BandQ: Search for excited state in B Lambda spectrum

Some checks on EOY resprucing on 2024 data.

• \Lambda_b^0 \rightarrow \Lambda_c^{+} D_s^{-}
• \Xi_{b}^- \rightarrow \Lambda_c^+ D_s^- K^{-}, c.c. @rzan
• \Xi_b^- \rightarrow B^{-} \Lambda^{0}, with
  • B^{-} \rightarrow J/\psi K^-
  • B^{-} \rightarrow D^{0} \pi^-
  • B^{-} \rightarrow D^{0} \pi^+ \pi^- \pi^-
  • B^{-} \rightarrow D^{+} \pi^- \pi^-
• \Xi_b^+ \rightarrow B^{+} \Lambda^{0} wrong sign, with
  • B^{+} \rightarrow J/\psi K^+
  • B^{+} \rightarrow \overline{D}^{0} \pi^+
  • B^{+} \rightarrow \overline{D}^{0} \pi^- \pi^+ \pi^+
  • B^{+} \rightarrow D^{-} \pi^+ \pi^+
• \Xi_b^0 \rightarrow \overline{B}^{0} \Lambda^{0}, with
  • \overline{B}^{0} \rightarrow J/\psi K^{-} \pi^+
  • \overline{B}^{0} \rightarrow D^{+} \pi^{-}
  • \overline{B}^{0} \rightarrow D^{+} \pi^+ \pi^- \pi^-
  • \overline{B}^{0} \rightarrow D^{0} \pi^+ \pi^-
• \Xi_b^0 \rightarrow B^{0} \Lambda^{0} wrong sign, with
  • B^{0} \rightarrow J/\psi K^{+} \pi^-
  • B^{0} \rightarrow D^{-} \pi^{+}
  • B^{0} \rightarrow D^{-} \pi^- \pi^+ \pi^+
  • B^{0} \rightarrow \overline{D}^{0} \pi^+ \pi^-