Studies of D^+ -> {eta', eta, phi} e^+ nu_e

preprint2011arXivOpen access

CLEO Collaboration J. Yelton P. Rubin N. Lowrey S. Mehrabyan M. Selen J. Wiss M. Kornicer R. E. Mitchell M. R. Shepherd C. M. Tarbert D. Besson T. K. Pedlar J. Xavier D. Cronin-Hennessy J. Hietala P. Zweber S. Dobbs Z. Metreveli K. K. Seth A. Tomaradze T. Xiao S. Brisbane J. Libby L. Martin A. Powell P. Spradlin G. Wilkinson H. Mendez J. Y. Ge D. H. Miller I. P. J. Shipsey B. Xin G. S. Adams D. Hu B. Moziak J. Napolitano K. M. Ecklund J. Insler H. Muramatsu C. S. Park L. J. Pearson E. H. Thorndike F. Yang S. Ricciardi C. Thomas M. Artuso S. Blusk R. Mountain T. Skwarnicki S. Stone J. C. Wang L. M. Zhang G. Bonvicini D. Cinabro A. Lincoln M. J. Smith P. Zhou J. Zhu P. Naik J. Rademacker D. M. Asner K. W. Edwards K. Randrianarivony G. Tatishvili R. A. Briere H. Vogel P. U. E. Onyisi J. L. Rosner J. P. Alexander D. G. Cassel S. Das R. Ehrlich L. Fields L. Gibbons R. Gray S. W. Gray D. L. Hartill B. K. Heltsley D. L. Kreinick V. E. Kuznetsov J. R. Patterson D. Peterson D. Riley A. Ryd A. J. Sadoff X. Shi W. M. Sun

hep-ex

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We report the first observation of the decay D^+ -> eta' e^+ nu_e in two analyses, which combined provide a branching fraction of B(D+ -> eta' e nu) = (2.16 +/- 0.53 +/- 0.07) x 10^{-4}. We also provide an improved measurement of B(D+ -> eta e nu) = (11.4 +/- 0.9 +/- 0.4) x 10^{-4}, provide the first form factor measurement, and set the improved upper limit B(D+ -> phi e nu) < 0.9 x 10^{-4} (90% C.L.).

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Studies of D^+ -> {eta', eta, phi} e^+ nu_e

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