FOCUS Document 767-v2

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Measurement of the branching ratio of the decay D^0\rightarrow \pi^-\mu^+\nu relative to D^0\rightarrow K^-\mu^+\nu

Document #:
FOCUS-doc-767-v2
Document type:
Publication
Submitted by:
Lorenzo Agostino
Updated by:
Lorenzo Agostino
Document Created:
22 Oct 2004, 14:19
Contents Revised:
22 Oct 2004, 15:27
Metadata Revised:
04 Nov 2004, 15:10
Actually Revised:
24 Aug 2005, 15:10
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Abstract:
We present a new measurement of the branching ratio of
the Cabibbo suppressed decay $D^0\rightarrow \pi^-\mu^+\nu$
relative to the Cabibbo favored decay $D^0\rightarrow K^-\mu^+\nu$ and
an improved measurement of the
ratio $\left |\frac{f_+^{\pi}(0)}{f_+^{K}(0)} \right|$.
Our results are $0.074 \pm 0.008 \pm0.007$ for the branching ratio and
$0.85 \pm 0.04 \pm 0.04 \pm 0.01$ for the form factor ratio, respectively.
Files in Document:
  • .ps (slep_plb.ps, 371.2 kB)
Journal References:
Published in Phys. Lett. B vol. 601 pg. 51.
Published in hep-ex/0410068.
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