Search for the decay Ks → π0e+e-

A. Lai*, D. Marras, R. Batley, A. Bevan, R. S. Dosanjh, T. J. Gershon, G. E. Kalmus, B. Hay, D. J. Munday, E. Olaiya, M. A. Parker, T. O. White, S. A. Wotton, G. Barr, G. Bocquet, A. Ceccucci, T. Cuhadar-Donszelmann, D. Cundy, N. Doble, V. FalaleevL. Gatignon, A. Gonidec, B. Gorini, G. Govi, P. Grafström, W. Kubischta, A. Lacourt, M. Lenti, A. Norton, S. Palestini, B. Panzer-Steindel, G. Tatishvili, H. Taureg, M. Velasco, H. Wahl, C. Cheshkov, A. Gaponenko, P. Hristov, V. Kekelidze, D. Madigojine, N. Molokanova, Yu Potrebenikov, A. Tkatchev, A. Zinchenko, I. Knowles, C. Lazzeroni, V. Martin, R. Sacco, A. Walker, M. Contalbrigo, P. Dalpiaz, J. Duclos, P. L. Frabetti, A. Gianoli, M. Martini, F. Petrucci, M. Savrié, A. Bizzeti, M. Calvetti, G. Collazuol, G. Graziani, E. Iacopini, H. G. Becker, M. Eppard, H. Fox, K. Holtz, A. Kalter, K. Kleinknecht, U. Koch, L. Köpke, P. Lopes da Silva, P. Marouelli, I. Pellmann, A. Peters, B. Renk, S. A. Schmidt, V. Schönharting, Y. Schué

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A search for the decay Ks → π0e+e- has been made using the NA48 detector at the CERN SPS. Using data collected in 1999 during a 40-hour run with a high-intensity Ks beam, an upper limit for the branching fraction B(Ks → π0e+e-) < 1.4 × 10-7 at 90% confidence level has been obtained.

Original languageEnglish (US)
Pages (from-to)253-262
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume514
Issue number3-4
DOIs
StatePublished - 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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