2019 Physics/Theoretical Colloquium Thursday, August 22nd , 2019 3:45 – 4:45 p.m. Rosen Auditorium (TA-53, Bldg. 001) Refreshments at 3:15pm Speaker: Tomasz Skwarnicki Physics Department, Physics Department, Syracuse University “Observation of New Pentaquark States and Other Exotic Hadrons” Abstract: The LHCb experiment has just discovered new narrow pentaquark states decaying to J/psi p, which shed more light into the nature of the J/psi p structures reported by LHCb in Lambda_b decays four years ago. I will describe these results in a broader context of experimental evidence for multiquark states with more than minimal quark content.