Measurement of the D0 and D+ lifetimes.
نویسندگان
چکیده
We have used a high-resolution drift chamber in the Mark II Detector at PEP 5 to metiure the lifetimes of Do and D+ mesons produced in e+eannihilations at 29 GeV. Based on a sample of74 decays for the Do mesons and 23 decays for the D+ mesons, the lifetimes are found to be 4.7fi:i f 0.5 x lo-l3 set and 8 9f3*8 . 2., f 1.3 x lo-l3 set, respectively. This leads to a ratio of lifetimes of 1.9”;.“, f 0.3.
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عنوان ژورنال:
- Physical review. D, Particles and fields
دوره 34 9 شماره
صفحات -
تاریخ انتشار 1986