Search for the decay D+'+ and an upper limit on the pseudoscalar decay constant

J. Adler, J. J. Becker, G. T. Blaylock, T. Bolton, J. S. Brown, K. O. Bunnell, T. H. Burnett, R. E. Cassell, D. Coffman, V. Cook, D. H. Coward, D. E. Dorfan, G. P. Dubois, A. L. Duncan, G. Eigen, K. F. Einsweiler, B. I. Eisenstein, T. Freese, G. Gladding, C. GrabF. Grancagnolo, R. P. Hamilton, J. Hauser, C. A. Heusch, D. G. Hitlin, J. M. Izen, L. Köpke, A. Li, W. S. Lockman, U. Mallik, C. G. Matthews, R. Mir, P. M. Mockett, R. F. Mozley, B. Nemati, A. Odian, L. Parrish, R. Partridge, J. Perrier, D. Pitman, S. A. Plaetzer, J. D. Richman, H. F.W. Sadrozinski, M. Scarlatella, T. L. Schalk, R. H. Schindler, A. Seiden, C. Simopoulos, A. L. Spadafora, I. E. Stockdale, W. Stockhausen, J. J. Thaler, W. Toki, B. Tripsas, F. Villa, S. Wasserbaech, A. Wattenberg, A. J. Weinstein, N. Wermes, H. J. Willutzki, D. Wisinski, W. J. Wisniewski, R. Xu, Y. Zhu

Research output: Contribution to journalArticlepeer-review

Abstract

We report the results of a search for the leptonic decay D+'+ using the Mark III detector at the SLAC e+e- storage ring SPEAR. A data sample of 9.3 pb-1 collected at the (3770) resonance yields no signal events, corresponding to a 90%-confidence-level upper limit of 7.2×10-4 on the branching ratio B(D+'+). This represents an upper limit on the pseudoscalar decay constant fD of 290 MeV/c2.

Original languageEnglish (US)
Pages (from-to)1375-1378
Number of pages4
JournalPhysical review letters
Volume60
Issue number14
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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