Measurement of CP-violating asymmetries in $B^0 \to (\rho \pi)^0$ using a time-dependent Dalitz plot analysis - INSPIRE

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Measurement of CP-violating asymmetries in $B^0 \to (\rho \pi)^0$ using a time-dependent Dalitz plot analysis

BaBar

Collaboration

Mar, 2007

23 pages

Published in:

Phys.Rev.D 76 (2007) 012004

e-Print:

hep-ex/0703008 [hep-ex]

DOI:

10.1103/PhysRevD.76.012004

PDG:

\mathit A_{CP}({{\mathit B}^{0}}

\rightarrow

{{\mathit \rho}^{-}}{{\mathit \pi}^{+}}

Report number:

SLAC-PUB-12377,
BABAR-PUB-07003

Experiments:

SLAC-PEP2-BABAR

View in:

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Abstract:

We report a measurement of CP-violating asymmetries in B0-->(rhopi)0-->pi+pi-pi0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375 million Y(4S) --> BBbar decays, collected by the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form-factor terms occurring in the time-dependent decay rate of the B0 meson. We derive the physically relevant quantities from these coefficients. In particular, we measure a constraint on the angle alpha of the Unitarity Triangle.

Note:

23 pages, 14 postscript figues, submitted to PRD Report-no: BABAR-PUB-07003, SLAC-PUB-12377

13.66.Bc
14.40.Cs
13.25.Gv
13.25.Jx
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B0: hadronic decay
rho(770)

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