Studies of $b$-hadrons and quarkonia at LHCb

TL;DR

This paper reports seven recent results from LHCb on $b$-hadrons and quarkonia, including new particle observations, decay modes, and searches for rare baryons, advancing understanding of quantum chromodynamics.

Contribution

It presents seven novel experimental results on $b$-hadrons and quarkonia, including new particle states, decay observations, and searches for rare baryons at LHCb.

Findings

Observation of a new excited $ ext{Xi}_b^0$ resonance

First observation of suppressed semileptonic $B_s^0$ decay

Searches for doubly heavy baryons $ ext{Omega}_{bc}^0$ and $ ext{Xi}_{bc}^0$

Abstract

LHCb has productive studies of quarkonia and $b$-hadrons which provide essential inputs to study quantum chromodynamics (QCD). In this proceeding, seven recent results are reported: the observation of a new excited $\Xi_b^0$ resonance in $\Xi_b^- \pi^+$ final states, the new excited $B_s^0$ state is observed in $B^+ K^-$ mass spectrum, the first observation of suppressed semileptonic $B_s^0 \rightarrow K^- \mu^+ \nu_{\mu}$ decay, the first observation of the decay $B^0 \rightarrow D^0 \bar{D}^0 K^+ \pi^-$, the first observation of the Cabibbo-suppressed decay $\Lambda_b^0 \rightarrow \chi_{c1} p \pi^-$, the first observation of $\Lambda_b^0 \rightarrow \Lambda_c^+ K^+ K^- \pi^-$ decay, and end this report with the first search for the doubly heavy baryon $\Omega_{bc}^{0}$ and a search for $\Xi_{bc}^0$ baryon.