Studies of $D^+ \to {\eta', \eta, \phi} e^+ \nu_e$ - INSPIRE

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Studies of $D^+ \to {\eta', \eta, \phi} e^+ \nu_e$

CLEO

Collaboration

Nov, 2010

8 pages

Published in:

Phys.Rev.D 84 (2011) 032001

e-Print:

1011.1195 [hep-ex]

DOI:

10.1103/PhysRevD.84.032001

PDG:

{{\mathit D}^{+}}

\rightarrow

{{\mathit \phi}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}

Report number:

CLNS-10-2067,
CLEO-10-4

View in:

reference search38 citations

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Abstract: (arXiv)

We report the first observation of the decay D^+ -> eta' e^+ nu_e in two analyses, which combined provide a branching fraction of B(D+ -> eta' e nu) = (2.16 +/- 0.53 +/- 0.07) x 10^{-4}. We also provide an improved measurement of B(D+ -> eta e nu) = (11.4 +/- 0.9 +/- 0.4) x 10^{-4}, provide the first form factor measurement, and set the improved upper limit B(D+ -> phi e nu) < 0.9 x 10^{-4} (90% C.L.).

Note:

15 pages, 6 figures, available through http://www.lns.cornell.edu/public/CLNS/, submitted to PRD. Minor edits, added appendix with fit results using alternate form factor parameterizations

13.20.Fc
D+: semileptonic decay
D+: branching ratio: measured
CLEO
experimental results
Cornell CESR Stor
electron positron: annihilation
D: pair production
D-: hadronic decay
upper limit

References(19)

Figures(6)

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