Detector induced charge asymmetry studies for future CP violation measurements at LHCb.

In this thesis it has been carried out a measurement of detection asymmetries $A_{det}$ for the particle pair $K^-\pi^+$. The data analysed are Run 3 data that were collected by LHCb at centre-of-mass energy $\sqrt{s}=13.6$ TeV during 2022 data taking campaign. The decay mode studied are $D^+\rightarrow K^-\pi^+\pi^+$ and $D^+\rightarrow K^0_s\pi^+$. The dataset has been divided depending on the different requests of trigger: when the decays are triggered on signal tracks (TOS) or independently from the signal (TIS). The measurements have been carried independently in the two samples. During these studies it was possible to study misalignment effects in early Run 3 data. The resulting integral detection asymmetries for both samples are $A^{det}_{TIS}=(-1.9\pm1.9) \%$, $A^{det}_{TOS}=(-2.1\pm2.8) \%$. A differential measurement in bins of $p(K^-)$ for both samples have also been performed. The detection asymmetries are found to be compatible with zero. With additional statistics from the full Run 3 data taking the measurement will become more precise and will be useful for future studies of production asymmetry measurements and CP violation measurements.