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.

A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps / Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N.J., Abidi, S.H., Aboelela, M., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B.S., Ackermann, A., Bourdarios, C.A., Adamczyk, L., Addepalli, S.V., Addison, M.J., Adelman, J., Adiguzel, A., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 85:11(2025). [10.1140/epjc/s10052-025-14682-0]

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

Aloisio, A.;Alviggi, M.;Canale, V.;Cirotto, F.;D'Avanzo, A.;Della Pietra, M.;Massarotti, P.;Merola, L.;Rossi, E.;
2025

Abstract

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.
2025
A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps / Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N.J., Abidi, S.H., Aboelela, M., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B.S., Ackermann, A., Bourdarios, C.A., Adamczyk, L., Addepalli, S.V., Addison, M.J., Adelman, J., Adiguzel, A., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 85:11(2025). [10.1140/epjc/s10052-025-14682-0]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/1047242
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