Author

M. Andreotti

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Preprint Aug 2026

Observation of the $\Xi_c^0 \to pK^-$ decay and measurement of its decay asymmetry

A search for the Cabibbo-suppressed decay $\Xi_c^0 \to pK^-$ is performed using $pp$ collision data corresponding to an integrated luminosity of $5.4\,\mathrm{fb}^{-1}$, collected by the LHCb experiment at a centre-of-mass energy of $13\,\mathrm{TeV}$. The decay is observed for the first time and its branching fraction...

LHCb Collaboration R. Aaij, M. Abdelfatah, A. Abdelmotteleb et al. · 0 citations

Preprint Sep 2026

Stringent limits on $C\!PT$- and Lorentz-invariance violation from $B_s^0$ meson decays

Tests of fundamental symmetries, such as $C\!PT$ and Lorentz invariance, provide sensitive probes of physics beyond the standard quantum-field-theory framework. Possible violations of these symmetries are investigated through interference effects in decays of $B_s^0$ mesons to $D_s^-\pi^{+}$ states. The analysis uses p...

L. C. R. Aaij, M. Abdelfatah, A. Abdelmotteleb et al. · 0 citations