Search for $B^0 \to$ phi(K+ $\pi^{-)}$ decays with large $K^{+} \pi^{-}$ invariant mass - INSPIRE

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Search for $B^0 \to$ phi(K+ $\pi^{-)}$ decays with large $K^{+} \pi^{-}$ invariant mass

BaBar

Collaboration

May, 2007

8 pages

Published in:

Phys.Rev.D 76 (2007) 051103

e-Print:

0705.0398 [hep-ex]

DOI:

10.1103/PhysRevD.76.051103

PDG:

{{\mathit B}^{0}}

\rightarrow

{{\mathit \phi}}

{{\mathit K}}{{\mathit \pi}}

{}^{*0}_{0}

(1.60<{\mathit m}_{{{\mathit K}} {{\mathit \pi}}}<2.15)

Report number:

SLAC-PUB-12461,
BABAR-PUB-00-023,
BABAR-PUB-07-023

Experiments:

SLAC-PEP2-BABAR

View in:

reference search30 citations

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Abstract: (arXiv)

Motivated by the polarization anomaly in the B->phi(1020)K*(892) decay, we extend our search for other K* final states in the decay B0->phi(1020)K^*0 with the K*0->K+pi- invariant mass above 1.6 GeV. The final states considered include the K*(1680)0, K3*(1780)0, K4*(2045)0, and a Kpi spin-zero nonresonant component. We also search for B0->phiDbar0 decay with the same final state. The analysis is based on a sample of about 384 million BBbar pairs recorded with the BABAR detector. We place upper limits on the branching fractions BR(B0->phiK*(1680)0)<3.5*10^-6, BR(B0->phiK3*(1780)0)<2.7*10^-6, BR(B0->phiK4*(2045)0)<15.3*10^-6, and BR(B0->phiDbar0)<11.7*10^-6 at 90% C.L. The nonresonant contribution is consistent with the measurements in the lower invariant mass range.

Note:

8 pages, 8 postscript figues, submitted to Phys. Rev. D (Rapid Communications)

11.30.Er
13.25.Hw
13.88.+e
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B0: hadronic decay
Phi(1020)
mass spectrum: (K+ pi-)

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Figures(0)

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