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공공누리This item is licensed Korea Open Government License

Title
Observation of D-0-(D)over-bar(0) Mixing in e(+) e(-) Collisions
Author(s)
B.R.Ko김정현조기현
Publication Year
2014-03-21
Abstract
We observe D-0-(D) over bar (0) mixing in the decay D-0 -> K+ pi(-) using a data sample of integrated luminosity 976 fb(-1) collected with the Belle detector at the KEKB e(+) e(-) asymmetric-energy collider. We measure the mixing parameters x'(2) = (0.09 +/- 0.22) x 10(-3) and y' = (4.6 +/- 3.4) x 10(-3) and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates R-D = (3.53 +/- 0.13) x 10(-3) where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level.
Keyword
Belle experiment; B physics; particle physics; Science Big data
Journal Title
Phys. Rev. Lett
ISSN
0031-9007
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14267
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART70585921
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