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FunTuple: A new N-tuple component for offline data processing at the LHCb experiment

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arxiv 2310.02433 v3 pith:VYQUPHUH submitted 2023-10-03 physics.data-an hep-ex

FunTuple: A new N-tuple component for offline data processing at the LHCb experiment

Abhijit Mathad , Martina Ferrillo , Sacha Barr\'e , Patrick Koppenburg , Patrick Owen , Gerhard Raven , Eduardo Rodrigues , Nicola Serra This is my paper
classification physics.data-an hep-ex
keywords componentdataexperimentlhcbofflineprocessingfuntupleobservables
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The offline software framework of the LHCb experiment has undergone a significant overhaul to tackle the data processing challenges that will arise in the upcoming Run 3 and Run 4 of the Large Hadron Collider. This paper introduces FunTuple, a novel component developed for offline data processing within the LHCb experiment. This component enables the computation and storage of a diverse range of observables for both reconstructed and simulated events by leveraging on the tools initially developed for the trigger system. This feature is crucial for ensuring consistency between trigger-computed and offline-analysed observables. The component and its tool suite offer users flexibility to customise stored observables, and its reliability is validated through a full-coverage set of rigorous unit tests. This paper comprehensively explores FunTuple's design, interface, interaction with other algorithms, and its role in facilitating offline data processing for the LHCb experiment for the next decade and beyond.

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  1. Measurement of $\gamma$ using $B^{\pm}\rightarrow DK^{\pm}$ and $B^{\pm}\rightarrow D\pi^{\pm}$ decays with $D\rightarrow K_{\rm S}^{0}\pi^{+}\pi^{-}$ and $D\rightarrow K_{\rm S}^{0}K^{+}K^{-}$

    hep-ex 2026-05 unverdicted novelty 4.0

    The CKM angle γ is measured to be (68.1 ± 6.7)° from CP violation observed in the Dalitz plots of B± → DK± and B± → Dπ± decays with D → KS0π+π− and KS0K+K−.