-dimensional corrections to simulation via transportation maps, an important development for a broad range of inference tasks.

Duke Scholars

Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
Mark C. Kruse
Author Mark C. Kruse Physics

Published In

European Physical Journal C

DOI

10.1140/epjc/s10052-025-14682-0

EISSN

1434-6052

ISSN

1434-6044

Publication Date

November 1, 2025

Volume

85

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Zwalinski, L., Zou, W., Zormpa, O., Zorbas, T. G., Zoch, K., Zoccoli, A., … Yang, T. (2025). A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps. European Physical Journal C, 85(11). https://doi.org/10.1140/epjc/s10052-025-14682-0
Zwalinski, L., W. Zou, O. Zormpa, T. G. Zorbas, K. Zoch, A. Zoccoli, L. Živković, et al. “A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps.” European Physical Journal C 85, no. 11 (November 1, 2025). https://doi.org/10.1140/epjc/s10052-025-14682-0.
Zwalinski L, Zou W, Zormpa O, Zorbas TG, Zoch K, Zoccoli A, et al. A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps. European Physical Journal C. 2025 Nov 1;85(11).
Zwalinski, L., et al. “A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps.” European Physical Journal C, vol. 85, no. 11, Nov. 2025. Scopus, doi:10.1140/epjc/s10052-025-14682-0.
Zwalinski L, Zou W, Zormpa O, Zorbas TG, Zoch K, Zoccoli A, Živković L, Ziolkowski M, Zinsser J, Zimine NI, Zhukov K, Zhuang X, Zhu Y, Zhu X, Zhu J, Zhu CG, Zhou Y, Zhou N, Zhou H, Zhou B, Zhong D, Zheng Z, Zheng X, Zheng K, Zheng J, Zhemchugov A, Zhao Z, Zhao Y, Zhao T, Zhao H, Zhang Z, Zhang Y, Zhang X, Zhang T, Zhang S, Zhang R, Zhang P, Zhang L, Zhang K, Zhang J, Zhang DF, Zhai M, Zerwas D, Zerradi S, Zenz S, Ženiš T, Zenin O, Zenger DT, Zeng JC, Zeng H, Zeitnitz C, Zaplatilek O, Zanzottera R, Zanzi D, Zang J, Zamora Saa JA, Zambito S, Zakareishvili T, Zak ZK, Zaid E, Zahir I, Zabinski B, Zaazoua M, Yue L, Yuan R, Yuan M, Yuan J, Yu Y, Yu C, Young C, Young CJS, Younas S, Yorita K, Yin P, Yildirim TP, Yexley MR, Yeo B, Yeletskikh I, Yeh Y, Ye X, Ye S, Ye J, Ye H, Yao WM, Yang Y, Yang X, Yang T. A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps. European Physical Journal C. 2025 Nov 1;85(11).
Journal cover image

Published In

European Physical Journal C

DOI

10.1140/epjc/s10052-025-14682-0

EISSN

1434-6052

ISSN

1434-6044

Publication Date

November 1, 2025

Volume

85

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics