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Search for rare and forbidden decays D+ --> h+/- e+/- e+ |
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| Authors: | He Q Muramatsu H Park C S Thorndike E H Coan T E Gao Y S Liu F Artuso M Boulahouache C Blusk S Butt J Dorjkhaidav O Li J Menaa N Mountain R Nandakumar R Randrianarivony K Redjimi R Sia R Skwarnicki T Stone S Wang J C Zhang K Csorna S E Bonvicini G Cinabro D Dubrovin M Briere R A Chen G P Chen J Ferguson T Tatishvili G Vogel H Watkins M E Rosner J L Adam N E Alexander J P Berkelman K Cassel D G Crede V Duboscq J E Ecklund K M Ehrlich R Fields L Galik R S Gibbons L Gittelman B Gray R Gray S W Hartill D L Heltsley B K Hertz D Jones C D Kandaswamy J Kreinick D L Kuznetsov V E Mahlke-Krüger H |
| Institution: | University of Rochester, Rochester, New York 14627, USA. |
| Abstract: | Using 0.8 x 10(6) D+ D- pairs collected with the CLEO-c detector at the psi(3770) resonance, we have searched for flavor-changing neutral current and lepton-number-violating decays of D+ mesons to final states with dielectrons. We find no indication of either, obtaining 90% confidence level upper limits of B(D+ --> pi+ e+ e-) < 7.4 x 10(-6), B(D+ --> pi- e+ d+) < 3.6 x 10(-6), B(D+ --> K+ e+ e-) < 6.2 x 10(-6), and B(D+ --> K- e+ e+) < 4.5 x 10(-6). |
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