Recoil-Safe Subtraction, Matching and Merging in e+e- to hadrons

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- to 5 jets. Phenomenological results for e+e- to 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.

Publication Details

Journal
ArXiv.org
Published
2025-07-30
Primary Topic
Particle physics theoretical and experimental studies
Type
article
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article

Recoil-Safe Subtraction, Matching and Merging in e+e- to hadrons

ArXiv.org
Particle physics theoretical and experimental studies
article

Recoil-Safe Subtraction, Matching and Merging in e+e- to hadrons

article en

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- to 5 jets. Phenomenological results for e+e- to 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.

ArXiv.org
Openalex Percentile: Top 76%
Particle physics theoretical and experimental studies
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Recoil-Safe Subtraction, Matching and Merging in e+e- to hadrons · ArXiv.org (2025) | TGRS Research Map | TGRS