Jun 5 – 9, 2023
Genova, Italy
Europe/Rome timezone

Studies of pentaquark states with strangeness at LHCb

Jun 9, 2023, 9:30 AM
DAD - Room 4H (Genova, Italy)

DAD - Room 4H

Genova, Italy

Invited Exotic hadrons and candidates Exotic hadrons and candidates


Bo Fang


Study of exotic hadrons provides an important perspective on the nature of QCD. Using the pp interaction dataset collected during the Run1 and Run2 data-taking periods, corresponding to an integrated luminosity of 9 fb$^{-1}$, LHCb established the first evidence of pentaquark with strangeness, $P_{\psi s}^{\Lambda}$(4459)$^0$, in $\Xi_b^- \to J/\psi \Lambda K^-$ decays, and further made the first observation of pentaquark with strangeness, $P_{\psi s}^{\Lambda}$(4338)$^0$, in $B^0 \to J/\psi \Lambda \bar{p}$ decays. This talk will focus on the experimental approach of extracting these pentaquark-candidate signals using LHCb data, and discuss about the potential interpretations about the nature of these exotic states.

Primary authors

Bo Fang Keri Vos (Siegen University)

Presentation materials