Analysis of $X$ Particle Spectra in Quarkonium Model

Jeong Hun Yang, Su Kyeong Lee, Eun-Joo Kim +1

Three more $X$ particles are established in the 2014 Particle Data compared with the 2012 ones. There are now five established $X$ particles named as $X(3872)$, $X(3900)$, $X(4260)…