R Aaij, C Abellán Beteta,
T Ackernley, B Adeva… - Journal of High Energy …, 2020 - Springer
A bstract A new baryon state is observed in the\({\Lambda} _ {\mathrm {b}}^ 0 {\pi}^{+}{\pi}^{-
}\) mass spectrum with high significance using a data sample of pp collisions, collected with …