Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 73: Flavour physics 3

T 73.7: Talk

Wednesday, March 6, 2024, 17:30–17:45, Geb. 30.41: HS 4

Early measurement of charm meson production asymmetries at LHCb in Run 3 — •Luca Balzani¹, Laurent Dufour², Paula Herrero Gascon³, Serena Maccolini¹, Dominik Stefan Mitzel¹, Sascha Stahl², Giulia Tuci³, and Francesco Zenesini⁴ — ¹TU Dortmund University, Dortmund, Germany — ²CERN, Geneva, Switzerland — ³Heidelberg University, Heidelberg, Germany — ⁴University of Bologna, Bologna, Italy

Ahead of Run 3 of the LHC, the LHCb detector was profoundly upgraded to leverage the programmed increase in luminosity. Studying the features of the upgraded detector is of paramount importance in order to reliably perform measurements.

Production asymmetries, of charm mesons in particular, are observables which depend on the colliding system characteristics but shall not be influenced by experimental effects, having these latter contributions under control is essential to perform a consistent measurement. This makes production asymmetries ideal candidates to investigate the characteristics of the new LHCb detector. Being this measurements one of the firsts done with the new data, it will also provide useful insights for their validation. Precise measurements of production asymmetries also allow for a better understanding of QCD models used in Monte Carlo generators, especially in the high-rapidity region. Finally, this analysis will lead to the first measurement of neutral charm meson production asymmetry for proton-proton collisions at the LHC energies. This contribution will discuss the general strategy and the techniques used for the extraction procedure.

Keywords: LHCb; Run3; Charm; Early_Measurement; Asymmetry