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.

Detalles Bibliográficos
Autores principales: Lai, A., Marras, D., Batley, J.R., Bevan, A.J., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., Lazzeroni, C., Munday, D.J., Olaiya, E., Parker, Michael Andrew, White, T.O., Wotton, S.A., Barr, G., Bocquet, G., Ceccucci, A., Cuhadar-Donszelmann, T., Cundy, D., D'Agostini, G., Doble, N., Falaleev, V., Funk, W., Gatignon, L., Gonidec, A., Gorini, B., Govi, G., Grafstrom, P., Kubischta, W., Lacourt, A., Lenti, M., Mikulec, I., Norton, A., Palestini, S., Panzer-Steindel, B., Schinzel, D., Tatishvili, G., Taureg, H., Velasco, M., Wahl, Heinrich, Cheskov, C., Kekelidze, V., Madigojine, D., Molokanova, N., Potrebenikov, Yu., Zinchenko, A., Hristov, P., Martin, V.J., Rubin, P., Sacco, R., Walker, A., Bettoni, D., Calabrese, R., Contalbrigo, M., Dalpiaz, P., Duclos, J., Frabetti, P.L., Gianoli, A., Luppi, E., Martini, M., Masetti, L., Petrucci, F., Savrie, M., Scarpa, M., Bizzeti, A., Calvetti, M., Collazuol, G., Graziani, G., Iacopini, E., Martelli, F., Veltri, M., Becker, H.G., Eppard, M., Fox, H., Hirstius, A., Holtz, K., Kalter, A., Kleinknecht, K., Koch, U., Kopke, L., Lopes da Silva, P., Marouelli, P., Mestvirishvili, I., Pellmann, I., Peters, A., Schmidt, S.A., Schonharting, V., Schue, Y., Wanke, R., Winhart, A., Wittgen, M., Chollet, J.C., Fayard, L., Iconomidou-Fayard, L., Ocariz, J., Unal, G., Wingerter-Seez, I., Anzivino, G., Cenci, P., Imbergamo, E., Lamanna, G., Lubrano, P., Mestvirishvili, A., Nappi, A., Pepe, M., Piccini, M., Casali, R., Cerri, C., Cirilli, M., Costantini, F., Fantechi, R., Fiorini, L., Giudici, S., Mannelli, I., Pierazzini, G., Sozzi, M., Cheze, J.B., Cogan, J., De Beer, M., Debu, P., Derue, F., Formica, A., Gouge, G., Granier de Cassagnac, R., Marel, G., Mazzucato, E., Peyaud, B., Turlay, R., Vallage, B., Holder, M., Maier, A., Ziolkowski, M., Arcidiacono, R., Biino, C., Cartiglia, N., Guida, R., Marchetto, F., Menichetti, Ezio A., Pastrone, N., Nassalski, J., Rondio, E., Szleper, M., Wislicki, W., Wronka, S., Dibon, H., Jeitler, M., Markytan, M., Neuhofer, G., Pernicka, M., Taurok, A., Widhalm, L.
Lenguaje:eng
Publicado: 2002
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(02)01573-3
http://cds.cern.ch/record/545832
Descripción
Sumario: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.

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