Study of $B^0 \to \pi^0 \pi^0$, $B^\pm \to \pi^\pm \pi^0$, and $B^\pm \to K^\pm \pi^0$ Decays, and Isospin Analysis of $B \to \pi \pi$ Decays - INSPIRE

DataBETA

Study of $B^0 \to \pi^0 \pi^0$ , $B^\pm \to \pi^\pm \pi^0$ , and $B^\pm \to K^\pm \pi^0$ Decays, and Isospin Analysis of $B \to \pi \pi$ Decays

BaBar

Collaboration

Jul, 2007

8 pages

Published in:

Phys.Rev.D 76 (2007) 091102

e-Print:

0707.2798 [hep-ex]

DOI:

10.1103/PhysRevD.76.091102

PDG:

{{\mathit B}^{+}}

\rightarrow

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

Report number:

SLAC-PUB-12682,
BABAR-PUB-07-039

Experiments:

SLAC-PEP2-BABAR

View in:

reference search113 citations

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Abstract: (arXiv)

We present updated measurements of the branching fractions and CP asymmetries for B0 -> pi0 pi0, B+ -> pi+ pi0, and B+ -> K+ pi0. Based on a sample of 383 x 10^6 Upsilon(4S) -> B Bbar decays collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we measure B(B0 -> pi0 pi0) =(1.47 +/- 0.25 +/- 0.12) x 10^-6, B(B+ -> pi+ pi0)= (5.02 +/- 0.46 +/- 0.29) x 10^-6, and B(B+ -> K+ pi0) = (13.6 +/- 0.6 +/- 0.7) x 10^-6. We also measure the CP asymmetries C(pi0 pi0) = -0.49 +/- 0.35 +/- 0.05, A(pi+ pi0) = 0.03 +/- 0.08 +/- 0.01, and A(K+ pi0) = 0.030 +/- 0.039 +/- 0.010. Finally, we present bounds on the CKM angle

\alpha

using isospin relations.

Note:

8 pages, 3 figures, submitted to Phys. Rev. D (Rapid Communications)

11.30.Er
12.15.Hh
13.25.Hw
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B: hadronic decay
final state: (0charm)
final state: two-pion

References(29)

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