Upper limits on D0-D0 mixing and BB production from muon-nucleon scattering

A. C. Benvenuti*, D. Bollini, G. Bruni, T. Camporesi, G. Heiman, L. Monari, F. L. Navarria, A. Argento, M. Bozzo, H. Gennow, M. Goosens, W. D. Nowak, L. Piemontese, G. Vesztergombi, R. Voss, S. P. Baranov, D. Yu Bardin, N. G. Fadeev, N. D. Gagunashvili, I. A. GolutvinV. F. Grushin, A. A. Komar, V. G. Krivokhizhin, V. Kukhtin, I. A. Savin, A. A. Shikanyan, G. I. Smirnov, J. Strachota, E. V. Telyukov, A. G. Volodko, D. Jamnik, R. Kopp, U. Meyer-Berkhout, A. Staude, K. M. Teichert, R. Tirler, Č Zupančič, M. Cribier, J. Feltesse, A. Milsztajn, A. Ouraou, J. F. Renardy, P. Rich-Hennion, Y. Sacquin, G. Smadja, P. Verrecchia, M. Virchaux

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


In deep inelastic interactions of 200 GeV muons with a carbon target, we have found 17 events of the type μ±N→μ±μμX ("wrong-sign" dimuons). We derive upper limits of 1.2% (90% CL) on D0-D0 transitions (mixing) or, alternatively, of 9 pb (90% CL) cross section for BB pair production as possible sources of such events.

Original languageEnglish
Pages (from-to)531-535
Number of pages5
JournalPhysics Letters B
Issue number6
Publication statusPublished - 5 Sept 1985


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