Search for CP violation in $D^+_s \to K^0_s \pi^+, D^+ \to K^0_s K^+$ and $D^+ \to \phi \pi^+$ decays

LHCb Collaboration; Bernet, Roland; Müller, Katharina; Owen, Patrick; Serra, Nicola; Steinkamp, Olaf; Vollhardt, Achim; et al (2019). Search for CP violation in $D^+_s \to K^0_s \pi^+, D^+ \to K^0_s K^+$ and $D^+ \to \phi \pi^+$ decays. Physical Review Letters, 122(19):191803.