LHCb results add clues to pentaquark mystery

A re-examination of a particle discovered in 2015 has scientists debating its true identity. Syracuse professor Tomasz Skwarnicki has been a physicist for 30 years. He and his collaborators have measured rare processes and even discovered new particles. But he says their recent re-examination of a particle they discovered in 2015 was one the few analyses that made him exclaim, "Oh my gosh." Skwarnicki has been working on the LHCb experiment at CERN for more than a decade. He uses the collisions ...