General mass variable flavor number scheme for Z boson production in association with a heavy quark at hadron colliders

Guzzi, Marco; Nadolsky, Pavel; Reina, Laura; Wackeroth, Doreen; Xie, Keping

doi:10.1103/PhysRevD.110.114030

Title: General mass variable flavor number scheme for $Z$ boson production in association with a heavy quark at hadron colliders

Journal Article · 20 December 2024 · Physical Review. D.

DOI: https://doi.org/10.1103/PhysRevD.110.114030 · OSTI ID:2483627

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We present a methodology to streamline implementation of massive-quark radiative contributions in calculations with a variable number of active partons in proton-proton collisions. The methodology introduces and heavy-quark parton distribution functions (PDFs) to implement calculations in the Aivazis–Collins–Olness–Tung (ACOT) factorization scheme and its simplified realization in various processes up to the next-to-the-next-to-leading order in the QCD coupling strength. Interpolation tables for bottom-quark subtraction and residual distributions for CT18 NLO and NNLO PDF ensembles are provided in the common LHAPDF6 format. A numerical calculation of $Z$ -boson production with at least one $b$ jet at the Large Hadron Collider beyond the lowest order in QCD is considered for illustration purposes. Published by the American Physical Society 2024

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Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0010102; SC0010129

OSTI ID:: 2483627

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 11 Vol. 110; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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