Journal article
Improved measurement of the pseudoscalar decay constant f(D-s)
- Abstract:
- We present a new determination of fDs using 5 million e+e-→cc̄ events obtained with the CLEO II detector. Our value is derived from our new measured ratio Γ(D+s → μ+ν)/Δ(D+s → φπ+) = 0.173 ± 0.023 ± 0.035. Using ß(D+s → φπ+) = (3.6 ± 0.9)%, we extract fDs = (280 ± 19 ± 28 ± 34) MeV. We compare this result with various model calculations.
- Publication status:
- Published
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Authors
- Journal:
- Physical Review D More from this journal
- Volume:
- 58
- Issue:
- 3
- Pages:
- 0320021-03200210
- Publication date:
- 1998-08-01
- DOI:
- EISSN:
-
1089-4918
- ISSN:
-
0556-2821
- Language:
-
English
- Pubs id:
-
pubs:13719
- UUID:
-
uuid:0dfc0dd6-5c1f-4668-b604-2d113a785c4e
- Local pid:
-
pubs:13719
- Source identifiers:
-
13719
- Deposit date:
-
2012-12-19
Terms of use
- Copyright date:
- 1998
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