Observation of exclusive two-body B decays to kaons and pions

Godang, R.; Kinoshita, K.; Lai, I.C.; Pomianowski, P.; Schrenk, S.; Bonvicini, G.; Cinabro, D.; Greene, R.; Perera, L.P.; Zhou, G.J.

doi:10.1103/PhysRevLett.80.3456

Observation of exclusive two-body B decays to kaons and pions

CLEO

Collaboration

•

R. Godang
(
- Virginia Tech.
)

Nov, 1997

9 pages

Published in:

Phys.Rev.Lett. 80 (1998) 3456-3460

e-Print:

hep-ex/9711010 [hep-ex]

DOI:

10.1103/PhysRevLett.80.3456

PDG:

{{\mathit B}^{+}}

\rightarrow

{{\mathit \pi}^{+}}{{\mathit \pi}^{0}}

Report number:

SLAC-PUB-9759,
CLNS-97-1522,
CLEO-97-27

Experiments:

CESR-CLEO-II

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Abstract:

We have studied two-body charmless hadronic decays of B mesons into the final states

\pi\pi

,

K \pi

, and

KK

. Using 3.3 million

B\bar{B}

pairs collected with the CLEO-II detector, we have made the first observation of the decays

B^0\to K^+\pi^-

,

B^+\to K^0\pi^+

, and the sum of

B^+ \to \pi^+\pi^0

and

B^+ \to K^+\pi^0

decays (an average over charge-conjugate states is always implied). We place upper limits on branching fractions for the remaining decay modes.

electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B: hadronic decay
meson: pair production
B: branching ratio
upper limit
CLEO
experimental results

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