Phys.org  August 31, 2018 Mesons are unstable systems and quickly disintegrate in ways that are described as channels of decay. One of these anomalies was observed by LHC scientists in the decay channel of meson B to another meson (K*; this meson contains a strange quark instead of a beauty quark) and a muon-antimuon pair. The origin of the observed anomalies remains unknown. An international team of researchers (Germany, Switzerland, Poland, USA – MIT) propose that an unknown elementary particle outside the Standard Model may be responsible for their existence… read more. Open Access TECHNICAL ARTICLE