Do you have any recommendations in new papers today?

New submissions in hep-ex on Fri, 21 May 21

[2105.09691] Jakob Beyer, Jenny List: Isolating systematic effects with beam polarisation at $e^+e^-$ colliders

[2105.09889] LHCb collaboration: R. Aaij, C. Abellán Beteta, T. Ackernley et al.: Search for time-dependent $CP$ violation in $D^0 \to K^+ K^-$ and $D^0 \to π^+ π^-$ decays

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