Cargando…
New measurements of the $\eta$ and $K^0$ masses
New measurements of the $\eta$ and $K^0$ masses have been performed using decays to 3$\pi^0$ with the NA48 detector at the CERN SPS. Using symmetric decays to reduce systematic effects, the results $M(\eta) = 547.843\pm0.051$~MeV/c$^2$ and $M(K^0) = 497.625\pm0.031$~MeV/c$^2$ were obtained.
Ejemplares similares
-
Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays
por: Lai, A., et al.
Publicado: (2004) -
First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay
por: Lai, A., et al.
Publicado: (2003) -
Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates
por: Lai, A., et al.
Publicado: (2002) -
A measurement of the $K_{S}$ lifetime
por: Lai, A., et al.
Publicado: (2002) -
Measurement of the branching ratio of the deca $K_{L} \to \pi^{\pm}e^{\mp}\nu$ and extraction of the CKM parameter $|V_{us}|$
por: Lai, A., et al.
Publicado: (2004)