Search for rare and forbidden decays of the charmed meson D+

P. L. Frabetti, H. W.K. Cheung, J. P. Cumalat, C. Dallapiccola, J. F. Ginkel, W. E. Johns, M. S. Nehring, E. W. Vaandering, J. N. Butler, S. Cihangir, I. Gaines, P. H. Garbìncius, L. Garren, S. A. Gourlay, D. J. Harding, P. Kasper, A. Kreymer, P. Lebrun, S. Shukla, M. VittoneS. Bianco, F. L. Fabbri, S. Sarwar, A. Zallo, C. Cawlfield, R. Culbertson, R. W. Gardner, R. Greene, A. Rahimi, J. Wiss, G. Alimonti, G. Bellini, M. Boschini, D. Brambilla, B. Caccianiga, L. Cinquini, M. di Corato, P. Dini, M. Giammarchi, P. Inzani, F. Leveraro, S. Malvezzi, D. Menasce, E. Meroni, L. Milazzo, L. Moroni, D. Pedrini, L. Perasso, F. Prelz, A. Sala, S. Sala, D. Torretta, D. Buchholz, D. Claes, B. Gobbi, B. O'Reilly, J. M. Bishop, N. M. Cason, C. J. Kennedy, G. N. Kim, T. F. Lin, D. L. Puseljic, R. C. Ruchti, W. D. Shephard, J. A. Swiatek, Z. Y. Wu, V. Arena, G. Boca, G. Bonomi, C. Castoldi, G. Gianini, M. Merlo, S. P. Ratti, C. Riccardi, L. Viola, P. Vitulo, A. Lopez, J. L. Mendez, E. Montiel, D. Olaya, E. Ramirez, C. Rivera, Y. Zhang, G. P. Grim, J. M. Link, V. S. Paolone, P. M. Yager, J. R. Wilson, J. Cao, M. Hosack, J. Hughes, P. D. Sheldon, F. Davenport, K. Danyo, T. Handler, B. G. Cheon, Y. S. Chung, J. S. Kang, K. Y. Kim, K. B. Lee, S. S. Myung

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Abstract

We report on the results of a search for fourteen flavor changing neutral current, lepton number violating, or lepton family number violating decays of the charmed meson D+ in the large charm sample recorded by the Fermilab photoproduction experiment E687. No evidence is seen for these rare and standard-model-forbidden decays, of the form D+ → h±l∓l+ (with h = π, K and l = e, μ); we determine 90% confidence level upper limits on their absolute branching fractions in the range (9-20) × 10-5.

Original languageEnglish (US)
Pages (from-to)239-244
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume398
Issue number1-2
DOIs
StatePublished - Apr 10 1997

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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