New measurements of the eta and K-0 masses have been performed using decays to 3pi(0) with the NA48 detector at the CERN SPS. Using symmetric decays to reduce systematic effects, the results M(eta) = 547.843 +/- 0.051 MeV/c(2) and M(K-0) = 497.625 +/- 0.031 MeV/c(2) were obtained. (C) 2002 Elsevier Science B.V. All rights reserved.
New measurements of the eta and Kappa(0) masses
MENICHETTI, Ezio;
2002-01-01
Abstract
New measurements of the eta and K-0 masses have been performed using decays to 3pi(0) with the NA48 detector at the CERN SPS. Using symmetric decays to reduce systematic effects, the results M(eta) = 547.843 +/- 0.051 MeV/c(2) and M(K-0) = 497.625 +/- 0.031 MeV/c(2) were obtained. (C) 2002 Elsevier Science B.V. All rights reserved.
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