The decays of this particle are typically used to measure the angles of the "unitarity triangle" derived from the CKM matrix,and one of those angles is directly measurable from the decay of this particle's neutral form into a J/psi and a strange K. Thecharge of a lepton emitting the semileptonic decay of this particle is used to determine whether the heavy constituent of thisparticle is matter or antimatter, a technique known as a form of "flflavor tagging" named for that heavy constituent.
The decays of this particle are typically used to measure the angles of the "unitarity triangle" derived from the CKM matrix,and one of those angles is directly measurable from the decay of this particle's neutral form into a J/psi and a strange K. Thecharge of a lepton emitting the semileptonic decay of this particle is used to determine whether the heavy constituent of thisparticle is matter or antimatter, a technique known as a form of "flflavor tagging" named for that heavy constituent. The ARGUSgroup used the decay of the 4S resonance of the upsilon meson to measure the oscillation between this particle's neutralvariant's matter and antimatter states; those oscillations, like those of the kaon, make this particle useful for studies of CPviolation. For 10 points, identify this meson studied in the BELLE and BaBar experiments, a bound state of a fiÂrst-generationquark and an anti-bottom quark.
The decays of this particle are typically used to measure the angles of the "unitarity triangle" derived from the CKM matrix,and one of those angles is directly measurable from the decay of this particle's neutral form into a J/psi and a strange K. Thecharge of a lepton emitting the semileptonic decay of this particle is used to determine whether the heavy constituent of thisparticle is matter or antimatter, a technique known as a form of "flflavor tagging" named for that heavy constituent.
B meson ["meson" not required a.er mention; prompt on "meson" before it is read]