DOE OSTI · 2574344
Recoil-safe subtraction, matching and merging in e$^{+}$e$^{−}$ → hadrons
Abstract
We present the first next-to-leading order matched and multi-jet merged predictions based on the Alaric parton shower. The components needed for infrared subtraction in the S-Mc@Nlo algorithm are computed analytically for the case of color singlet decays to hadronic final states and validated against existing approaches for up to e$^{−}$e$^{+}$ → 5 jets. Phenomenological results for e$^{−}$e$^{+}$ → hadrons at the Z pole are obtained with up to five jets at next-to-leading order precision, for the first time using an evolution algorithm with NLL-preserving kinematics mapping.
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Höche, Stefan [Fermilab] (ORCID:0000000213706059), Krauss, Frank [Durham U., IPPP] (ORCID:0000000150433099), Meinzinger, Peter [Zurich U.] (ORCID:0000000328228325), Reichelt, Daniel [CERN] (ORCID:0000000330775256). 2026-05-19. Recoil-safe subtraction, matching and merging in e$^{+}$e$^{−}$ → hadrons. https://doi.org/10.1007/jhep05(2026)219
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