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A search for baryon-number-violating $\Xi_b^0$ oscillations is performed witha sample of $pp$ collision data recorded by the LHCb experiment, correspondingto an integrated luminosity of 3 fb$^{-1}$. The baryon number at the moment ofproduction is identified by requiring that the $\Xi_b^0$ come from the decay ofa resonance $\Xi_b^{*-} \to \Xi_b^0 \pi^-$ or $\Xi_b^{\prime-} \to \Xi_b^0\pi^-$, and the baryon number at the moment of decay is identified from thefinal state using the decays $\Xi_b^0 \to \Xi_c^+ \pi^-, ~ \Xi_c^+ \to p K^-\pi^+$. No evidence of baryon number violation is found, and an upper limit atthe 95% confidence level is set on the oscillation rate of $\omega < 0.08$ps$^{-1}$, where $\omega$ is the associated angular frequency.

Search for baryon-number-violating $\Xi_b^0$ oscillations