Fitting in or odd one out? Pulls vs residual responses in b→ s ℓ⁺ℓ^-

2019/08/09 by Bernat Capdevila, Capdevila, Bernat, Ursula Laa +3
Physics and Astronomy · #Data Analysis #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Statistics and Probability (physics.data-an)

paper · pdf · doi:10.48550/arxiv.1908.03338

openalex publication_date 2019/08/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

New results in processes with an underlying quark transition b→ s ℓ⁺ℓ^- have been recently reported by the LHCb and Belle II collaborations. In this note we show how the main implications of a handful of new measurements can be understood with the tools introduced in our recent paper, arXiv:1811.10793, without the need to redo the global fits. We find that the main impact of the new results, due to R_K^[1.1,6] from LHCb, is a decrease in C_10μ^NP with a reduced uncertainty. We validate this conclusion by presenting the result of a new global fit.

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