Measurement of the absolute branching fraction for D0 ---> K- pi+

Using 1.79 fb−1 of data recorded by the CLEO II detector we have measured the absolute branching fraction for D0→K−π+. The angular correlation between the π+ emitted in the decay D*+→D0π+, and the jet direction in e+e−→cc¯ events, is used to determine the total number of inclusive D0 mesons produced from this source. The subsequent reconstruction of the decay chain D*+→D0π+,D0→K−π+ allows a measurement of the absolute D0→K−π+ branching fraction. Correcting for decay radiation in the final state, we find scrB(D0→K−π+)=[3.95±0.08(stat)±0.17(syst)]%.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
D0: electroproduction
electroproduction: D0
D0: nonleptonic decay
nonleptonic decay: D0
D0: branching ratio
D*(2010): electroproduction

References(11)

Figures(0)

A Reanalysis of Charmed d Meson Branching Fractions

MARK-III

Collaboration

•

J. Adler

et al.

- Phys.Rev.Lett. 60 (1988) 89,
•
DOI:
- 10.1103/PhysRevLett.60.89

Production and decay of charmed mesons at the Z resonance

ALEPH

Collaboration

•

D. Decamp
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 266 (1991) 218-230
•
DOI:
- 10.1016/0370-2693(91)90769-M

Measurement of the D0 $\to K^- \pi^+$ Branching Fraction

HRS

Collaboration

•

S. Abachi
(
- Argonne (main) and
- Indiana U. and
- LBL, Berkeley and
- Michigan U. and
- Purdue U.
)

et al.

- Phys.Lett.B 205 (1988) 411,
- SLAC Heavy Flavors 1987:401
•
DOI:
- 10.1016/0370-2693(88)91689-9

A Reanalysis of branching fractions of charmed mesons D0, D+ and D(s)+.

ACCMOR

Collaboration

•

S. Barlag

et al.

- Z.Phys.C 55 (1992) 383-390
•
DOI:
- 10.1007/BF01565095

INCLUSIVE D MESON BRANCHING RATIOS

LEBC-EHS

Collaboration

•

M. Aguilar-Benitez

et al.

- Z.Phys.C 36 (1987) 551
•
DOI:
- 10.1007/BF01630592

The CLEO-II detector

CLEO

Collaboration

•

Y. Kubota
(
- Minnesota U.
)

et al.

- Nucl.Instrum.Meth.A 320 (1992) 66-113
•
DOI:
- 10.1016/0168-9002(92)90770-5

Measurement of the Spin Density Matrix of $D^*$ Mesons Produced in $e^+ e^-$ Annihilations

HRS

Collaboration

•

S. Abachi
(
- Argonne (main) and
- Indiana U. and
- LBL, Berkeley and
- Michigan U. and
- Purdue U.
)

et al.

- Phys.Lett.B 199 (1987) 585-590
•
DOI:
- 10.1016/0370-2693(87)91632-7

Study of continuum D*+ spin alignment

CLEO

Collaboration

•

Y. Kubota
(
- Minnesota U.
)

et al.

- Phys.Rev.D 44 (1991) 593-600
•
DOI:
- 10.1103/PhysRevD.44.593

Review of particle properties. Particle Data Group

et al.

- Phys.Rev.D 45 (1992) S1,
- Phys.Rev.D 46 (1992) 5210 (erratum)
•
DOI:
- 10.1103/PhysRevD.45.S1

Study of the Photon Spectrum in the Decay K0(s) --> pi+ pi- gamma

et al.

- Phys.Lett.B 65 (1976) 92-96
•
DOI:
- 10.1016/0370-2693(76)90542-6

PHOTOS: A Universal Monte Carlo for QED radiative corrections in decays

- Comput.Phys.Commun. 66 (1991) 115-128,
- Comput. Phys. Commun. 66 (1991) 115-128 and CERN Geneva - TH. 5857 (90,rec.Oct.) 21 p
•
DOI:
- 10.1016/0010-4655(91)90012-A