From CERNCourier https://twitter.com/CERNCourier on Twitter: As reported at #LHCP2020 this week, the @LHCbExperiment has achieved the first measurement of the width of c1(3872) No conventional hadron is expected to have such a narrow width in this part of the charmonium spectrum https://cerncourier.com/a/lhcb-interrogates-x3872-line-shape/