Observation of D+ --> etae + nue.
نویسندگان
چکیده
Using a 281 pb-1 data sample collected at the psi(3770) resonance with the CLEO-c detector at the Cornell Electron Storage Ring, we report the first observation of D+ --> etae + nue. We also set upper limits for D+ --> eta'e + nue and D + --> varphie + nue that are about 2 orders of magnitude more restrictive than those obtained by previous experiments.
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ورودعنوان ژورنال:
- Physical review letters
دوره 102 8 شماره
صفحات -
تاریخ انتشار 2009