Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K S 0 $$ {K}_{\mathrm{S}}^0 $$ h+h−

For a complete list of authors, please look at article.Abstract A measurement of CP-violating observables is performed using the decays B± → DK± and B± → Dπ±, where the D meson is reconstructed in one of the self-conjugate three-body final states K S 0 $$ {K}_{\mathrm{S}}^0 $$ π+π− and K S 0 $$ {K}_{\mathrm{S}}^0 $$ K+K− (commonly denoted K S 0 $$ {K}_{\mathrm{S}}^0 $$ h+h−). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb−1 collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be 68.7 − 5.1 + 5.2 ° $$ \left({68.7}_{-5.1}^{+5.2}\right){}^{\circ} $$ . The hadronic parameters r B DK , r B Dπ , δ B DK , and δ B Dπ $$ {r}_B^{D K},{r}_B^{D\pi},{\delta}_B^{D K},\kern0.5em \mathrm{and}\kern0.5em {\delta}_B^{D\pi} $$ , which are the ratios and strong-phase differences of the suppressed and favoured B± decays, are also reported.http://deepblue.lib.umich.edu/bitstream/2027.42/173317/1/13130_2021_Article_14895.pd