New measurements of the η and K0 masses

A. Lai, D. Marras, J. R. Batley, A. J. Bevan, R. S. Dosanjh, T. J. Gershon, G. E. Kalmus, C. Lazzeroni, D. J. Munday, E. Olaiya, M. A. Parker, T. O. White, S. A. Wotton, G. Barr, G. Bocquet, A. Ceccucci, T. Cuhadar-Dönszelmann, D. Cundy, G. D'Agostini, N. DobleV. Falaleev, W. Funk, L. Gatignon, A. Gonidec, B. Gorini, G. Govi, P. Grafström, W. Kubischta, A. Lacourt, M. Lenti, I. Mikulec, A. Norton, S. Palestini, B. Panzer-Steindel, D. Schinzel, G. Tatishvili, H. Taureg, M. Velasco, H. Wahl, C. Cheskov, P. Hristov, V. Kekelidze, D. Madigojine, N. Molokanova, Yu Potrebenikov, A. Zinchenko, V. J. Martin, P. Rubin, R. Sacco, A. Walker, D. Bettoni, R. Calabrese, M. Contalbrigo, P. Dalpiaz, J. Duclos, P. L. Frabetti, A. Gianoli, E. Luppi, M. Martini, L. Masetti, F. Petrucci, M. Savrié, M. Scarpa, A. Bizzeti, M. Calvetti, G. Collazuol, G. Graziani, E. Iacopini, F. Martelli, M. Veltri, H. G. Becker, M. Eppard, H. Fox, A. Hirstius, K. Holtz, A. Kalter, K. Kleinknecht, U. Koch, L. Köpke, P. Lopes da Silva, P. Marouelli, I. Mestvirishvili, I. Pellmann, A. Peters, S. A. Schmidt, V. Schönharting, Y. Schué, R. Wanke, A. Winhart, M. Wittgen, J. C. Chollet, L. Fayard, L. Iconomidou-Fayard, J. Ocariz, G. Unal*, I. Wingerter-Seez, G. Anzivino, P. Cenci

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

New measurements of the η and K0 masses have been performed using decays to 3π0 with the NA48 detector at the CERN SPS. Using symmetric decays to reduce systematic effects, the results M(η) = 547.843 ± 0.051 MeV/c2 and M(K0) = 497.625 ± 0.031 MeV/c2 were obtained.

Original languageEnglish (US)
Pages (from-to)196-206
Number of pages11
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume533
Issue number3-4
DOIs
StatePublished - May 9 2002

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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