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T: Fachverband Teilchenphysik
T 125: Flavour physics 6
T 125.3: Vortrag
Freitag, 8. März 2024, 09:30–09:45, Geb. 30.41: HS 4
Search for CP violation in hadronic charm decays — •Serena Maccolini — TU Dortmund University, Dortmund, Germany
A search for the violation of the CP symmetry
ACP(h−h+) in
the Cabibbo-suppressed D0→ h− h+ decays with h =
K, π is performed at the LHCb detector
using proton-proton collisions recorded from 2015 to 2018 at the
centre of mass energy of 13 TeV. The data used corresponds to an
integrated luminosity of 5.7 fb−1. The flavour of the charm mesons is defined from the charge of the pion in D*+ →
D0π+ and D*− →
D0π− decays. Instrumental effects are evaluated through the
calibration of high-statistics control samples (with negligible CP
violation) in order to emulate the detector response for the signal candidates.
The precision of the measurements is limited by the size of the control
samples after the calibration procedure.
An overview on alternative techinques and future measurements is also reported.
Keywords: Flavour, LHCb, Charm, CPV, direct