Nakano was searching through the debris data when he found a telltale sign of pentaquarks at precisely the mass — 1.54 GeV — Diakonov had predicted. (discovermagazine.com)
LHCb researchers looked for pentaquark states by examining the decay of a baryon known as Λb (Lambda b) into three other particles, a J / ψ -(J - psi), a proton and a charged kaon. (sciencedaily.com)
Running these data through a computer model, they found that they could get the experimental results and model output to agree only when they included two charmonium pentaquarks in the lambda - b decay process — one having a mass of 4.45 gigaelectronvolts (GeV) and the other a mass of 4.38 GeV. (sciencemag.org)